Temat: water pollution - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Monitoring of organophosphorus pesticides and remediation technologies of the frequently detected compound (chlorpyrifos) in drinking water
Autorzy:: Derbalah, A.
Ismail, A.
Shaheen, S.
Powiązania:: https://bibliotekanauki.pl/articles/778327.pdf
Data publikacji:: 2013
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: chlorpyrifos
pollution
toxicity
water
remediation
Opis:: Studies on the currently used organophosphorus insecticides with respect to their environmental levels and effective remediation technologies for their residues in water have been considered as a source of major concern. This study was carried out to monitor the presence of organophosphorus in drinking water plants (Kafr-El-Shiekh, Ebshan, Elhamoul, Mehalt Aboali, Fowa, Balteem and Metobess) in Kafr-El-Shiekh Governorate, Egypt. Furthermore, it was carried out to evaluate the efficiency of different remediation technologies (advanced oxidation processes and bioremediation) for removing chlorpyrifos in drinking water. The results showed the presence of several organophosphorus pesticides in water sampling sites. Chlorpyrifos was detected with high frequency relative to other compounds in drinking water. Nano photo-Fenton like reagent (Fe2O3(nano)/H2O2/UV) was the most effective treatment for chlorpyrifos removal in drinking water followed by ZnO(nano)/H2O2/UV, Fe3+/H2O2/UV and ZnO/H2O2/ UV, respectively. Bioremediation of chlorpyrifos by effective microorganisms (EMs) removed 100% of the chlorpyrifos initial concentration after 23 days of treatment. There is no remaining toxicity in chlorpyrifos contaminated-water after remediation on treated rats with respect to cholinesterase activity and histological changes in kidney and liver relative to control. Advanced oxidation processes especially with nanomaterials and bioremediation with effective microorganisms can be regarded as safe and effective remediation technologies for chlorpyrifos in drinking water.
Źródło:: Polish Journal of Chemical Technology; 2013, 15, 3; 25-34
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Impact of Kishnica mines on pollution of the Graçanka River and water wells nearby, Kosovo
Autorzy:: Kadriu, Sadija
Sadiku, Milaim
Kelmendi, Mensur
Aliu, Mehush
Mulliqi, Ismet
Hyseni, Arbër
Powiązania:: https://bibliotekanauki.pl/articles/1844372.pdf
Data publikacji:: 2021
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: mines
pollution
Graçanka River
water quality
water wells
Opis:: Mining is an important economic activity in Kosovo. Artana and Kishnica mines are a part of the Trepça industrial complex and the increased exploitation of deposits has resulted in undesirable impact on the environment around the mining sites. More specifically, the mining activity caused water pollution. The aim of the study was to assess the physico-chemical parameters and presence of heavy metals (Ni, Zn, As, Cd, Pb, Cr, Mn, Fe) in water samples of the Graçanka River and household wells in the area. The Inductively Coupled Plasma-Mass Spectrometer (ICP-MS) was used to determine metal concentrations. Samples were collected from five sites along the Graçanka River and from four private water wells during a period from September to November 2019. Concentrations of heavy metals in the Graçanka River were as follows Mn (24–1203 μg∙dm–3), Fe (11–785 μg∙dm–3), Ni (4–299 μg∙dm–3), Pb (2–22 μg∙dm–3), As (1–5 μg∙dm–3), Zn (344–1646 μg∙dm–3), Cr (1–2 μg∙dm–3) and Cd (<1 μg∙dm–3). The well waters were polluted by multiple metals (Mn > Fe > Ni > Pb) with concentrations of Mn 1834–36089 μg∙dm–3, Fe 158–3535 μg∙dm–3, Ni 82–1882 μg∙dm–3, Pb 5–45 μg∙dm–3, As 2–19 μg∙dm–3, Cd 1–12 μg∙dm–3, Zn 979–23474 μg∙dm–3 and Cr 1–2 μg∙dm–3. The pollution has been caused by industrial (mining-related) and urban discharges. The contamination originates from the release of flotation process waste and from the leaching of the tailings dam. Most probably, rainwater has washed contaminants into the aquifers and the Graçanka River. River water is not suitable for irrigation and well water is not suitable for consumption or irrigation. Wastewater should be treated before discharge and the tailings area should be remediated in order to stop the pollution.
Źródło:: Journal of Water and Land Development; 2021, 48; 16-21
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Monitoring of Phytoplankton Abundance and Chlorophyll-a Content in the Estuary of Banjar Kemuning River, Sidoarjo Regency, East Java
Autorzy:: Al Diana, Nabila Zahro
Sari, Luthfiana Aprilianita
Arsad, Sulastri
Pursetyo, Kustiawan Tri
Cahyoko, Yudi
Powiązania:: https://bibliotekanauki.pl/articles/1839560.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: marine
blue water
ecological footprint
pollution
water quality
Opis:: Estuaries are coastal areas that have a fairly high fertility rate. This region can be said to be fertile because it is influenced by such physical factors as temperature, turbidity, light, and current as well as such chemical factors as salinity, dissolved oxygen, pH, and nutrient content. The estuary of the Banjar Kemuning River is a coastal area with a lot of human activities, and it is close to the mainland, causing the change in the nutrient content in the waters. The nutrient content in the waters is closely related to the phytoplankton abundance, as the higher the nutrient content in the waters, the greater the phytoplankton abundance and the chlorophyll-a content. The level of chlorophyll-a content in the waters can indirectly be used as an indicator of the phytoplankton abundance, which can determine the level of fertility of these waters. The purpose of this study was to determine the relationship between the phytoplankton abundance and the chlorophyll-a content in the estuary of the Banjar Kemuning River. This study is observational research with data analysis using linear regression, simple correlation (Pearson), and ANOVA. In addition, the data collection was carried out by purposive random sampling at predetermined points of stations. The results of this study indicated that the phytoplankton abundance and the chlorophyll-a content at the estuary of Banjar Kemuning River during different months were significantly different (P < 0.05). The average phytoplankton abundance during the study was 19,256 cells/L, 19,044 cells/L, and 22,613 cells/L, while the average chlorophyll-a content during the study was 0.958 µg/L, 0.998 µg/L, and 1.167 µg/L. The conclusion was drawn that there is a difference between the phytoplankton abundance and the chlorophyll-a content each month and classified into high correlation.
Źródło:: Journal of Ecological Engineering; 2021, 22, 1; 29-35
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Physical and Chemical Indicators of Surface Waters of the Tatra National Park
Autorzy:: Sobczyk, Wiktoria
Wójtowicz, Mateusz
Pawul, Małgorzata
Powiązania:: https://bibliotekanauki.pl/articles/123888.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: water
national park
pollution
tourism
Opis:: The study examines selected physical and chemical indicators of water at four sites in the Tatra National Park and one in Zakopane. The results were compared with the requirements to be met by water intended for human consumption. On the basis of the analyses, the examined samples of water were assessed in terms of their potential use as potable water supplies for the human population. It was found that water collected from selected intake points meets the standards for the tested physical and chemical indicators, which determine the drinkability of water. It was found that the main problem of the Tatra National Park is mass, uncontrolled tourism and tourists who do not comply with the regulations.
Źródło:: Journal of Ecological Engineering; 2020, 21, 5; 174-179
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Pollution Sources and Water Quality State of the Supraśl River
Autorzy:: Skorbiłowicz, M.
Skorbiłowicz, E.
Wójtowicz, P.
Ofman, P.
Zamojska, E.
Powiązania:: https://bibliotekanauki.pl/articles/124099.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: water quality
pollution
river
wastewater
Opis:: The main purpose of the study was to evaluate water quality of the Supraśl river and identify its main pollution sources. On the river and its tributaries, 8 control points were selected, located near Krynica, Gródek, Nowosiółki, Zasady (mouth of the tributary Sokołda), Supraśl, Nowodworce, Dobrzyniewo (mouth of the tributary Biała) and Dzikie. The control points were selected in such a way as to take into account the impact of major point sources of analyzed components located along the river and its main tributaries on water quality in the main stream catchment. Water samples were collected once a month during the period from May to November in 2014. In water samples the concentration of dissolved oxygen, Cl^-, SO₄^2-, N-NH₄⁺, P-PO₄^3- and the values of pH, BOD₅ and electrolytic conductivity were indicated. Based on the obtained results, loads of the individual components in river waters were calculated as a product of concentration and Supraśl waters flow rate in a particular month. Supraśl waters, due to values of most analyzed parameters, should be classified as first quality class. The source of Cl^-, SO₄^2-, N-NH₄⁺ in Supraśl waters were treated wastewater and other anthropogenic sources associated with the basin development. Reduced Supraśl water quality is caused by the inflow of organic substances expressed by BZT₅ from natural and anthropogenic origin and concentration of PO₄^3-, which were mainly delivered with treated wastewater.
Źródło:: Journal of Ecological Engineering; 2016, 17, 2; 64-69
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: An evaluation of water quality from Mojen River, by NSFWQI index
Autorzy:: Javid, A.
Yaghmaeian, K
Abbasi, E
Roudbari, A
Powiązania:: https://bibliotekanauki.pl/articles/124136.pdf
Data publikacji:: 2014
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: NSFWQI
Mojen River
pollution
water quality
Opis:: Water quality index (WQI) is valuable and unique rating to depict the overall water quality status in a single term that is helpful for the selection of appropriate treatment technique to meet the concerned issues. The aim of the study was to evaluating water quality from Mojen River by Water Quality Index based on National Science Foundation (NSFWQI). For this purpose, samples were collected from stations at up, middle and downstream of Mojen River in Semnan province (the biggest river in region) in a 2 years interval of 2013-2014 years. Nine parameters namely Turbidity, Biochemical Oxygen Demand, Dissolved Oxygen, Fecal Coliform, nitrate, pH, temperature, total solids and total phosphate were considered to compute the index. Our findings highlighted the deterioration of water quality in the river due to industrialization and human activities. According to NSFWQI, the best condition was recorded in the Dark haniab (Upstream) and the worst condition concerned the Pole (Midstream).
Źródło:: Journal of Ecological Engineering; 2014, 15, 4; 1-6
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Contrasting sediment and water chemistry indicates the extent of the hyporheic zone in a polluted river system
Autorzy:: Ciszewski, D.
Aleksander-Kwaterczak, U.
Powiązania:: https://bibliotekanauki.pl/articles/184829.pdf
Data publikacji:: 2016
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: water
sediment
pollution
floodplain
Biała Przemsza River
Opis:: The concentrations of zinc and cadmium were determined in the sediment cores sampled from the floodplain and the channel in the middle reach of the Biała Przemsza River valley (southern Poland). The results were compared to the river water and groundwater chemistry in order to reveal the average extent of the hyporheic flow. The loss of river waters through the river bed due to the natural migration modified by the drainage of the lead-zinc ore mine caused the strong pollution of the river bed sediments with heavy metals to the depth of almost three meters below the water table in the river. Moreover, the similar groundwater and river water chemistry at that depth suggests that the vertical extent of the hyporheic zone, which exceeds a depth of several meters below the channel, can be affected by the drainage of river waters by the lead-zinc mine. The lateral extent of the hyporheic flow, indicated by changes in groundwater chemistry and elevated heavy metal concentrations in the sediments, was of the order of dozen of meters. The investigation documents the large impact of the secondary in situ enrichment of sediments with heavy metals in the hyporheic zone.
Źródło:: Geology, Geophysics and Environment; 2016, 42, 2; 151-159
2299-8004
2353-0790
Pojawia się w:: Geology, Geophysics and Environment
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Heavy metals in water of Miedwie Lake (West Pomeranian, North-West Poland) and their potentiality in health risk assessment
Autorzy:: Daniszewski, Piotr
Powiązania:: https://bibliotekanauki.pl/articles/1113683.pdf
Data publikacji:: 2017
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Heavy metal pollution
Miedwie Lake (North-West Poland)
environment
metals in water
pollution
Opis:: Miedwie Lake is the biggest post-glacial lake of the West-Pomeranian Voievodship. At the same time it is the fifth of the largest lakes in Poland. Miedwie Lake is situated centrally between three big agglomerations, i.e. Szczecin, Stargard Szczecinski and Pyrzyce. Miedwie Lake has been since 1976, the potable water source for the City of Szczecin. The reservoir is used not only for municipal purposes, but also for fishing, tourist and recreation purposes. Unfortunately, heavy metal pollution is an ever-increasing problem. These toxic heavy metals on entering into the aquatic environment are adsorbed onto particulate matter, although they can form free metal ions and soluble complexes that are available for uptake by biological organisms. Many of these metals tend to remain in the ecosystem and eventually move from one compartment to the other within the food chain. The increase in residue levels of heavy metal content in water, sediments and biota has resulted in decreased productivity and increase in exposure of humans to harmful substances. Food chain contamination by heavy metals has become a burning issue in recent years because of their potential accumulation in biosystems through contaminated water, soil, sediment and air. The present research work deals with the quantification of toxic heavy metals in the water samples collected from Miedwie Lake (North-West Poland).
Źródło:: World News of Natural Sciences; 2017, 14; 79-89
2543-5426
Pojawia się w:: World News of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: The Distribution of Metals in Sediments of the Likova, Kumanova and Pçinja Rivers: Spring Season
Autorzy:: Ejupi, N.
Korça, B.
Durmishi, B. H.
Durmishi, A.
Ejupi, E.
Ismaili, M.
Jashari, A.
Shabani, A.
Powiązania:: https://bibliotekanauki.pl/articles/123812.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: metals
pollution
physical-chemical parameters
sediments
river water
Opis:: The pollution of rivers is an important issue because the utilization of polluted water has a direct effect on the health of people and other living beings, economy, etc. Sediments represent a very suitable indicator for monitoring and detecting pollution sources of river waters. The aim of this study is to analyze the contents of selected metals in the sediments of the rivers Likova, Kumanova and Pçinja rivers. The water samples were taken in June 2014 from six sampling stations. Several physicochemical parameters of rivers were determined and the contents of twenty-two metals was indicated in the sediment samples taken from these rivers. The obtained physico-chemical quality of the water from these rivers resulted in classification to the first/second category. The sediments were mostly polluted by Al, Ca, Na and Mg. The metals that exceeded the Dutch standard were: Ba, Ni, Zn, Cr and Cu. The order of metals in sediments was as follows: Fe > Al > Ca > Na > Mg > K > Mn > Ba > Sr > Cr > Zn > V > Ni > Cu > Pb > Li. The study results reveal a mild pollution in rivers caused by urban, agricultural and industrial activities.
Źródło:: Journal of Ecological Engineering; 2018, 19, 3; 80-92
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: The geological conditioning of hydrocarbon emissions resulting from soil contamination
Autorzy:: Lipińska, E. J.
Powiązania:: https://bibliotekanauki.pl/articles/124703.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: geology
hydrocarbon substances
mineral water
pollution
soil
environment
Opis:: Synchronization economy of oil mining and mineral waters is associated with planning the functions of spa treatment. Environmental protection of the spa areas also applies to preserve their technical and cultural heritage. This article attempts to determine the places of natural and anthropogenic hydrocarbon pollution substances. Their presence in the soil affects the quality of the environment. As a result, maps are produced showing directions of research: (1) the natural background of biodiversity, and (2) potential anthropogenic pollution. They are assessed in the context of the health and human life, protection of the environment and the possibility of damage to the environment. Research is conducted in communes of the status of the spa – for special protection.
Źródło:: Journal of Ecological Engineering; 2015, 16, 1; 43-49
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Heavy metals in the waters of Dąbie Lake (West-Pomeranian Voievodship, North-West Poland)
Autorzy:: Daniszewski, P.
Powiązania:: https://bibliotekanauki.pl/articles/411887.pdf
Data publikacji:: 2013
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Heavy metal pollution
metals in water
Dąbie lake (North-West Poland)
pollution
environment
Opis:: Heavy metal pollution is an ever increasing problem of our lakes. These toxic heavy metals entering in aquatic environment are adsorbed onto particulate matter, although they can form free metal ions and soluble complexes that are available for uptake by biological organisms. The increase in residue levels of heavy metal content in water, sediments and biota has resulted in decreased productivity and increase in exposure of humans to harmful substances. Many of these metals tend to remain in the ecosystem and eventually move from one compartment to the other within the food chain. Food chain contamination by heavy metals has become a burning issue in recent years because of their potential accumulation in biosystems through contaminated water, soil, sediment and air. Dąbie Lake is an integral part of the River Odra estuary. It is a shallow (2.5 m mean depth) water body with two distinct basins: the large (Dąbie Wielkie) and the small (Dąbie Małe). The aim of the studies, carried out in the years 2008 - 2009, was to determine the content of Cadmium (Cd), Chromium (Cr), Copper (Cu), Mercury (Hg), Nickel (Ni), Lead (Pb) and Zinc (Zn) in the waters of Dąbie Lake, being the internal part of the tertiary Odra estuary.
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2013, 12; 72-81
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Hydro-ecological State of Ukrainian Water Bodies Under the Influence of Military Actions
Autorzy:: Stelmakh, Valentyna
Melniichuk, Mykhailo
Melnyk, Oleh
Tokarchuk, Ivan
Powiązania:: https://bibliotekanauki.pl/articles/27315751.pdf
Data publikacji:: 2023
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: hydro-ecological condition
water body
martial law
water quality monitoring
water infrastructure
pollution
flooding
Opis:: The article aims to analyse the impact of military operations on the hydro-ecological state of water bodies in Ukraine, analyse potential military risks and assess the prospects for recovery in the water sector. The war leads to the destruction of water supply infrastructure and, secondly, to the pollution of natural waters with sewage and ammunition. Thus, Ukraine's hydro-ecological condition of natural watercourses and reservoirs is deteriorating during a full-scale war. First, we analysed the literature and modern scientific publications and studied the current state of the water bodies of Ukraine under martial law. The article analyses the key consequences of military operations on water bodies, including the destruction of water infrastructure and hydraulic structures, contamination by explosives and destroyed military equipment, flooding by mine water, and leaks from tailing ponds. Special attention is paid to the results of water quality monitoring in wartime. The authors systematised and reviewed the key incidents of destruction and damage to hydraulic structures since the beginning of the war. Potential risks to water bodies in the context of Russian aggression are studied. Finally, the author analyses the directions of the post-war reconstruction of Ukraine and proposes a list of practical steps necessary to restore water resources. The author's view on post-war reconstruction measures in water resources is offered. In addition, environmental organisations and local authorities can use the results of this scientific research.
Źródło:: Rocznik Ochrona Środowiska; 2023, 25; 174--187
1506-218X
Pojawia się w:: Rocznik Ochrona Środowiska
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Comparative Analysis of Borehole Water Characteristics as a function of Coordinates in Emohua and Ngor Okpala Local Government Areas, Southern Nigeria
Autorzy:: Ugwuadu, R. N.
Nosike, E. I.
Akakuru, O. U.
Ejike, E. N.
Powiązania:: https://bibliotekanauki.pl/articles/1076782.pdf
Data publikacji:: 2019
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Borehole water
Emohua
Ngor Okpala
coordinates
pollution
variance
Opis:: Comparative analysis of sixteen (16) borehole water supply sources collected from Emohua and Ngor Okpala Local Government Areas (hereafter referred to as LGAs) were carried out in December 2017 to March 2018. Physicochemical parameters were analyzed using analytical techniques and instruments to study the level of pollutant concentration as index of mine exploitation. Coordinates were used to differentiate the boreholes by way of some physicochemical parameters, while multiply analyses of variance was applied. The results obtained showed mean values of pH (4.66 ±0.05), conductivity (82.100 ±0.05), alkalinity (0.056 ±0.05), chloride (1.146 ±0.05), total dissolved solids (45.140 ±0.05), total organic matter (0.024 ±0.05), sulphate (0.030 ±0.05) and iron (0.357 ±0.05). The realized pH values indicate that the boreholes are acidic. Moreover, the Fe levels in some boreholes were above the permissible limit of the water standard. From the results of the ANOVA, the null hypothesis (H0) revealed significant differences in pH, Cl¯, TDS, conductivity, whereas other factors such as alkalinity, SO42¯, total organic matter and Fe were not significant in both LGAs. The coordinate results also showed that chloride increases as sulphate decreases in both LGAs. Furthermore, total organic matter increases with increase in alkalinity and Fe increases with increase in TDS in the two LGAs as well. This concludes that there is pollution in the two study areas.
Źródło:: World News of Natural Sciences; 2019, 24; 335-348
2543-5426
Pojawia się w:: World News of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Comparative Study of the Physico-Chemical and Metallic Quality of Waters and Sediments in the Larbaa Basin (Morocco) in the Dry and Wet Period
Autorzy:: Afgane, Rachida
Benjelloun, Faiza
Lahrach, Abderrahim
Daide, Fatima
Powiązania:: https://bibliotekanauki.pl/articles/1955541.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: Larbaa basin
surface water
physicochemistry
pollution
heavy metals
Opis:: The catchment area of Oued Larbaâ is located in the eastern prerif at the very eastern end of the large Innaouene basin, a stream of Oued Sebou [Lahrach. A et al., 1994]. The objective of the study was to establish a quality comparison of the watershed during the dry and wet seasons. Eight water and sediment samples were taken during the two seasons, all along the main channel of the Larbaa river, taking into account anthropogenic activities and the areas of confluence with its tributaries: Tarmasst, Taza, Larouireg, Defali and Jaouna. The physicochemical parameters (pH, EC, TDS, nitrates, sulfates, chlorides), as well as metal contamination (Al, Zn, Ni, Pb, Ag, Fe, Cd, Cr, Cu, Mg, Mn) were studied in summer. The results revealed the alkaline pH higher than 7, a significant electrical conductivity in several stations, but still conforming to the Moroccan standards. Laboratory analyses reflect that the waters of the basin have generally good quality, except for a few peaks that indicate metallic contamination in Fe and Al. In order to better assess whether there is an anthropogenic effect influencing these results, and to remove the relationships between the different parameters studied, a statistical analysis was carried out with the PCA tool. This analysis made it possible to indicate Cr, Ni and Al as indices of pollution in certain areas. Although the results obtained have been tolerant until now, it is necessary to put in place an action plan to control the areas at risk of contamination during the years.
Źródło:: Journal of Ecological Engineering; 2021, 22, 8; 92-102
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Physico-Chemical Characterization of an Urban Wastewater Effluent and its Impact on the Receiving Environment: Oued Nfifikh (Morocco)
Autorzy:: Merbouh, Chaimaa
Namoussi, Soukaina
Kabriti, Mohamed
Naamane, Ayoub
Rihane, Abdeslam
Iounes, Nadia
Powiązania:: https://bibliotekanauki.pl/articles/2068481.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: Oued Nfifikh
water stream
wastewater
physicochemical quality
pollution
Opis:: Oued Nfifikh is among the least studied Moroccan rivers. Thus, the primary aim of this study was to shed light on the quality of this undervalued stream. Its downstream part is affected by one of the most crucial environmental issues. It receives the discharges of wastewater evacuated precariously without prior treatment, which might lead to the degradation of the overall ecological status of this fluvial hydrosystem. This research work aimed to study the physicochemical water quality downstream the river Nfifikh through a monthly monitoring of the physicochemical parameters’ indicator of pollution, from August 2018 to July 2019. The results obtained show that the stream is exposed to high pollution which is mainly organic. Consequently, the wastewater represents a major cause of water quality degradation of this receiving environment: ecological and health impacts are therefore to be expected.
Źródło:: Journal of Ecological Engineering; 2022, 23, 3; 183--193
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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