Skocz do pozycji: 1.

Tytuł:

Comparasion of Crop Water Stress Index (CWSI) and Water Deficit Index (WDI) by using Remote Sensing (RS)

Autorzy:

Tanriverdi, C.
Atilgan, A.
Degirmenci, H.
Akyuz, A.

Powiązania:

https://bibliotekanauki.pl/articles/101434.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN

Tematy:

water stress index
crop water stress index
water deficit index
remote sensing

Opis:

Drought, water scarcity and climate changes are very important threats for agriculture on a global basis. Remote Sensing (RS) is accepted as a technique to collect data and determine water stress indices. Water Stress Indices (WSI) are useful tools to prevent drought and determine irrigation scheduling. The water stress indices are primarily identified as the Crop Water Stress Index (CWSI) and the Water Deficit Index (WDI). The effect of soil background is major problem to establish CWSI especially during early growth stage measurements of canopy temperature (Ts). Hence, WDI is a better index when it comprised with CWSI because of Ts. CWSI and WDI can be determined by two different techniques. These are determined by using measured by using traditional components to collect data and estimated methods by applying RS components to collect necessary data. Estimated method has many advantages when this method compared with measured method. However, estimated method needs some RS components which are infrared gun (IR), sling psychrometer, Spectro radiometer. With the help of these tools, the necessary data are obtained and WDI is determined. By using Spectro radiometer vegetation indices are defined. Among the many vegetation indices, the Normalized Difference Vegetation Index (NDVI) is mostly used one. By using NDVI determination of vegetation cover is easy and accurate technique to establish WDI. Establishing these both stress indices with less fieldwork and by saving money, time and labor conveys the necessary information for agriculturists using remotely sensed data especially for large agricultural fields.

Źródło:

Infrastruktura i Ekologia Terenów Wiejskich; 2017, III/1; 879-894
1732-5587

Pojawia się w:

Infrastruktura i Ekologia Terenów Wiejskich

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 2.

Tytuł:

Derinkuyu dry bean irrigation planning in semi-arid climate by utilising crop water stress index values

Autorzy:

Uçak, Ali B.
Atılgan, Atılgan
Korytowski, Mariusz
Kocięcka, Joanna
Liberacki, Daniel
Stachowski, Piotr
Saltuk, Burak
Rolbiecki, Roman

Powiązania:

https://bibliotekanauki.pl/articles/28411640.pdf

Data publikacji:

2023

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

dry bean
crop water stress index
CWSI
irrigation time
plant water stress index
Turkey

Opis:

This study was conducted to determine crop water stress index (CWSI) values and irrigation timing in the case of Derinkuyu dry bean (Phaseolus vulgaris L.). In 2017, dry beans were grown as the main crop according to the field design consisting of plots divided into randomised blocks. Irrigation treatment comprised full irrigation (I100) and irrigation issues with three different levels of water stress (I66, I33, I0). This study applied 602 mm of water under the I100 irrigation. The yield of Derinkuyu dry beans was equal to 3576.6 kg∙ha-1 in I100 irrigation. The lower limit (LL) value, which is not necessary for the determination of CWSI, was obtained as the canopy-air temperature difference (Tc - Ta) versus the air vapour pressure deficit (VPD). The upper limit (UL) value, at which the dry beans were wholly exposed to water stress, was obtained at a constant temperature. The threshold CWSI value at which the grain yield of dry beans started to decrease was determined as 0.33 from the measurements made with an infrared thermometer before irrigation in I66 irrigation treatment. As a result, it can be suggested that irrigation should be applied when the CWSI value is 0.33 in dry beans. Furthermore, the correlation analysis revealed a negative correlation between grain yield and crop water stress index and a positive correlation between yield and chlorophyll content. According to variance analysis, significant relationships were found between the analysed parameters at p ≤ 0.01 and p ≤ 0.05.

Źródło:

Journal of Water and Land Development; 2023, 59; 145--152
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 3.

Tytuł:

Groundwater quality assessment for drinking purposes using water quality index in Ali Al-Gharbi District, Iraq

Autorzy:

Al-Shammary, Sarteel Hamid Enad
Al-Mayyahi, Sattar Obaid Maiws

Powiązania:

https://bibliotekanauki.pl/articles/1841940.pdf

Data publikacji:

2021

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

drinking water
groundwater
Iraq
water quality index

Opis:

The present study aimed to assess groundwater quality according to the water quality index (WQI) in Ali Al- Gharbi district of the Maysan Governorate in eastern Iraq. For this purpose, 10 physical parameters such as pH, total hardness (TH), magnesium (Mg2+), calcium (Ca2+), potassium (K+), sodium (Na+), sulphate (SO42–), chloride (Cl–), nitrate (NO3–), and total dissolved solids (TDSs) were examined since 2019 from 16 different locations (viz. wells). The analysis results indicated that 18.75% of the water samples were of good quality, 56.25% of them had low quality, and 25% of such samples were very poor. The WQI also varied from 69.67 and 297.6. Therefore, prior to water use, there is a dire need for some treatments, as protecting this district from pollution is significant.

Źródło:

Journal of Water and Land Development; 2021, 50; 274-280
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 4.

Tytuł:

Comparative Investigation of River Water Quality by OWQI, NSFWQI and Wilcox Indexes (Case study: the Talar River – IRAN)

Autorzy:

Darvishi, G.
Kootenaei, F. G.
Ramezani, M.
Lotfi, E.
Asgharnia, H.

Powiązania:

https://bibliotekanauki.pl/articles/205410.pdf

Data publikacji:

2016

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

Talar River
water quality
Oregon water quality index
OWQI
national sanitation foundation water quality index
NSFWQI
Wilcox

Opis:

Rivers are considered as one of the main resources of water supply for various applications such as agricultural, drinking and industrial purposes. Also, these resources are used as a place for discharge of sewages, industrial wastewater and agricultural drainage. Regarding the fact that each river has a certain capacity for acceptance of pollutants, nowadays qualitative and environmental investigations of these resources are proposed. In this study, qualitative investigation of the Talar river was done according to Oregon Water Quality Index (OWQI), National Sanitation Foundation Water Quality Index (NSFWQI) and Wilcox indicators during 2011–2012 years at upstream, midstream and downstream of the river in two periods of wet and dry seasons. According to the results of OWQI, all of the values at 3 stations and both periods are placed at very bad quality category and the water is not acceptable for drinking purposes. According to NSFWQI, the best condition was related to the upstream station at wet season period (58, medium quality) and the worst condition was related to the downstream in wet season period (46, very bad quality). Also the results of Wilcox showed that in both periods of wet season and dry season, the water quality is getting better from upstream station to the downstream station, and according to the index classification, the downstream water quality has shown good quality and it is suitable for agriculture.

Źródło:

Archives of Environmental Protection; 2016, 42, 1; 41-48
2083-4772
2083-4810

Pojawia się w:

Archives of Environmental Protection

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 5.

Tytuł:

Determination of Water Quality Index of Selected Water Bodies in Warri, Delta State, Nigeria

Autorzy:

Ama, Ibiam Ntachiobi
Ebichime, Nwajei Godwin
Agbaire, Patience Odafe
Verla, Andrew Wirnkor

Powiązania:

https://bibliotekanauki.pl/articles/1112889.pdf

Data publikacji:

2018

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

arithmetic index
physicochemical parameter
water quality index (WQI)

Opis:

Water Quality index indicating the water quality in terms of index number, offers a useful representation of overall quality of water for public or for any intended use, as well as in pollution abatement programmes and in water quality management. The present study was carried out to determine the Water Quality Index (WQI) of selected rivers in Warri, Delta State, using fourteen physicochemical parameters and on the basis of weighted Arithmetic Index in order to access the suitability of this water for consumption, recreation and other purposes. The parameters were measured monthly for one year at the six selected water bodies. In this study, WQI was determined by the analysis-on the basis of various physicochemical parameters such as pH, chlorides, electrical conductivity, dissolved oxygen, biochemical oxygen demand, total dissolved solid, total suspended solids, chlorides, sulphates, chemical oxygen demand, oil/grease. Result obtained for the different sampling sites were found to fall within the WQI classifications - poor water (100-200) to unsuitable water or unfit (>300). There is, therefore, the need to periodically assess these water bodies to ensure the quality is suitable for the intended purpose.

Źródło:

World News of Natural Sciences; 2018, 16; 42-52
2543-5426

Pojawia się w:

World News of Natural Sciences

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 6.

Tytuł:

Interpretation of Groundwater Quality Using Statistical Techniques in Federal University, Otuoke and Environs, Bayelsa State, Nigeria

Autorzy:

Abadom, C. D.
Nwankwoala, H. O.

Powiązania:

https://bibliotekanauki.pl/articles/1178059.pdf

Data publikacji:

2018

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Groundwater quality
hydrochemistry
potable water
water quality index

Opis:

This study aims at assessing and interpreting groundwater quality using statistical techniques in Otuoke and environs, Bayelsa State, Nigeria. Fourteen (14) groundwater samples were collected in the rainy season and analyzed for their physico-chemical and heavy metal contents. Heavy metals were analyzed using Atomic Adsorption Spectrometer. Assessment for drinking purposes revealed that the water is predominantly acidic, with iron and manganese contents exceeding regulatory guidelines in most locations. All other parameters were within WHO and NSDWQ regulatory limits for safe potable water. Water Quality Index revealed that over 73% of the groundwater in the area (11 samples) had good to excellent quality; while the remaining 27% of the groundwater (3 samples) have poor to unsuitable quality for consumption. Assessment of water quality for irrigation purposes was achieved using Sodium Adsorption Ratio (SAR), Potential Salinity (PS), Permeability Index (PI), Sodium percentage (Na%), Kelly’s ratio (KR), and Magnesium Adsorption Ratio (MAR). On average SAR (4.19), PI (68.51%), MAR (37.45%) and PS (0.77) revealed excellent water quality, whereas Na% (66.46%) revealed doubtful water quality while KR (2.00) revealed unsuitable water quality. Using Piper and Stiff diagrams, hydrochemical facies defined from groundwater in the area includes; Na+K – Cl facies; Na+K - Mg – Cl facies; and Na+K - Ca – Cl facies. Gibb’s diagrams revealed that the dominant control on the hydrochemical facies and overall groundwater quality in the area has been attributed to precipitation and chemical weathering of subsurface rocks. Various ionic ratios including Mg/Ca (0.642), HCO3ˉ/Cl (0.040), (Na+K)/Cl (7.026) and Cation Exchange Values (-6.026) revealed low salt inland origin with respect to provenance. Pearson correlation matrices showed both positive and negative inter-relationships between the physico-chemical and heavy metals in groundwater within the study area. This study has proven the effective use of water quality index as a tool for defining the overall quality of water in Otuoke and its environs, along with hotspots that needs immediate attention. The results could also serve as a decision making tool that will aid in establishment of treatment facilities to improve the quality of water in the study area.

Źródło:

World Scientific News; 2018, 95; 124-148
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 7.

Tytuł:

Assessment of Lower Zab river water quality using both Canadian Water Quality Index Method and NSF Water Quality Index Method

Autorzy:

Ahmed, Sarah M.
Taha, Omer M.E.
Najemalden, Mohamed A.
Ahmed, Rehab T.
Abedulwahab, Ali A.

Powiązania:

https://bibliotekanauki.pl/articles/118599.pdf

Data publikacji:

2020

Wydawca:

Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie

Tematy:

NSF Water Quality Index
Canadian Water Quality Index
Lower Zab river
physicochemical parameters
dissolved oxygen
biochemical oxygen demand

Opis:

Rivers are considered the most important sources of surface water on Earth. They are play a significant role in all human activities and the quality of river water is needed. Therefore, the importance of the water quality index is arising through providing data base about quality of the water source, and explain the change in the water quality over a period of time continually. This study involved determination of physicochemical and biological parameters of Lower Zab river in Kirkuk city at two different points. The objectives of the study are to assess the present water quality, through analysis of some selected water quality parameters like pH, TDS, BOD, dissolved oxygen, turbidity, EC, alkalinity, and salinity etc. and to compare the results with the Canadian Council of Ministers of the Environment and National Sanitation Foundation Water Quality Indices. Raw water samples were collected from the Lower Zab river twice a month by one sample every 15 days from each station. The water quality data include 16 different parameters. Tests were carried out following the American Public Health Association standard methods. The results show that all parameters values were within the standards of drinking water proposed by the CCME standards and Iraqi standards or the World Health Organization standards for drinking purpose, except turbidity, DO, nitrate, calcium, which were mostly higher than the standards and sometimes BOD and potassium. The results of WQI showed that the water quality at LZ3 station is lower than LZ2 station due to the polluting activity of the Lower Zab river. Furthermore, for the years 2014, 2015, and 2016, the water quality was degraded due to the ISIS war. Also, it was noted in the 2013 year that the water quality degraded more in fall and winter seasons due to that the earth has exposed to the long-dried season and then suddenly exposed to a high rainfall season which in turns leads to increase some parameters very high (i.e. turbidity). Finally, the Lower Zab river water cannot be use for drinking directly. However, a pretreatment is needed before the drinking use.

Źródło:

Scientific Review Engineering and Environmental Sciences; 2020, 29, 2; 155-171
1732-9353

Pojawia się w:

Scientific Review Engineering and Environmental Sciences

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 8.

Tytuł:

Spatiotemporal mapping of inundation area at Lake Limboto in Gorontalo, Indonesia, using cloud computing technology

Autorzy:

Lahay, Rakhmat Jaya
Koem, Syahrizal

Powiązania:

https://bibliotekanauki.pl/articles/2073728.pdf

Data publikacji:

2022

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

Google Earth Engine
Lake Limboto
lake shrinkage
Landsat
remote sensing
water index

Opis:

Monitoring activities on the dynamics of water shrinkage at Lake Limboto are essential to the lake’s ecosystem’s recovery. A remote sensing technology functions to monitor the dynamics of lake inundation area; this allows one to produce a comprehensive set of spatial and temporal data. Such complex satellite dataset demands extra time, greater storage resources, and greater computing capacity. The Google Earth Engine platform emerges as the alternative to tackle such problems. The present study aims to explore the capability of Google Earth Engine in formulating spatial and temporal maps of the inundation area at Lake Limboto. A total of 345 scenes of Landsat image on the study area (available during the period of 1989–2019) were involved in generating a quick inundation area map of the lake. The whole processes (pre-processing, processing, analysing, and evaluating) were automatized by using the Google Earth Engine interface. The evaluation of mapping result accuracy indicated that the average score of F1-score and Intersection over Union (IoU) was at 0.88 and 0.91, respectively. Moreover, the mapping results of the lake’s inundation area from 1989 to 2019 showed that the inundation area tended to decrease significantly in size over time. During the period, the lake’s area also shrank from 3023.8 ha in 1989 to 1275.0 ha in 2019. All in all, the spatiotemporal information about the changes in lake area may be treated as a reference for decision-making processes of lake management in the future.

Źródło:

Journal of Water and Land Development; 2022, 52; 27--33
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 9.

Tytuł:

Assessment and Physicochemical Characterization of Groundwater Quality for Irrigation and Drinking Purposes in Bazer Sakhra (Eastern Area of Algeria)

Autorzy:

Bounab, Samia
Khemmoudj, Kaddour
Sedrati, Nassima

Powiązania:

https://bibliotekanauki.pl/articles/2173296.pdf

Data publikacji:

2022

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

groundwater
drinking water
irrigation water
water quality index
hydrochemical facies

Opis:

Twenty groundwater samples were collected and then examined for physical (pH, EC, TDS) and chemical (Na+, K+, Ca2+, Mg2+, HCO3−, Cl−, SO42−, NO3) parameters, followed by multivariate statistics to determine the current state of groundwater quality and to assess the suitability of these resources for drinking and irrigation purposes in the Baser Sakhra area localized in Eastern of Algeria. The analysis carried out showed that the cations trend in most of the groundwater samples is on the order of Ca2+˃Na+˃Mg2+˃K+ and the anions trend is on the order of HCO3-˃SO42-˃Cl-. Stabler diagram demonstrated the predominance of Ca2+- HCO3- hydro-chemical facies (80%). Moreover, the parameters, such as sodium adsorption ratio, percentage sodium, residual sodium carbonate, permeability index, Kelly’s ratio, potential salinity, and magnesium hazard were evaluated for the suitability of groundwater for irrigation. The values obtained in this investigation concluded that most of the groundwater samples are suitable for irrigation. From the other approach, the Water Quality Index (WQI) for drinking was also used in the current study. WQI ranged from 72.46 to 506.426, indicating that 40% of the samples were suitable for drinking however, 60% of them belong to the poor to unsuitable category of drinking water in terms of physicochemical properties, according to the World Health Organization norms.

Źródło:

Journal of Ecological Engineering; 2022, 23, 8; 119--132
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 10.

Tytuł:

Defining Irrigation Scheduling Based on Crop Water Stress Index and Physiological Parameters for Hybrid Corn in Semi-Arid Climate

Autorzy:

Ucak, Ali Beyhan
Saltuk, Burak
Rolbiecki, Roman
Atilgan, Atilgan

Powiązania:

https://bibliotekanauki.pl/articles/2174923.pdf

Data publikacji:

2022

Wydawca:

Politechnika Koszalińska. Wydawnictwo Uczelniane

Tematy:

corn
crop water stress index
irrigation time
correlation

Opis:

The goal of this study is to determine the crop water stress index (CWSI) and irrigation scheduling based on CWSI values, as well as to examine the correlations between CWSI, physiological parameters and grain yield of hybrid corn P31A34 in semi-arid climate conditions. In 2014 and 2015, the upper limit (UL) temperatures at which plants were entirely exposed to water stress were 1.178°C and 2.38°C, respectively. When the corn grain yield began to decline, the CWSI threshold value was 0.34, indicating the yield limit. Grain yield, crop water consumption, crop water stress index, chlorophyll content, water use efficiency and leaf area index were found to have negative correlations (p ≤ 0.01) with CWSI values in both years of the study. The findings revealed that in semi-arid climate conditions, a maximum of 30% water deficit could be used during the growing period of the corn compared to full irrigation (I100) for water savings and that a water deficit greater than 30% results in considerable grain yield losses. In areas with limited water resources, the moderate water deficit (I70) may be a viable alternative to the I100.

Źródło:

Rocznik Ochrona Środowiska; 2022, 24; 231--245
1506-218X

Pojawia się w:

Rocznik Ochrona Środowiska

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 11.

Tytuł:

Effluent Quality Assessment of Selected Wastewater Treatment Plant in Jordan for Irrigation Purposes: Water Quality Index Approach

Autorzy:

Ibrahim, Mohamad Najib

Powiązania:

https://bibliotekanauki.pl/articles/124774.pdf

Data publikacji:

2019

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

water quality index
treated effluent
irrigation water
wastewater reuse
Jordan

Opis:

The use of treated wastewater for irrigation purposes will be an essential component for sustainable water resources management, especially in the water-stressed countries as in Jordan. In this context, an attempt has been made to determine the suitability of effluent quality of selected wastewater treatment plants in Jordan for the irrigation purposes based on weighted arithmetic water quality index (WQI) approach, according to the Jordanian standards for reclaimed domestic wastewater. The effluent wastewater quality records from 22 wastewater treatment plants within a one-year-monitoring period from March 2015 to February 2016 were used. Fifteen physical, chemical, and microbiological parameters were selected to calculate WQI. According to the WQI scale classification, most of the selected wastewater treatment plants were not in full compliance with the Jordanian standards for the reclaimed domestic wastewater regarding the direct reuse of treated wastewater for the irrigation purposes. Therefore, for category A (i.e., vegetables that are normally eaten cooked, parking areas, sides of roads inside cities, and playgrounds), one plant is classified in the 'Excellent water' class and six plants as a "Good water" class. For category B (i.e., irrigation of fruit trees, green areas, and sides of roads outside the cities), one plant is classified in the 'Excellent water' class and twelve plants as a "Good water" class. For category C (i.e., irrigation of industrial crops, field crops, and forest trees), one plant is classified in the 'Excellent water' class and fifteen plants as a "Good water" class. The effective weight calculations identified that E. coli is considered the most effective parameter in the WQI values in category A, and to a lesser extent, SAR, pH, BOD, and NO₃⁻. For category B, the SAR, pH and E. coli parameters are considered the most effective parameters in the WQI values. In turn, for category C, the SAR, pH, and PO₄^–3 parameters are considered the most effective parameters in the WQI values. Thus, these parameters based on category are considered as the main parameters which degrade the effluent wastewater quality for irrigation purposes. The results of this study are beneficial for the water managers and policymakers for proper actions on water resources and agricultural management in Jordan.

Źródło:

Journal of Ecological Engineering; 2019, 20, 10; 206-216
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 12.

Tytuł:

Assessment Water Quality Indices of Surface Water for Drinking and Irrigation Applications – A Comparison Review

Autorzy:

Al Yousif, Mustafa A.
Chabuk, Ali

Powiązania:

https://bibliotekanauki.pl/articles/24201763.pdf

Data publikacji:

2023

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

WQI
water quality index
drinking use
irrigation use
index
WQR
water quality rating

Opis:

Water is one of the most important natural resources for all living organisms, including humans. Water consumption is increasing over the years as a result of the increase in the number of people, and at the same time, the causes of pollution of surface water sources increase. Water pollution is one of the most important causes of diseases and the transmission of infection to the organisms that use it. Also, the quality of agricultural crops is linked to the quality of the water used for irrigation. As a result, there was a need to monitor and evaluate the main water sources to maintain the quality of their water suitable for use by humans and other organisms. As is well known, it is difficult to evaluate the water quality of large samples with concentrations of many parameters using traditional methods, which depend on comparing experimentally determined parameter values with current standards. As a result, over the past century and the present, many methods of assessing water quality have emerged. This research aims to introduce the most important indices of water quality used at present to assess the quality of surface water for drinking and irrigation purposes, as well as the history of these methods and their development over time and their most important advantages, in addition to a group of the most important research that used these methods during the past few years.

Źródło:

Journal of Ecological Engineering; 2023, 24, 5; 40--55
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 13.

Tytuł:

Applying of water quality indices methods for assessment of 9-Nissan Water Treatment Plant

Autorzy:

Abdul-Hameed, Hayder M.

Powiązania:

https://bibliotekanauki.pl/articles/1844403.pdf

Data publikacji:

2020

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

nitrate
pH
suspended solids
water quality index
water treatment plant

Opis:

In this research different methods for measuring water quality indices were conducted to investigate the performance of the newly designed, constructed and operated 9-Nissan water treatment plant, Iraq. Data gathering and implementation took place throughout winter and summer. Water samples were taken periodically, according to the standard method, the research was carried out by collecting different random samples for eight months (Jun. 2015–Jan. 2016) and measuring (turbidity, total hardness, pH, total dissolved solids, suspended solids, Cl–, Mg2+, Fe2+,NO3–, NH3+) for each sample. Five different approaches and methodologies of calculating the water index were applied. The results revealed that the Water Quality Indices varied from 70.55 to 88.24, when applying Canadian Council of Ministers of the Environment Water Quality Index (CCMEWQI) and British Columbia water quality index (BCWQI) geometric weighted mean respectively. All the results, from the five approaches indicated good water quality, multiple regression analyses were conducted for turbidity, total hardness and suspended solids, they found that these parameters are strongly related to each other and to other parameters.

Źródło:

Journal of Water and Land Development; 2020, 47; 25-29
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 14.

Tytuł:

Assessment of Surface Water Quality in the Hau Giang Province Using GIS and Statistical Approaches

Autorzy:

Thuan, Nguyen Cong

Powiązania:

https://bibliotekanauki.pl/articles/2173356.pdf

Data publikacji:

2022

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

GIS
geographical information system
multivariate statistics
water quality index
water supply

Opis:

The study aimed to assess the surface water quality in the Hau Giang province in 2021 at 44 locations (with a frequency of 5 times per year) using Principal Component Analysis (PCA), Cluster Analysis (CA) and GIS. Surface water quality was compared with the national technical regulation on surface water quality (QCVN 08-MT:2015/BTNMT, column A1) and Water Quality Index (WQI). The results showed that the surface water quality parameters of total suspended solids, organic matters, nutrients, coliform, and Fe far exceeded the allowable limits, while the Cl-, color, and CN- parameters were within the allowable limits of QCVN 08-MT:2015/BTNMT, column A1. The values of WQI showed that the water quality of the Hau Giang province ranged from poor to excellent. The water quality at the Vam Cai Dau and Hau River areas could only be exploited for water supply, but appropriate treatment is needed. CA divided the monitoring months into three distinct clusters and reduced the sampling sites from 44 to 33 locations, reducing 25% of monitoring cost per year. PCA revealed three main factors which could explain 69.0% of the variation in water quality. The water pollution sources were mainly industrial and agricultural discharges, domestic and urban activities, transportation activities, salinity, hydrological conditions and water runoff. The current findings provide useful information which support local environmental managers and water supply companies for safe and sustainable.

Źródło:

Journal of Ecological Engineering; 2022, 23, 9; 265--276
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 15.

Tytuł:

Assessing Groundwater Quality for Drinking Purpose in Jordan: Application of Water Quality Index

Autorzy:

Ibrahim, Mohamad Najib

Powiązania:

https://bibliotekanauki.pl/articles/124859.pdf

Data publikacji:

2019

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

water quality index
groundwater quality
drinking water
Escherichia coli
hydrochemistry
Jordan

Opis:

Groundwater is a key source of drinking water in Jordan. This study was conducted to assess the suitability of groundwater in major groundwater basins in Jordan for drinking purposes. The groundwater quality data from sixteen sampling stations within one-year-monitoring period from March 2015 to February 2016 were used. Weighted arithmetic water quality index (WQI) with respect to the Jordanian standards for drinking water was used for quality assessment. Sixteen Physical, chemical and microbiological parameters were selected to calculate WQI. The result showed that all physical and chemical parameters were almost below the maximum allowable level based on the Jordanian standards for drinking. On the other hand, the microbiological parameter (i.e. E.coli count) was exceeded the maximum allowable limit in all the studied locations based on the Jordanian standards for drinking water. The computed WQI values range from 40 to 4295. Therefore, out of 16 studied locations, three locations are classified in the “Excellent water” class, nine locations as a “Good water” class, one as a “Poor water” class, two as a “very poor water” class, and one as a “water unsuitable for drinking purpose” class. Furthermore, Escherichia coli is considered the most effective parameter on the determination of WQI in this study. This result highlighted the importance of including the microbiological parameters in any drinking water assessment, since they reflect with other physical and chemical parameters the actual condition of water quality for different purposes.

Źródło:

Journal of Ecological Engineering; 2019, 20, 3; 101-111
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 16.

Tytuł:

Dynamics of water consumption changes in a tourist resort

Autorzy:

Bartkowska, I.

Powiązania:

https://bibliotekanauki.pl/articles/125041.pdf

Data publikacji:

2014

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

indicators
tap water
variation trends
water consumption
water requirement index
water supply system

Opis:

This work presents problems related to the water consumption in the city of Olecko situated in the north-east part of Poland in the Warmińsko-Mazurskie Province of the country, at the eastern border of the Mazurian Lake District along the trail connecting the land of the Large Mazurian Lakes with the Suwalsko-Augustowskie Lake District. Over 2011–2012 water extraction to the municipal water supply network was studied. The volume of water extracted every day was analyzed and the gathered volumes were analyzed statistically. The varying water extraction was also studied. The obtained results were presented in a graphic form. Basing on the descriptive stats and prepared diagrams certain general conclusions were drawn and the collected study figures and facts were summed up. This allowed to determine days of the highest and lowest water consumption. Also months of extreme water extraction and consumption were determined. The water extraction ranged from 1641 m3/24h to 2607 m3/24h, at an average value of 2077.4 m3/24h. Over the period under study the day of the largest water extraction and consumption was in July and the day of the lowest water extraction and consumption in December. During a week inhabitants used the highest water amount on Saturdays and the lowest on Sundays and other feast-days. Basing on the conducted measurements also the coefficient of water consumption per capita was determined. The fluctuation of this coefficient was identical as that for the water consumption. Within the period of study it ranged from 73.3 l/M 24h to 116.5 l/M 24h. The average value of the specific water consumption was 92.8 l/M 24h. For the sake of discussion the obtained results were compared with observations across the country.

Źródło:

Journal of Ecological Engineering; 2014, 15, 4; 46-54
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 17.

Tytuł:

Assessing Water Quality of Kufranja Dam (Jordan) for Drinking and Irrigation: Application of the Water Quality Index

Autorzy:

Abualhaija, Mahmoud M.
Mohammad, Alsharifa-Hind

Powiązania:

https://bibliotekanauki.pl/articles/1955562.pdf

Data publikacji:

2021

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

Kufranja Dam
Jordan
physicochemical parameter
water quality index
drinking
irrigation

Opis:

The current study was undertaken to assess the physicochemical quality of the Kufranja dam (KD) surface water in northern Jordan during the summer and winter seasons [2019]. The samples were analyzed for temperature, pH, dissolved oxygen, conductivity, major cations, major anions, and heavy metals. Most of the physicochemical parameters exhibited a similar spatial distribution, where the maximum concentrations were observed at the dam’s entrance, while the minimum concentrations were recorded at the dam’s end. This indicates that the factors affecting their occurrence and distribution are the same, including natural discharges from the surrounding catchment areas, weathering products, agricultural activities, and wastewater effluents that enter the dam via Wadi Kufranja. All the physicochemical parameters and heavy metals in KD water lie below the maximum permissible levels of the Jordanian and international standards for drinking and irrigation, except for EC values that are above WHO standards for drinking. The application of the water quality index (WQI) depicts that the KD water is chemically unsuitable for use in drinking and needs proper treatment before use. The irrigation indices (SAR, Na%, and MH) indicate that the KD water is chemically suitable for irrigation, whereas EC results and USSL diagram showed that the dam’s water is suitable for irrigation and belongs to the categories of good to permissible for irrigation. Therefore, KD water is suitable for irrigation of most soils (except soils with low salt tolerance). Crops with good salt tolerance are recommended and a special treatment of salinity might be required.

Źródło:

Journal of Ecological Engineering; 2021, 22, 9; 159-175
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 18.

Tytuł:

Spatial and temporal assessment of surface water quality using water quality index The Saguling Reservoir, Indonesia

Autorzy:

Marselina, Mariana
Sabar, Arwin
Fahimah, Nurul

Powiązania:

https://bibliotekanauki.pl/articles/1844302.pdf

Data publikacji:

2021

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

inverse distance weight
spatial and temporal assessment
surface water
water quality index

Opis:

Developments in agriculture, industry, and urban life have caused the deterioration of water resources, such as rivers and reservoirs in terms of their quality and quantity. This includes the Saguling Reservoir located in the Citarum Basin, Indonesia. A review of previous studies reveals that the water quality index (WQI) is efficient for the identification of pollution sources, as well as for the understanding of temporal and spatial variations in reservoir water quality. The NSFWQI (The National Sanitation Foundation water quality index) is one of WQI calculation methods. The NSFWQI is commonly used as an indicator of surface water quality. It is based on nitrate, phosphate, turbidity, temperature, faecal coliform, pH, DO, TDS, and BOD. The average NSFWQI has been 48.42 during a dry year, 43.97 during a normal year, and 45.82 during a wet year. The WQI helped to classify water quality in the Saguling Reservoir as “bad”. This study reveals that the strongest and most significant correlation between the parameter concentration and the WQI is the turbidity concentration, for which the coefficient correlation is 0.821 in a dry year, and faecal coli, for which the coefficient correlation is 0.729 in a dry year. Both parameters can be used to calculate the WQI. The research also included a nitrate concentration distribution analysis around the Saguling Reservoir using the Inverse Distance Weighted method.

Źródło:

Journal of Water and Land Development; 2021, 49; 111-120
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 19.

Tytuł:

A Multivariate Technique to Develop Hybrid Water Quality Index of the Bengawan Solo River, Indonesia

Autorzy:

Lusiana, Evellin Dewi
Mahmudi, Mohammad
Hutahaean, Sarah Mega
Darmawan, Arief
Buwono, Nanik Retno
Arsad, Sulastri
Musa, Muhammad

Powiązania:

https://bibliotekanauki.pl/articles/2026733.pdf

Data publikacji:

2022

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

principal component analysis
WQI
water quality index
variable selection
water quality assessment

Opis:

Surface water resource, such as river, is constantly contaminated by domestic and industrial pollutants. In order to properly manage the water resource, a composite index for water quality assessment, such as water quality index (WQI), has been designed to monitor and evaluate the properties of surface water. However, this index is quite subjective in terms of determination of relative weights. A principal component analysis (PCA) can be used to reduce the dimension and subjectivity of water quality variables. The purpose of this study was to implement the use of hybrid PCA and WQI methods to assess and monitor the water quality of the Bengawan Solo River, which is located in Java Island, Indonesia. The result suggested that COD, BOD, TSS, TDS, nitrate, nitrite, and ammonia were the main factors that determine water quality of the Bengawan Solo River. Furthermore, it was revealed that most samples from the river showed water quality status as slightly polluted. In addition to this, the seasonal variation of the PCWI values indicated a significant increase of water pollution in the Bengawan Solo River per year.

Źródło:

Journal of Ecological Engineering; 2022, 23, 2; 123-131
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 20.

Tytuł:

Study to develop a co-relationship between water quality and land use pattern as index of riverine wetland with statistical approach

Autorzy:

Roy, Malabika Biswas
Kumar, Abhishek
Ghosh, Arnab
Roy, Pankaj Kumar

Powiązania:

https://bibliotekanauki.pl/articles/1050851.pdf

Data publikacji:

2020-03-31

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

water quality index
wetland dependency
socio-economic evaluation
vegetation index
analysis of variance

Opis:

This investigation additionally recognizes partner cooperation issue and furthermore to moderate the real issue through subjective and quantitative appraisal of riverine wetland. Considering a floodplain wetland in rustic West Bengal, the concentration was extended to perceive the type of wetland capacities as per the idea of individuals’ contribution by group examination. Be that as it may, NDVI was connected to ponder the total weeds condition into the wetland to decide the connection between Water Quality Index (WQI) with Normalized Difference Vegatation Index (NDVI) and its impact on valuation. In ANOVA, which is computed by MINITAB programming, centrality level was lower than 0.05 for each case.

Źródło:

Quaestiones Geographicae; 2020, 39, 1; 33-43
0137-477X
2081-6383

Pojawia się w:

Quaestiones Geographicae

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 21.

Tytuł:

Analysis and Evaluation of Water Losses in the Collective Water Supply System
Analiza i ocena strat wody w wybranym wodociągu grupowym

Autorzy:

Ociepa, Ewa

Powiązania:

https://bibliotekanauki.pl/articles/1812009.pdf

Data publikacji:

2019

Wydawca:

Politechnika Koszalińska. Wydawnictwo Uczelniane

Tematy:

water losses
percentage water loss index
infrastructure leakage index
unit water start index
failure intensity index
straty wody
procentowy wskaźnik wody
infrastrukturalny indeks wycieków
jednostkowe wskaźniki start wody
wskaźnik intensywności uszkodzeń sieci wodociągowej

Opis:

The paper presents the analysis and evaluation of water losses in the distribution system used by the Water and Sewage Company in Końskie, Poland. The analysis of water losses was conducted based on the use of numerous indices that provide objective information on the condition of the water supply system. The method of the percentage water loss index was extended by the methods of determination of water losses according to the International Water Association (IWA). The data needed for the calculation of water losses, such as the amount of water supplied to the network, the water sold, water used for the company's own needs, the length of the network, the number and length of water supply connections, number of customers, mean pressure in the network, and number of failures was derived from Water and Sewage Company in Końskie, Poland. These data were used to calculate the amount of water losses in individual years, percentage water loss index (PWS), and the indices recommended by the International Water Association (IWA): Real Leakage Balance (RLB), Non-Revenue Water Basic (NRWB), Unavoidable Annual Real Losses (UARL), Infrastructure Leakage Index (ILI) and unit indices of loss per capita and per kilometre of network. Due to the likely relationships of the load and failure rate of the network with water losses, the failure intensity index and index of hydraulic load to the network. The results of the analysis showed that with its comprehensive activities, the company has significantly reduced its water losses in recent years. Currently, most of the water loss indices have reached a level considered good compared to the national data and average according to the standards used in Western European countries. In 2012, most of the analysed loss indices were at a high or even very high level and showed higher than the national average loss of network water. The decrease of the NRWB index from 29% in 2012 to ca. 18% in 2018, and the decrease of the ILI value in the respective years from 3.1 to 1.5-1.6 indicate the effective countermeasures used to limit water losses. Currently, the value of IMI according to strict IWA criteria suggests a very good condition of the network. RLB2 is another indicator that fell sharply over the period analysed. In 2012, its value was more than twice as high as at present. On the other hand, the average condition of the network is indicated by the unit water loss index per capita, which amounted to 52.80 in 2012 and currently is about 23.07 dm3/(inhabitant day). Very low values of the failure intensity index of the water supply system indicate that the impact of failures on water losses is insignificant, assuming that the company responds quickly to remove identified leaks and there are no undetected failures. The several years of analysis and evaluation of numerous indices of water loss presented in the paper reveals the effectiveness of the adopted strategies of reducing leakages in the distribution system. It should be noted that the company has been involved in comprehensive activities aimed at limitation of water losses for several years.
W artykule przedstawiono analizę i ocenę strat wody w systemie dystrybucji eksploatowanym przez Przedsiębiorstwo Wodociągów i Kanalizacji w Końskich. Analizę strat wody przeprowadzono w oparciu o liczne wskaźniki pozwalające na obiektywną informację o stanie sieci wodociągowej. Metoda procentowego wskaźnika strat wody rozszerzona została o metody określania strat według International Water Association(IWA). Niezbędne dane do obliczeń strat wody jak: ilość wody dostarczanej do sieci, wody sprzedanej, zużytej na potrzeby własne zakładu, długość sieci, ilość i długość połączeń wodociągowych, liczbę odbiorców, średnie ciśnienie w sieci, liczba awarii otrzymano z Przedsiębiorstwa Wodociągów i Kanalizacji w Końskich. Na ich podstawie wyznaczono: ilość strat wody w poszczególnych latach, procentowy wskaźnik strat wody (PWS), a także zalecane przez International Water Association (IWA) wskaźniki: Real Leakage Balance (RLB), Non-Revenue Water Basic (NRWB), Unavoidable Annual Real Losses (UARL), Infrastructure Leakage Index (ILI) oraz wskaźniki jednostkowe strat na mieszkańca i kilometr sieci. Z uwagi na możliwy związek obciążenia i awaryjności sieci ze stratami wody wyznaczono wskaźnik intensywności uszkodzeń i wskaźnik hydraulicznego obciążenia sieci. Wyniki przeprowadzonej analizy pozwalają stwierdzić, że dzięki wszechstronnym działaniom przedsiębiorstwo w ostatnich latach zdecydowanie obniżyło straty wody. Obecnie większość wskaźników strat wody osiągnęło poziom uznany za dobry na tle danych krajowych a średni w odniesieniu do standardów krajów Europy zachodniej. W 2012 roku większość analizowanych wskaźników strat była na wysokim a nawet bardzo wysokim poziomie i świadczyła o wyższych niż średnie krajowe ubytkach wody z sieci. Spadek wskaźnika strat NRWB z 29% w 2012 roku do ok. 18% w 2018, spadek wartości wskaźnika ILI w tym okresie z 3,1 do 1,5-1,6 świadczy o skutecznym przeciwdziałaniu stratom wody. Obecnie wartość ILI według rygorystycznych kryteriów IWA świadczy o bardzo dobrym stanie sieci. Kolejnym wskaźnikiem, który uległ w analizowanym okresie poważnemu obniżeniu jest RLB2. W 2012 wartość jego była ponad dwukrotnie wyższa niż obecnie. Natomiast na średni stan sieci wskazuje jednostkowy wskaźnik strat wody na mieszkańca, który wynosił 52,80 w 2012 roku a obecnie ok. 23,07 dm3/(mieszkańca/dobę). Bardzo niskie wartości wskaźnika intensywności uszkodzeń sieci wodociągowej wskazują na mało znaczący wpływ awarii na straty wody przy założeniu, że Zakład szybko reaguje i usuwa stwierdzone wycieki i nie występują awarie nieujawnione. Analiza i ocena na przestrzeni lat licznych wskaźników strat wody przedstawiona w artykule świadczy o skuteczności przyjętych strategii ograniczania wycieków w systemie dystrybucji. Należy podkreślić, że przedsiębiorstwo od kilku lat prowadzi wszechstronne, kompleksowe działania zmierzające do ograniczania strat wody.

Źródło:

Rocznik Ochrona Środowiska; 2019, Tom 21, cz. 2; 1021-1039
1506-218X

Pojawia się w:

Rocznik Ochrona Środowiska

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 22.

Tytuł:

Flooded wetlands mapping from Sentinel-2 imagery with spectral water index : a case study of Kampinos National Park in central Poland

Autorzy:

Solovey, Tatiana

Powiązania:

https://bibliotekanauki.pl/articles/2059679.pdf

Data publikacji:

2020

Wydawca:

Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy

Tematy:

remote sensing
Sentinel-2
flooded wetlands mapping
Modified Normalised Difference Water Index
MNDWI
Normalised Difference Pond Index
NDPI
Normalised Difference Turbidity Index
NDTI

Opis:

Flood monitoring of wetlands and floodplains is a new issue in remote sensing, as compared to the mapping of open water bodies. The method based on spectral water indices, calculated on the basis of green, red and shortwave infrared bands, is one of the most popular methods for the recognition of a water body in multispectral images. The recently introduced Sentinel-2 satellite can provide multispectral images with high spatial resolution. This new data set is potentially of great importance for flood mapping, due to its free access and the frequent revisit capabilities. In this study, three popular water indices (Modified Normalized Difference Water Index, Normalized Difference Pond Index and Normalized Difference Turbidity Index) were used. The efficiency of the proposed method was tested experimentally using the Sentinel-2 image for the Kampinos National Park in Poland. The experiment compared four extraction algorithms including three based on individual water indicators and one on a combination of them. The results showed that the 10-metre false colour composite produced significantly improved the recognition of flooding in wetland areas by comparison with single spectral water indices. In this way, flooded wetlands were mapped based on the Sentinel-2 data set for the years 2017-2018.

Źródło:

Geological Quarterly; 2020, 64, 2; 492--505
1641-7291

Pojawia się w:

Geological Quarterly

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 23.

Tytuł:

Analysis of Mariupol Metallurgical Enterprises Influence on Ecological State of Surface Waters
Analiza wpływu zakładów metalurgicznych w Mariupolu na stan ekologii wód powierzchniowych

Autorzy:

Dan, O.
Neverova-Dziopak, E.
Butenko, E.
Kapustin, A.

Powiązania:

https://bibliotekanauki.pl/articles/385512.pdf

Data publikacji:

2017

Wydawca:

Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH

Tematy:

metalurgia
woda
ścieki
wskaźnik zanieczyszczenia wody
metallurgy
surface water
wastewater
Water Pollution Index

Opis:

This paper deals with the problem of environmental impact of metallurgical enterprises on ecological state and water quality of the Kalchyk and Kalmius rivers and the coastal zone of the Sea of Azov (Ukraine). These metallurgical enterprises Azovstal Iron & Steel Works and Ilyich Iron and Steel Works are situated in Mariupol city within the catchment area of the examined water bodies.
W artykule przedstawiono analizę wpływu zakładów hutniczych na stan ekologiczny i jakość wody rzek Kalczyk i Kalmius oraz strefy przybrzeżnej Morza Azowskiego. Zakłady hutnicze Azovstal Iron & Steel Works oraz Ilyich Iron and Steel Works znajdują się w Mariupolu i są usytuowane w zlewisku badanych akwenów wodnych.

Źródło:

Geomatics and Environmental Engineering; 2017, 11, 1; 25-31
1898-1135

Pojawia się w:

Geomatics and Environmental Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 24.

Tytuł:

Assessment of Water Quality and Pollution Index in Coastal Waters of Mimika, Indonesia

Autorzy:

Tanjung, Rosye Hefmi Rechnelty
Hamuna, Baigo
Alianto, -

Powiązania:

https://bibliotekanauki.pl/articles/952457.pdf

Data publikacji:

2019

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

water quality
water pollution index
physicochemical parameters
quality standards
marine biota
Mimika waters

Opis:

A good water quality is essential to sustaining the life of the organisms. The determination of water quality is needed as a direction to monitoring the water pollution. The purpose of this study is to examine the quality of the water and to determine the water pollution index based on the physicochemical parameters in Mimika waters, Indonesia. The sampling of water quality was carried out in October 2016 at six stations (Moga, Puriri, Inaoga, Keakwa, Atuka and Pomako waters). Then, the results were compared with the standard of sea water quality for biota marine based on the Decree of the Minister of Environment No. 51 year 2004. This study showed that the physicochemical parameters of the waters, such as water turbidity, BOD, NH3 and heavy metals (Hg, As, Cd, Pb, Cu, Zn, Ni and Cr), are still appropriate to the biota marine in all study stations. However, there is a parameter for which the quality standards were exceed in all locations, including water salinity for coral and seagrass, NO3, PO4 and H2S. The result of pollution index calculation at coastal waters Mimika are classified as lightly polluted (Keakwa and Pomako waters), and moderately polluted (Moga, Puriri, Inaoga and Atuka waters) with the pollution index values of 3.51 to 6.95. It is important to notice that the parameters of quality standards which had been exceed such as NO3, PO4 and H2S are the environmental parameter for nutrient elements and can trigger eutrophication in the waters.

Źródło:

Journal of Ecological Engineering; 2019, 20, 2; 87-94
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 25.

Tytuł:

Utilization of environmetric & index methods as water quality comparative assessment tools focusing on heavy metal content

Autorzy:

Boyacioglu, H.

Powiązania:

https://bibliotekanauki.pl/articles/204558.pdf

Data publikacji:

2012

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

cluster analysis
factor analysis
heavy metal
pollution fingerprint
water quality index

Opis:

In the study suitability of water quality index approach and environmetric methods in fi ngerprinting heavy metal pollution as well as comparison of spatial variability of multiple contaminants in surface water were assessed in the case of The Gediz River Basin, Turkey. Water quality variables were categorized into two classes using factor and cluster analysis. Furthermore, soil contamination index was adapted to water pollution index and used to fi nd out the relative relationship between the reference standards and the current situation of heavy metal contamination in water. Results revealed that surface water heavy metal content was mainly governed by metal processing, textile and tannery industries in the region. On the other hand, metal processing industry discharges mainly degraded quality of water in Kemalpasa and Menemen. Furthermore, Kemalpasa region has been heavily affected from tannery and textile industries effl uents. Moreover, pollution parameters have not been infl uenced by changes in physical factors (discharge and temperature). This study indicated the effectiveness of water quality index approach and statistical tools in fi ngerprinting of pollution and comparative assessment of water quality. Both methods can assist decision makers to determine priorities in management practices.

Źródło:

Archives of Environmental Protection; 2012, 38, 3; 17-28
2083-4772
2083-4810

Pojawia się w:

Archives of Environmental Protection

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 26.

Tytuł:

Evaluation of groundwater in aluminium slag disposal area

Autorzy:

Putranto, Thomas Triadi
Febriane, Wenny

Powiązania:

https://bibliotekanauki.pl/articles/27312652.pdf

Data publikacji:

2023

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

aluminium slag waste
geospatial analysis
heavy metals pollution index
multivariate analysis
water quality index

Opis:

Aluminium slag waste is a residue from aluminium recycling activities, classified as hazardous waste so its disposal into the environment without processing can cause environmental problems, including groundwater pollution. There are 90 illegal dumping areas for aluminium slag waste spread in the Sumobito District, Jombang Regency. This study aims to evaluate the quality of shallow groundwater surrounding aluminium slag disposal in the Sumobito District for drinking water. The methods applied an integrated water quality index (WQI) and heavy metal pollution index (HPI), multivariate analysis (principal component analysis (PCA) and hierarchical clustering analysis (HCA)), and geospatial analysis for assessing groundwater quality. The field campaign conducted 40 groundwater samples of the dug wells for measuring the groundwater level and 30 of them were analysed for the chemical contents. The results showed that some locations exceeded the quality standards for total dissolved solids (TDS), electrical conductivity (EC), and Al2+ . The WQI shows that 7% of dug well samples are in poor drinking water condition, 73% are in good condition, and 20% are in excellent condition. The level of heavy metal contamination based on HPI is below the standard limit, but 13.3% of the water samples are classified as high contamination. The multivariate analysis shows that anthropogenic factors and natural sources/geogenic factors contributed to shallow groundwater quality in the study area. The geospatial map shows that the distribution of poor groundwater quality is in the northern area, following the direction of groundwater flow, and is a downstream area of aluminium slag waste contaminants.

Źródło:

Journal of Water and Land Development; 2023, 57; 78--90
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 27.

Tytuł:

Analysis of Surface Water Quality of Four Rivers in Jayapura Regency, Indonesia: CCME-WQI Approach

Autorzy:

Tanjung, Rosye Hefmi Rechnelty
Yonas, Marcelino Novryanto
Suwito, -
Maury, Hendra Kurniawan
Sarungu, Yulius
Hamuna, Baigo

Powiązania:

https://bibliotekanauki.pl/articles/2025813.pdf

Data publikacji:

2021

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

CCME-WQI
water quality index
physicochemical
heavy metal
microbiological
Jayapura Regency

Opis:

In Indonesia, the river water quality has been determined based on Government Regulation of the Republic of Indonesia No. 22 of 2021. This study aimed to determine the quality of surface water from the Damsari, Jabawi, Kleblow, and Komba Rivers in Jayapura Regency based on the monitoring data from 2016 to 2019. The CCME-WQI method is used to determine the status of rivers based on river water quality standards (class 1 to class 4). The results of the study showed that the parameters of water temperature, TDS, pH, $NH_3, NO_3^-, SO_4^-2$, surfactant, oil/grease, Cr-(IV), Mn, Fe, Fecal Coliform, and Total Coliform were still in accordance with the quality standard. Meanwhile, TSS, COD, BOD, Total Phosphate, Hg, and Ni have exceeded the water quality standard, where the dominant pollutant source is an anthropogenic waste. On the basis of the WQI average value, the four rivers are not suitable as a source of drinking water (Poor-Marginal; 41.33 – 58.25). The Jabawi River can be used as a recreational facility, but it must be under special management (Fair; 69.75), while the other three rivers are not suitable (Marginal; 52.00 – 61.67). The Jabawi and Komba Rivers are in the Fair category (75.50 and 69.33) to support aquatic life, while the Damsari and Kleblow Rivers are in the Marginal category (59.00 and 61.25). The water quality of the four rivers is very good and suitable to be used as a water source for irrigation (Good category; 80.00 – 88.00). The strategies for controlling river water pollution and increasing the role of the government, stakeholders, and the community are needed.

Źródło:

Journal of Ecological Engineering; 2022, 23, 1; 73-82
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 28.

Tytuł:

Assessment of water quality Index for groundwater in Ado Ekiti, Nigeria

Autorzy:

Ibe, P. I.
Aigbedion, I. P.
Marcellinus, M.
Okoli, F. U.
Sola, A. B.

Powiązania:

https://bibliotekanauki.pl/articles/1078083.pdf

Data publikacji:

2019

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Ado Ekiti
ArcGIS 10.3
Groundwater
mapping
water quality index
well samples

Opis:

This research focuses on the ground water quality index in Ado-Ekiti State, Nigeria. Groundwater sample wells were randomly collected and their spatial locations captured using a handheld GPS. Water samples were taken from 45 wells and their physio-chemical properties were analyzed in the laboratory. Spatial distribution maps of the water quality parameters were then developed. Herein, the Kriging method of interpolation from geospatial analyst wizard in Esri ArcGIS software was deployed in the generation of thematic maps of water quality parameters. A drinking water quality index was subsequently developed to describe the overall quality of groundwater in the study area. Laboratory analysis of 34 wells showed water of acceptable use as it conforms to WHO standard, while 11 wells were found to have unsuitable water for domestic use. The results further show spatial variation in the water quality. The south central depicts poor water quality, fair water quality in the south-east, while the North, north east, north-west down to the south west depicted the best water quality.

Źródło:

World News of Natural Sciences; 2019, 22; 93-101
2543-5426

Pojawia się w:

World News of Natural Sciences

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 29.

Tytuł:

Evaluation of Spatio-Temporal Changes in Water Quality in the Middle Section of the Shatt Al-Arab River, Southern Iraq

Autorzy:

Moyel, Mohammad Salim
Akbar, Manal Mohammad
Hussain, Najah Abood

Powiązania:

https://bibliotekanauki.pl/articles/24201725.pdf

Data publikacji:

2023

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

Shatt al-Arab river
middle section
spatio-temporal change
water quality index

Opis:

The Shatt al-Arab river is the main water source in the Basrah province, subjected to significant environmental and hydrological changes that have led to the complete degradation of its ecosystem, particularly the middle section. Nineteen water quality variables were selected to assess spatio-temporal changes in the middle section. Eight variables were chosen with the most significant impact on the Shatt al-Arab River water quality in calculating the water quality index (WQI). These variables were measured every month from December 2020 to November 2021 at five observation stations (Abu-Flous, Mhela, Baradeyea and Maqal) located on the main river and one on the Karmat Ali canal, which connects the Shatt al-Arab River with east Hammar marsh. The study was divided into two seasons of the year, the wet season (December 2020 – May 2021) and the dry season (July 2021 – November 2021), in the calculation of the WQI and its annual calculation. The results of the current study show deterioration in the values of most water quality variables, particularly those related to dissolved salts and organic and bacterial pollution. Water quality was also classified as poor on the WQI scale at all stations for the duration of the study. The results of the WQI indicated the deterioration in the quality of the water middle section, particularly during dry season. The degradation of the waters of the middle section of the Shatt al-Arab River is due to two main factors: increase salinity and organic pollution. In general, the Shatt al-Arab River and the middle section in particular, need comprehensive management, including a clear and expeditious plan to identify and address the degradation of the river’s environment, which has a great importance to all residents of the Basrah province.

Źródło:

Journal of Ecological Engineering; 2023, 24, 4; 297--311
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 30.

Tytuł:

Water Quality Classification by Integration of Attribute-Realization and Support Vector Machine for the Chao Phraya River

Autorzy:

Sillberg, Chalisa Veesommai
Kullavanijaya, Pratin
Chavalparit, Orathai

Powiązania:

https://bibliotekanauki.pl/articles/1955579.pdf

Data publikacji:

2021

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

environmental data analysis
machine learning
SVM
support vector machine
water quality index
WQI

Opis:

The water quality index (WQI) is an essential indicator to manage water usage properly. This study aimed at applying a machine learning-based approach integrating attribute-realization (AR) and support vector machine (SVM) algorithm to classify the Chao Phraya River’s water quality. The historical monitoring dataset during 2008-2019 including biological oxygen demand (BOD), conductivity (Cond), dissolved oxygen (DO), faecal coliform bacteria (FCB), total coliform bacteria (TCB), ammonia (NH3-N), nitrate (NO3-N), salinity (Sal), suspended solids (SS), total nitrogen (TN), total dissolved solids (TDS), and turbidity (Turb), were processed via four studied steps: data pre-processing by means substituting method, contributing parameter evaluation by recognition pattern study, examination of the mathematic functions for quality classification, and validation of obtained approach. The results showed that NH3-N, TCB, FCB, BOD, DO, and Sal were the main attributes contributing orderly to water quality classification with confidence values of 0.80, 0.79, 0.78, 0.76, 0.69, and 0.64, respectively. Linear regression was the most suitable function to river water data classification than Sigmoid, Radial basis and Polynomial. The different number of attributes and mathematic functions promoted the different classification performance and accuracy. The validation confirmed that AR-SVM was a potent approach application to classify river water’s quality with 0.86-0.95 accuracy when applied three to six attributes.

Źródło:

Journal of Ecological Engineering; 2021, 22, 9; 70-86
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 31.

Tytuł:

Simulating the effects of irrigation scheduling on cowpea yield

Autorzy:

Adekalu, K.O.

Powiązania:

https://bibliotekanauki.pl/articles/25852.pdf

Data publikacji:

2006

Wydawca:

Polska Akademia Nauk. Instytut Agrofizyki PAN

Tematy:

rainy season
soil water
dry season
soil
yield
water use index
modelling
cow pea
irrigation scheduling
Nigeria

Źródło:

International Agrophysics; 2006, 20, 4
0236-8722

Pojawia się w:

International Agrophysics

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 32.

Tytuł:

CropSyst model for wheat irrigation water management with fresh and poor quality water
Model CropSyst do zarządzania nawadnianiem pszenicy wodą słabej jakości

Autorzy:

Ouda, S. A.
Noreldin, T.
Mounzer, O. H.
Abdelhamid, M. T.

Powiązania:

https://bibliotekanauki.pl/articles/292497.pdf

Data publikacji:

2015

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

agricultural drainage water
deficit irrigation
fresh water
water stress index
deficyt nawodnień
indeks stresu wodnego
wody drenarskie
wody naturalne

Opis:

CropSyst model can be used as irrigation water management tool to increase wheat productivity with poor quality water. The objective of this study was to calibrate CropSyst model for wheat irrigated with fresh and agricultural drainage water. To do so, three field experiments were conducted during three successive seasons in Nubaria Agricultural Research Station, Egypt representing the newly reclaimed calcareous soils. In the first season the treatments were 100% crop evapotranspiration (ETc) of fresh water (FW) and 100% ETc of agricultural drainage water (DW), while in the second and the third seasons, the treatments were 100% ETc of FW, 100% ETc of DW, 120% ETc of DW and 130% ETc of DW. From these results one can concluded that deducting 5% of the applied water to all treatments reduced yield by 3, 5 and 7% in the first, second and third growing season, respectively as a result of heat stress existed in the 2^nd and 3^rd seasons during reproductive phase. Furthermore, deducting 5% of the applied water from all treatments in the vegetative phase only resulted in lower yield losses. Thus, using CropSyst model could guide us to when we could reduce the applied irrigation water to wheat to avoid high yield losses.
Model CropSyst może znaleźć zastosowanie jako narzędzie w zarządzaniu systemem nawodnień wodą niskiej jakości w celu zwiększenia produkcji pszenicy. Przedmiotem przedstawionych badań było skalibrowanie modelu CropSyst do nawodnień pszenicy wodą naturalną i wodą z rolniczych systemów drenarskich. W tym celu przeprowadzono trzy eksperymenty polowe w trzech kolejnych sezonach realizowane w Nubaria Agricultural Research Station w Egipcie na ostatnio zmeliorowanych glebach wapiennych. W pierwszym sezonie warianty eksperymentalne obejmowały: 100% ewapotranspiracji (ETc) wody naturalnej (FW) i 100% ETc wody z systemów drenarskich (DW); w drugim i trzecim sezonie wariantami eksperymentalnymi były: 100% ETc z użyciem FW, 100% ETc z użyciem DW oraz 120% i 130% ETc z zastosowaniem DW. Uzyskane wyniki dają podstawy do wnioskowania, że zmniejszenie ilości wody zastosowanej do nawodnień o 5% we wszystkich wariantach zmniejszyło plony o 3, 5 i 7% odpowiednio w pierwszym, drugim i trzecim sezonie wskutek stresu termicznego, jaki wystąpił w drugim i trzecim sezonie w fazie reprodukcji. Ponadto, zmniejszenie ilości stosowanej wody o 5% jedynie w trakcie fazy wegetatywnej skutkowało mniejszymi stratami plonu. Podsumowując, zastosowanie modelu CropSyst umożliwia nam stwierdzenie, kiedy można ograniczyć ilość wody do nawodnień i uniknąć znaczących strat w plonie pszenicy.

Źródło:

Journal of Water and Land Development; 2015, 27; 41-50
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 33.

Tytuł:

Klasyfikacja stanu przybrzeżnych wód morskich na Ukrainie na przykładzie Morza Azowskiego w rejonie Mariupola
Classification of the State of narine coastal waters in Ukraine in the example of the Sea of Azov in the Mariupol Region

Autorzy:

Neverova-Dziopak, E.
Dan, O.

Powiązania:

https://bibliotekanauki.pl/articles/1203874.pdf

Data publikacji:

2018

Wydawca:

Polskie Zrzeszenie Inżynierów i Techników Sanitarnych

Tematy:

Morze Azowskie
huta
ścieki chłodnicze
ścieki technologiczne
ocena stanu wód
ocena oddziaływania na środowisko
wskaźnik jakości wody
wskaźnik zanieczyszczenia wody
Sea of Azov
steelworks
cooling wastewater
technological waste water
water status assessment
environmental impact assessment
Water Quality Index
Water Pollution Index
Integrated Ecological State Index

Opis:

Morze Azowskie jest najmniejszym i najpłytszym morzem na świecie o małym zasoleniu. Takie właściwości powodują jego podatność na degradację pod wpływem działalności antropogenicznej. Jednym z głównych źródeł zanieczyszczeń Morza Azowskiego jest huta „Azovstal” w Mariupolu (Ukraina). Negatywny wpływ huty jest związany przede wszystkim z dużą ilością odprowadzanych do morza ścieków chłodniczych i technologicznych. W pracy przedstawiono wyniki oceny oddziaływania ścieków z huty na jakość wody morskiej i sytuację ekologiczną w strefie ich odprowadzania, dokonanej na podstawie metod stosowanych w Ukrainie oraz obowiązujących standardów jakości wód powierzchniowych. Kompleksową ocenę dokonano na podstawie wartości trzech wskaźników jakości wody morskiej – wskaźnika jakości wody (WJW), wskaźnika zanieczyszczenia wody (WZW) oraz zintegrowanego wskaźnika stanu ekologicznego (ZWSE), a także z uwzględnieniem tak zwanej zasady sumowania. Na podstawie wyników przeprowadzonej oceny wykazano, że odprowadzanie ścieków z huty „Azovstal” prowadzi do znacznego wzrostu stopnia zanieczyszczenia wód w strefie przybrzeżnej Morza Azowskiego, co stanowi zagrożenie ekosystemu morskiego i ogranicza wszystkie rodzaje użytkowania wody.
The Sea of Azov is the smallest and shallowest sea in the world with low salinity. Such properties determine its susceptibility to degradation due to anthropogenic activities. The Azovstal Iron & Steel Works in Mariupol (Ukraine) is one of the main sources of pollution of the Azov Sea. Adverse impact of the steelworks is associated primarily with the large amount of technological and cooling wastewater discharged into the sea. The paper presents the impact assessment results of wastewater discharge on the sea water quality and the ecological conditions in the discharge zone. The assessment was performed using local Ukrainian methodologies as well as applicable surface water quality standards. The comprehensive assessment was based on the three numerical integrated indicators of sea water quality: the Water Quality Index (WJW), the Water Pollution Index (WZW), the Integrated Ecological State Index (ZWSE), and the so called principle of aggregation. Based on the assessment results it was demonstrated that the wastewater discharge from the Azovstal Iron & Steel Works leads to significant increase in water pollution in the coastal zone which brings threat to the marine ecosystem and limits all types of water consumption.

Źródło:

Ochrona Środowiska; 2018, 40, 3; 29-34
1230-6169

Pojawia się w:

Ochrona Środowiska

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 34.

Tytuł:

Rzeczywiste zużycie wody w warunkach wiejskich na przykładzie wybranych wodociągów
Real water consumption in chosen rural water supply systems

Autorzy:

Orzechowska, M.

Powiązania:

https://bibliotekanauki.pl/articles/399949.pdf

Data publikacji:

2011

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

wiejskie systemy zaopatrzenia w wodę
zużycie wody
wskaźniki zapotrzebowania na wodę
rural water supply systems
water consumption
water requirement index

Opis:

W referacie przedstawiono tendencje, jakie zaobserwowano na przestrzeni ostatnich lat, w zmianach zużycia wody na terenach wiejskich oraz opisano przyczyny tych zmian. Określono cele, na jakie jest zużywana woda, jak również czynniki wpływające na wielkość jej poboru. Przestawiono także wyniki badań eksploatacyjnych rzeczywistego zużycia wody, przeprowadzonych na grupie wybranych wodociągów wiejskich z terenu województwa podlaskiego.
The following article is a result of research of chosen rural water supply systems in Podlaskie voivodeship, carried out at the Białystok Technical University. The scope of the article covers characterization of water consumption changes, quantity of water production and water sale, results of statistical analysis of water requirement index, on the basis of operating data.

Źródło:

Inżynieria Ekologiczna; 2011, 26; 206-212
2081-139X
2392-0629

Pojawia się w:

Inżynieria Ekologiczna

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 35.

Tytuł:

The Spatial Distribution of Heavy Metal Lead and Cadmium Pollution and Coliform Abundance of Waters and Surface Sediment in Demak

Autorzy:

Tjahjono, A.
Suwarno, D.

Powiązania:

https://bibliotekanauki.pl/articles/124961.pdf

Data publikacji:

2018

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

Demak waters
spatial distribution of Pb
spatial distribution of Cd
surface water
sediment
abundance of Coliform
water pollution index

Opis:

Various activities such as farming, industry, household waste, fish pond, and fishery can possibly affect the estuarine and coastal ecosystem. Demak waters, located to the east of Tanjung Emas Semarang, become an influential element of fishery industry that mostly produces anchovies and shrimps. This research was aimed at (1) analyzing the spatial distribution of heavy metal Pb and Cd in the surface water and sediment; and (2) investigating the abundance of coliform in Demak waters. Moreover, in this research, water pollution index was also analyzed and compared to other polluted water areas. It was found that the Pb content ranged from 0.6037 to 0.6647 mg·1^–1 whereas the Cd content ranged from 0.064 to 0.1707 mg·1^–1. Both lead and cadmium contents had surpassed the water quality standard. The Pb content in sediment ranged from 0.563 to 0.6823 mg·kg^-1 whereas the Cd content reached 0.0047 to 0.0577 mg·kg^-1. It showed that this sediment was not polluted by Pb and Cd. The analysis of water pollution index revealed that the pollution level found in Morosari, Rejo, Tuntang, and Lohbener estuary was low. On the other hand, Wedung and Serang estuary were heavily polluted. Compared to some previous studies, most of Pb and Cd contents in Demak waters were greater. However, lead and cadmium content in sediment was lower.

Źródło:

Journal of Ecological Engineering; 2018, 19, 4; 43-54
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 36.

Tytuł:

The Assessment of the Surface Water Quality Using the Water Pollution Index: A Case Study of the Timok River (The Danube River Basin), Serbia

Autorzy:

Brankov, J.
Milijašević, D.
Milanović, A.

Powiązania:

https://bibliotekanauki.pl/articles/204919.pdf

Data publikacji:

2012

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

zanieczyszczenia organiczne
wskaźnik zanieczyszczenia wody
Serbia
Timok River
Borska Reka River
Water Pollution Index
mining
organic pollution

Opis:

The Timok River (202 km long, 4547 km2 basin area) is located in East Serbia. It is a right tributary of the Danube River and one of the most polluted watercourses in Serbia. On the basis of the data provided by the Republic Hydrometeorological Service of Serbia, the paper presents an analysis of water quality and pollution using the combined physico-chemical WPI index (Water Pollution Index) calculated for two periods - 1993-96 and 2006-2009 at four hydrological stations: Zaječar-Gamzigrad (Crni Timok River), Zaječar (Beli Timok River), Rgotina (Borska Reka River) and Čokonjar (Timok River). The following parameters were taken into consideration: dissolved O2, O2 saturation, pH, suspended sediments, Five Day Biochemical Oxygen Demand (BOD5), Chemical Oxygen Demand (CODMn), nitrites, nitrates, orthophosphates, ammonium, metals (Cu, Fe, Mn, Hg, Ni, Zn, Cd), sulphates and coliform germs. The average WPI values were calculated for the observed periods based on the comparison of the annual average values of the listed parameters and defined standard values for the I water quality class (according to the Regulation on the Hygienic Acceptability of Potable Water of the Republic of Serbia). The highest pollution degree was recorded in the Borska Reka River, where heavy metal levels (especially manganese and iron) were significantly increased. These metals are indicators of inorganic pollution (primarily caused by copper mining). Also, increased values of the organic pollution indicators (ammonium, coliform germs, Five-Day Biological Oxygen Demand - BOD5) in the Borska Reka and the Timok rivers are the result of uncontrolled domestic wastewater discharge.

Źródło:

Archives of Environmental Protection; 2012, 38, 1; 49-61
2083-4772
2083-4810

Pojawia się w:

Archives of Environmental Protection

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 37.

Tytuł:

Use of Quality and Organic Pollution Indices in The Physico-Chemical Quality Assessment of Kébir Wadi East Surface Waters (Region of El Taref, Extreme North East Algeria)

Autorzy:

Bahroun, Sofia
Nouri, Nada
Smida, Bouthaina

Powiązania:

https://bibliotekanauki.pl/articles/27314708.pdf

Data publikacji:

2022

Wydawca:

Uniwersytet Zielonogórski. Oficyna Wydawnicza

Tematy:

surface water
WQI
water quality index
OPI
organic pollution index
urban wastes
seasonal variation
North East Algeria
Kébir wadi East
wody powierzchniowe
wskaźnik jakości wody
wskaźnik zanieczyszczenia organicznego
odpady miejskie
Algieria Północno-Wschodnia

Opis:

Surface water is subject to strong anthropogenic pressures caused by the development and the extension of the agricultural activities and also by the industrial and domestic activities. Pollution is a major environmental problem due to discharges into rivers and the excessive use of agricultural fertilizers add to that the discharges from urban and industrial sources. The aim of this study is to assess the quality and the state of the organic pollution of surface water in the Kébir wadi east, based on the Water Quality Index (WQI) and the Organic Pollution Index (OPI) during six sampling campaigns carried out between April and September of the year 2011. Seven stations were studied along the Kébir wadi east downstream from the Mexa Dam. The results are visualized by the use of GIS through making thematic maps. They revealed that half of the stations show excellent to good water quality and moderated organic pollution except the stations S3, S6 and S4, that have poor water quality and high pollution at S3 and S6 respectively, and non-potable water with very high organic pollution at S4. The anthropogenic environmental deterioration recorded in the wadi is the result of the use of nitrogen and phosphate agricultural fertilizers and especially, the discharge of untreated domestic and industrial wastewater from neighbouring agglomerations. The seasonal variation remains discrete and reflects a slight tendency to the deterioration of the waters of El Tarf region during the low waters of the summer period.

Źródło:

Civil and Environmental Engineering Reports; 2022, 32, 1; 43--58
2080-5187
2450-8594

Pojawia się w:

Civil and Environmental Engineering Reports

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 38.

Tytuł:

Pollution and health risk assessment of water quality: a case study in Mohammedia prefecture in Morocco

Autorzy:

El morabet, R.
Berhazi, L.
Khan, R. A.
Bouhafa, S.
Khan, N. A.
Hakh, T.
Romaniv, A.

Powiązania:

https://bibliotekanauki.pl/articles/2055750.pdf

Data publikacji:

2022

Wydawca:

Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach

Tematy:

water quality assessment
water pollution index
ecological risk
non-carcinogenic risk
carcinogenic risk
ocena jakości wody
wskaźnik zanieczyszczenia wody
ryzyko ekologiczne
ryzyko nierakotwórcze
ryzyko rakotwórcze

Opis:

Purpose: Water is vital for the sustenance of every life form. Urbanization, growing population and industrial development has led to exploitation of water resources globally. This study assesses quality of water resources of Mohammedia prefecture. Design/methodology/approach: The water quality analysis was carried out based on physio-chemical and heavy metal concentrations. The physio-chemical analysis comprised of status of concentration, overall quality and water pollution index evaluation. The heavy metal evaluation consisted of Ecological Risk Index, non-carcinogenic risk and carcinogenic risk assessment. Findings: The landfill near Ben Nfifikh River reported insignificant (WPI<1) – low level of pollution (>1≤1.5) for surface and groundwater points. However, the groundwater for Zenata region was found to pose both carcinogenic (CRt > 0.0001, range 0.4-35.31) and non-carcinogenic risks (HQ>1, range 6 -34) of higher degree rendering it unfit for human consumption. Hence, this study concludes that groundwater resources should not as water supply; instead, Oud El Maleh River can serve as surface water source for meeting requirements of Zenata region. Research limitations/implications: The data obtained can be categorized as landfill area near river Nfifikh and landfill area near river El Maleh. Both areas have been investigated for groundwater and surface water quality assessment. Practical implications: This study demonstrates the need to study the characteristics of groundwater (depth, flow rate, water renewal, etc.) before arranging a waste dump. This problem is especially relevant for arid countries, since residents experience a shortage of water, as well as a lack of rainfall provides a weak renewal of groundwater, which can contribute to the accumulation of a higher concentration of carcinogens in groundwater and provide a high risk to public health. If policymakers in arid countries and decision-makers have effective water quality maps, then the country can be more efficiently managed water resources without risking the population. Originality/value: The current study is planned as a multi-stage, each of which is supposed to conduct field studies of groundwater and surface water quality with appropriate parameters, analysis of institutional reports and related scientific studies in order to create an effective water quality map for rational water use.

Źródło:

Journal of Achievements in Materials and Manufacturing Engineering; 2022, 110, 2; 67--85
1734-8412

Pojawia się w:

Journal of Achievements in Materials and Manufacturing Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 39.

Tytuł:

Water quality index assessment of Koudiat Medouar Reservoir, northeast Algeria using weighted arithmetic index method
Ocena indeksu jakości wody w zbiorniku Koudiat Medouar (północnowschodnia Algieria) z użyciem ważonego indeksu arytmetycznego

Autorzy:

Bouslah, S.
Lakhdar, D.
Larbi, H.

Powiązania:

https://bibliotekanauki.pl/articles/292652.pdf

Data publikacji:

2017

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

assessment
Koudiat Medouar Reservoir
physicochemical parameters
water quality index
weighted arithmetic index
indeks jakości wody
ocena
parametry fizyczne i chemiczne
ważony indeks arytmetyczny
zbiornik zaporowy Koudiat Medouar

Opis:

Water quality index (WQI) is a mathematical tool used to transform large quantities of water quality data into a single number which present water quality level. The aim of the present study is to evaluate the quality of Koudiat Medouar Dam in Batna (Algeria) to assess its suitability for drinking purposes. Samples were assessed for ten (10) physicochemical settings namely pH, electrical conductivity, total hardness, nitrate, sulphate, chloride, calcium, magnesium, dissolved oxygen and turbidity. The calculation of WQI was done via weighted arithmetic index method. The WQI values ranged from 99.097 to 174.92 during 2015. It reflected that the water samples were in February in the range of very poor quality and ranged to be in unsuitable for drinking rang in the all other months. The WQI of the present study reveals dam water is contaminated and not suitable for drinking purpose without giving treatment.
Indeks jakości wody (WQI) jest matematycznym narzędziem używanym do transformacji dużej liczby danych o jakości wody w jedną liczbę, która charakteryzuje poziom jakości wody. Celem przedstawionych badań było określenie jakości wody w zbiorniku zaporowym Koudiat Medouar w Batna (Algieria), aby ustalić jej przydatność do celów spożywczych. W próbkach oceniano 10 parametrów fizycznych i chemicznych: pH, przewodność elektrolityczną, całkowitą twardość, stężenie azotanów, siarczanów, chlorków, wapnia, magnezu, rozpuszczonego tlenu i mętność. Obliczenia indeksu WQI wykonano metodą ważonego indeksu arytmetycznego. Wartości WQI zmieniały się od 99,097 do 174,92 w 2015 r. W lutym próbki wody cechowała bardzo zła jakość, a w pozostałych miesiącach woda nie nadawała się do picia. Indeks ustalony w niniejszych badaniach dowodzi, że woda w zbiorniku zaporowym jest zanieczyszczona i nie nadaje się do celów spożywczych bez uprzedniego uzdatniania.

Źródło:

Journal of Water and Land Development; 2017, 35; 221-228
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 40.

Tytuł:

Phytocenological approach in biomonitoring of the state of aquatic ecosystems in Ukrainian Polesie

Autorzy:

Fedonyuk, Tetiana P.
Fedoniuk, Roman H.
Zymaroieva, Anastasiia A.
Pazych, Viktor M.
Aristarkhova, Ella O.

Powiązania:

https://bibliotekanauki.pl/articles/293038.pdf

Data publikacji:

2020

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

biodiversity
biomonitoring
macrophytes
Margalef index
Pielou index
Shannon index
Simpson index
surface water
water quality

Opis:

The results of a research into the scale and consequences of the degradation of aquatic ecosystems in Ukrainian Polesie have been detected in article, and the areas of increased anthropogenic pressure have been identified which greatly affect the condition and number of aquatic macrophytes. The biodiversity of sites with different anthropogenic load was evaluated using the biodiversity criteria. In the research, the structural and functional features of macrophytic species diversity within Teteriv River ecological corridor as a typical river landscape of Ukrainian Polesie were determined and described, the floristic composition was determined. Within the ecological zones, the number of species and their projective coverage in areas with different anthropogenic pressures within Teteriv River ecological corridor were determined. The basic criteria for the implementation of deferred biomonitoring based on the analysis of the dynamics of the species composition of the phytocoenoses of Teteriv River ecological corridor on the indicators of ecological stability and plasticity using the species-specific criteria, are: Margalef species richness index, Sørensen–Dice index, Shannon diversity index, Simpson’s index, and Pielou’s evenness index. Based on the results, correlation dependencies have been constructed, which will allow to obtain data on the stability of the development of aquatic ecosystems according to the data of species surveys. Interconnections between biodiversity indicators and indicators of surface water quality within the Ukrainian Polesie were found; they are the fundamental component of a long-term monitoring of the stability in the development of aquatic phytocenoses.

Źródło:

Journal of Water and Land Development; 2020, 44; 65-74
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 41.

Tytuł:

Zastosowanie satelitarnych wskaźników teledetekcyjnych do monitorowania uwilgocenia biomasy w uprawach miskanta olbrzymiego (Miscanthus x giganteus)
Application of satellite remote sensing indicators to monitor the moisture of biomass in giant miscanthus crops (Miscanthus x giganteus)

Autorzy:

Kubiak, Katarzyna
Kotlarz, Jan

Powiązania:

https://bibliotekanauki.pl/articles/883159.pdf

Data publikacji:

2019-09-05

Wydawca:

Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych

Tematy:

trawy
Poaceae
miskant olbrzymi
Miscanthus x giganteus
warunki meteorologiczne
fotosynteza C4
biomasa
wilgotnosc
zawartosc wody
teledetekcja
pomiary satelitarne
satelita Sentinel-2
C4 carbon fixation
Sentinel 2 satellite
weather conditions
water index
remote sensing

Opis:

Miskant olbrzymi (Miscanthus x giganteus) z powodu jego fizjologicznej adaptacji do ścieżki fotosyntezy C4 jest uważany za istotny gatunek upraw na cele energetyczne. Dostępność wody silnie wpływa na jego plony, a wysoki plon biomasy z jednostki powierzchni jest związany z miejscami, w których opady wynoszą co najmniej 762 mm rocznie. Celem pracy było wyznaczenie wskaźników teledetekcyjnych obrazujących zawartość wody w uprawach miskanta olbrzymiego za pomocą zobrazowań satelitarnych Sentinel 2 oraz określenie korelacji tych wskaźników z najpowszechniejszym wskaźnikiem teledetekcyjnym biomasy NDVI oraz z warunkami pogodowymi na wybranym terenie w latach 2016-2018. Analiza zależności warunków pogodowych i wartości teledetekcyjnych wskaźników wodnych w badanych uprawach wykazała dość silną ko-relację (ok +0,80) pomiędzy wskaźnikami wodnymi (m.in. NDWI, MSI, NDII, Water Index) a opadami oraz umiarkowaną ujemną korelację (ok -0,40) z temperaturą.
Miscanthus x giganteus due to its physiological adaptation to the C4 photosynthesis pathway is considered as an important species of the crop for energy purposes. The availability of water strongly affects its yield, and the high biomass yield per unit area is associated with places where rainfall is at least 762 mm per year. The work aimed to determine re-mote sensing indicators showing the water content in Miscanthus x giganteus cultivars using Sentinel 2 satellite imagery and to determine the correlation of these indicators with the most common remote-sensing NDVI biomass and weather conditions in a selected area in 2016-2018. Analysis of the relationship between weather conditions and remote sensing values of water indicators in the studied crops showed quite strong correlation (about +0.80) between water indicators (including NDWI, MSI, NDII, Water Index) and precipitation and moderate negative correlation (about -0.40) with tem-perature.

Źródło:

Technika Rolnicza Ogrodnicza Leśna; 2019, 3; 16-18
1732-1719
2719-4221

Pojawia się w:

Technika Rolnicza Ogrodnicza Leśna

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 42.

Tytuł:

Evaluation of cherry tomato yielding and fruit mineral composition after using of Bio-algeen S-90 preparation
Ocena plonowania i skladu mineralnego owocow pomidora drobnoowocowego po zastosowaniu preparatu Bio-algeen S-90

Autorzy:

Dobromilska, R
Mikiciuk, M.
Gubarewicz, K.

Powiązania:

https://bibliotekanauki.pl/articles/15861.pdf

Data publikacji:

2008

Wydawca:

Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza

Tematy:

cherry tomato
fruit
yielding
mineral composition
Bio-algeen S-90 preparation
application
vegetable
seaweed
bioelement content
water use efficiency index

Opis:

The aim of the experiments carried out in a high, polyethylene in the years 2004- -2006 was to examine the influence of the algae preparation Bio-algeen S-90 on yield, mineral composition of fruits, content of assimilatory pigments, intensity of assimilation and transpiration and photosynthetic water use efficiency index of the cherry tomato cv. Conchita F1. The results on tomato yields proved significant differences in total and marketable yield under the influence of Bio-algeen. The biggest total and marketable yields were obtained when plants were treated three times with Bio-algeen. Bio-algeen also caused increase in content of mineral components in cherry tomato fruits. Three- and fourfold sprays increased the content of total nitrogen, phosphorus, potassium, calcium, zinc, iron and nitrates. Treating tomato plants with the preparation increased the content of assimilatory pigments of tomato. Increase in a number of Bio-algeen sprays led to higher contents of total, a and b chlorophyll and carotenoids in leaves. Intensity of assimilation and transpiration of the plants and water use efficiency index depended on number of plants spraying with Bio-algeen. Plants sprayed two and three times with Bio-algeen were characterized by greater transpiration and assimilation intensity, but also by smaller efficiency of water use index.
Celem badań prowadzonych w wysokim tunelu foliowym, w latach 2004-2006, było określenie wpływu stosowania preparatu z alg morskich Bio-algeen S-90 na plon, skład mineralny owoców, zawartość barwników asymilacyjnych, intensywność asymilacji i transpiracji oraz wskaźnik efektywności wykorzystania wody w procesie fotosyntezy roślin pomidora drobnoowocowego odmiany Conchita Fj. Wykazano istotne różnice w plonie ogółem i handlowym pod wpływem traktowania roślin preparatem Bio-algeen S-90. Największy plon ogółem i handlowy owoców uzyskano w przypadku 3-krotnego oprysku preparatem. Preparat Bio-algeen wpłynął również na zwiększenie zawartości składników mineralnych w owocach pomidora drobnoowocowego. Opryskiwanie 3- i 4-krotne roślin zwiększyło po ziom azotu ogólnego, fosforu, potasu, wapnia, cynku, żelaza oraz azotanów. Traktowanie roślin preparatem zwiększyło zawartość barwników asymilacyjnych u pomidora. Zwiększanie liczby oprysków preparatem Bio-algeen wpłynęło na wyższą zawartość chlorofilu a, b i całkowitego oraz karotenoidów w liściach. Intensywność asymilacji i transpiracji roślin oraz wskaźnik efektywności wykorzystania wody zależał od liczby oprysków preparatem Bio- algeen. U roślin, które opryskiwano 2- i 3-krotnie, stwierdzono większą intensywność transpiracji i asymilacji, ale mniejszy wskaźnik efektywności wykorzystania wody.

Źródło:

Journal of Elementology; 2008, 13, 4; 491-499
1644-2296

Pojawia się w:

Journal of Elementology

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 43.

Tytuł:

The use of phytoplankton communities for assessment of water quality in the Wadaslintang Reservoir in Indonesia

Autorzy:

Piranti, Agatha S.
Wibowo, Dwi N.

Powiązania:

https://bibliotekanauki.pl/articles/946893.pdf

Data publikacji:

2020

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

algae
pollution level
Shannon-Wiener index
Storet index
water quality

Opis:

The use of phytoplankton as an indicator of water pollution is a promising tool for assessment of water quality. The purpose of this study was to determine whether diversity indices, including the species richness and diversity of phyto-plankton, could be used for reliable assessment of water quality in the Wadaslintang Reservoir in Indonesia. Surveys were conducted monthly at eight sites, from July 2019 to October 2019. Phytoplankton was collected during the day at 10:00 until approximately 15:00 in the euphotic zone. The parameters investigated were species richness and the abundance of phytoplankton, as well as water quality parameters listed in Government Regulation Number 82 of 2001. The level of pollution was represented biologically by the Shannon–Wiener diversity index and physicochemically by the STORET (storage and retrieval of water quality data) index. Moreover, the two indices were compared to determine whether a particular diversity index was more effective for assessment of this reservoir. The results showed that during the dry season, 22 taxa of phytoplankton were present, belonging to Cyanophyta, Chlorophyta, Chrysophyta, and Euglenophyta. During the wet season, 29 taxa were found, belonging to Cyanophyta, Chlorophyta, and Chrysophyta. Based on the Shannon-Wiener index and STORET index, water quality was better during the wet season than during the dry season. The results of water quality assessment using both indices were consistent, but the diversity index was a more sensitive indicator of pollution levels. Therefore, the Shannon–Wiener index is a useful tool for assessment of water quality in the Wadaslintang Reservoir.

Źródło:

Journal of Water and Land Development; 2020, 46; 170-178
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 44.

Tytuł:

The use of Allium cepa L. assay as bioindicator for the investigation of genotoxic effects of industrial waste water

Autorzy:

Rasgele, Pinar Goc

Powiązania:

https://bibliotekanauki.pl/articles/2073789.pdf

Data publikacji:

2021

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

Allium cepa assay
mitotic index
waste water

Opis:

In this study, genotoxic potential of industrial waste water (IWW) samples was investigated using Allium cepa assay. The root tips were treated with different IWW samples (A, B and C) for 48 hours. The effects of IWW on cytological effects were determined. It was found that all IWW samples significantly increased the percentage of total abnormality. Mitotic chromosomal abnormalities such as irregular metaphase, stickiness, c-mitosis, micronucleus, vagrant chromosomes and bridges were determined. Furthermore, a significant reduction for the mitotic index that is indicative of cellular toxicity was observed in root tips cells, which were treated with IWW samples. A. cepa assay can be used as useful tool for the detection of genotoxic and cytotoxic potential of IWWs.

Źródło:

Archives of Environmental Protection; 2021, 47, 4; 3--8
2083-4772
2083-4810

Pojawia się w:

Archives of Environmental Protection

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 45.

Tytuł:

Evaluation of Water Quality of the Siret River by Zooperiphyton Organisms

Autorzy:

Rylskyi, Olexandr F.
Dombrovskiy, Konstantin
Masikevych, Yurij
Masikevych, Andrew
Malovanyy, Myroslav

Powiązania:

https://bibliotekanauki.pl/articles/24202907.pdf

Data publikacji:

2023

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

water quality
zooperiphyton
ecological value
biotic index

Opis:

The extensive nature of natural resource use in the Siret River basin in recent years has led to a significant depletion of its water resources and deterioration of the ecological state of surface waters. The following paper presents the results of assessing the degree of water pollution of the Siret River. A number of biotic water quality indices were used for this purpose. In particular, the Trent Biotic Index (TBI) and the Biological Monitoring Working Party Index (BMWP), both of which use the density ratio of different macroinvertebrate taxa in the aquatic communities, and the Pantlé and Bucca saprobility index, which uses the absolute density and saprobility of indicator species of aquatic organisms. A comprehensive assessment of the aquatic ecosystem of the watercourse was carried out using the water pollution index (WPI). The biological indices were calculated on the basis of data on zooperiphyton communities formed on an artificial fibre media of the «VIYA» type. The VIYA fibre carrier was used for more accurate determination of the species composition and quantitative characteristics of zooperiphyton communities in the studied river sections. The TBI index ranged from 5 to 6 (which corresponds to a water quality assessment of 'satisfactory'). The BMWP index ranged from 8 (very poor) to 32 (good), and the saprobicity index from 1.52 to 1.95 (good water quality). The WPI index at the control sites in the Siret River ranged from 4.6 (which corresponds to a water quality assessment of 'polluted') to 8.1 (which corresponds to a water quality assessment of 'extremely polluted'). Significant differences in the results of the assessment by different biotic indices indicate that these indices cannot be used as indicators for an exhaustive assessment of water quality using zooperiphyton. They can only be used as relative indicators for comparing the state of water pollution at different locations. The values of hydrochemical indicators of water quality at two observation posts of the river were analysed. The maximum permissible concentrations of nitrite ions, ammonium ions and suspended solids in the control sections of the river were found to be exceeded.

Źródło:

Journal of Ecological Engineering; 2023, 24, 6; 294--302
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 46.

Tytuł:

Evaluation of soil physical quality in dominant series of calcareous soils in south-west of Iran

Autorzy:

Meskini-Vishkaee, Fatemeh
Jafarnejadi, Ali Reza
Mousavi-Fazl, Mohammad Hadi

Powiązania:

https://bibliotekanauki.pl/articles/2088190.pdf

Data publikacji:

2020

Wydawca:

Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej

Tematy:

aeration
macroporosity
soil available water
S index

Opis:

Calcareous soils are widely spread in arid and semiarid regions. Carbonates can affect soil quality by influencing soil pH, structure and soil available water. There are lots of calcareous soils in Iran and especially Khuzestan province, so, providing sustainable agriculture evaluating the soil quality is essential. This study was done to evaluate the soil physical quality in dominant calcareous soil series in Khuzestan province, Iran. Soil physical quality indicators, including Dexter's S index, air capacity, soil available water capacity, relative water capacity and macroporosity were calculated. The results showed that, based on Dexter's S index, only one calcareous soil series had a poor physical quality (S < 0.035). However, the simultaneous evaluation of different soil quality indicators showed that 56 % and 22 % of studied calcareous soil series had limited aeration and soil available water, respectively. While the weakest soil physical quality was related to the southeastern soil of Ahvaz, with both aeration and soil available water limitations. The results showed that the proper assessment of soil physical quality in calcareous soils requires considering more physical indicators than just Dexter's S index related to soil aeration condition including air capacity and macroporosity.

Źródło:

Polish Journal of Soil Science; 2020, 53, 2; 225-243
0079-2985

Pojawia się w:

Polish Journal of Soil Science

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 47.

Tytuł:

Comparison Study of Water Quality Produced from a Conventional Water Treatment Plant and a Number of Compact Units

Autorzy:

Al Saleh, Hadeel Ali

Powiązania:

https://bibliotekanauki.pl/articles/1838410.pdf

Data publikacji:

2021

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

water quality
compact unit
quality index
purification
contamination

Opis:

Water is very plentiful through the planet in general. Nevertheless, clean drinking water is not always accessible in the proper time or place for sufficient public or ecological use. The water significance is emphasized by the fact that in the past, great cultures have arisen near and along water bodies. Water quality of some purification complexes (compact units) in the Babylon Province (13 compact unit) as compared with Al-Hillah Al Mouahad Project (water treatment plant) was assessed by the Water Quality Index (WQI) methodology. WQI offers a particular number that states the overall water quality at a definite place and period based on many parameters concerning the quality of water. The water produced from the compact units was classified as "good water" according to the WQI classification with the values ranging from 85.4 in Bermana unit to 99.17 in Al-Muamera compact unit. Moreover, the research results showed that the water purification complexes work with efficiency, very close to the performance of large water purification projects and stations, and this means that it is possible to rely on them to obtain good drinking water quality, especially in small or remote areas.

Źródło:

Journal of Ecological Engineering; 2021, 22, 5; 258-262
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 48.

Tytuł:

Shallow Groundwater Pollution Index Around the Location of Griyo Mulyo Landfill (Jabon Landfill) in Jabon District, Sidoarjo Regency, East Java, Indonesia

Autorzy:

Tangahu, Bieby Voijant
Kartika, Anak Agung Gde
Sambodho, Kriyo
Marendra, Sheilla Megagupita Putri
Arliyani, Isni

Powiązania:

https://bibliotekanauki.pl/articles/1839152.pdf

Data publikacji:

2021

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

pollution index
leachate
Jabon Landfill
water quality status

Opis:

The leachate coming from the landfill is a serious problem. This is because the leachate water can contaminate the wells of the residents around the landfill. This research was conducted at Jabon Landfill located in Jabon District of Sidoarjo Regency, East Java Province, Indonesia. Jabon Landfill has been operating since 2003 with a controlled landfill system that has triggered environmental risks due to the leachate output. The purpose of this study was to determine the classification of the shallow groundwater quality status based on the pollution index (PI) around Jabon Landfill at a distance of around 250 meters, 500 meters and 1,000 meters from the landfill. The pollution index was determined by analyzing the pollutant concentration consisting of these following parameters: pH, BOD, COD and Fe. The results of the analysis show that the pH parameter had a higher value than the pH at Jabon Landfill of 7.2–7.5. The pH at Jabon Landfill was 6.35. The Fe parameter shows that the value of 1.694 in the groundwater well closest to Jabon Landfill and the wells further away indicates that the Fe concentration was lower for the latter, namely 0.081 at a distance of up to 200 meters. On the basis of the Pollution Index, the highest value was 5.45 at Well 7 is located 196 m from Jabon Landfill. Meanwhile, the well furthest from Jabon Landfill at a distance of 1,000 m showed a lightly polluted status with a Pollution Index of 1.91. The further the location of the well away from Jabon Landfill, the Pollution Index value tended to decrease. This means that the pollution status generally improves. Overall, the pollution status of the 18 wells shows that 2 wells are moderately polluted, 15 wells are lightly polluted and 1 well is in good condition.

Źródło:

Journal of Ecological Engineering; 2021, 22, 3; 199-210
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 49.

Tytuł:

Changes in the Trophic Status of Lake Niepruszewskie (Poland)

Autorzy:

Zbierska, J.
Ławniczak, A. E.
Zbierska, A.

Powiązania:

https://bibliotekanauki.pl/articles/124049.pdf

Data publikacji:

2015

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

nitrogen
phosphorus
chlorophyll
water transparency
trophic status index

Opis:

The paper presents the evaluation of trophic status of Lake Niepruszewskie in the years 1994–2013. This is the first lake in the Samica Stęszewska river, flowing dis-tally through the lakes of the Wielkopolski National Park. Source part of the Samica Stęszewska river basin was, in the years 2004–2012, included to the nitrate vulnerable zone (NVZ), and Niepruszewskie Lake was considered to be threatened by eutrophication. The evaluation of trophic status of the lake was made based on the concentration of nutrients (nitrogen and phosphorus) and indicators of eutrophication (chlorophyll a, water transparency Secchi disk marked) by referring them to the limit values for the eutrophication of surface waters as defined in the Regulation of the Minister of Environment of 23 December 2002 and other criteria used for the classification of the eutrophication of surface waters. Detailed and synthetic indexes of the trophic status (TSI) using the formula Carlson and the ratio of N:P were also made. Concentrations of the nutrients in Lake Niepruszewskie and eutrophication indexes reached high values, indicating a eutrophic or hypertrophic state of the lake. Detailed values of the trophic status index (TSI), on average over the period, corresponded to eutrophic, while in subsequent years they were varied – from mesotrophic to hypertrophic. The worst trophic status was recorded in 2003–2006, after the lowering of the lake dam-ming. The high value of N: P ratio indicates that the lake has huge surplus of nitrogen, and phosphorus is a productivity limiting factor.

Źródło:

Journal of Ecological Engineering; 2015, 16, 4; 65-73
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 50.

Tytuł:

Effect of phosphates on dissolved organic matter release from peat-muck soils

Autorzy:

Sokolowska, Z.
Szajdak, L.
Boguta, P.

Powiązania:

https://bibliotekanauki.pl/articles/24997.pdf

Data publikacji:

2011

Wydawca:

Polska Akademia Nauk. Instytut Agrofizyki PAN

Tematy:

amino acid content
ash
bulk density
calcium form
dissolved organic matter
humic acid
muck
organic matter
peat bog soil
pH
peat soil
peat-muck soil
phosphate
surface property
water adsorption index

Źródło:

International Agrophysics; 2011, 25, 2
0236-8722

Pojawia się w:

International Agrophysics

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce