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Tytuł:
Effect of BioPlus YC probiotic on the fatty acid profile and lipid indices in pork
Autorzy:
Goluch, Z.
Werenska, M.
Woloszyn, J.
Rybarczyk, A.
Okruszek, A.
Teleszko, M.
Haraf, G.
Powiązania:
https://bibliotekanauki.pl/articles/1192138.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
pig
meat
probiotic
fatty acid
lipid quality indices
Opis:
The objective of this study was to assess how probiotic bacteria added to diets of 60 hybrid barrows (Landrace–Yorkshire x Duroc) affected the basic chemical composition of meat, the fatty acid profile of intramuscular fat (IMF), m. longissimus lumborum (LL) and lipid quality indices, because IMF cannot be removed before consumption and this inevitably has an impact on human health. After 78 days, the pigs were divided into the control group (CT, n=30) and the experimental group (BP, n=30), which until 97 days of rearing were supplied with BioPlus YC probiotic (Bacillus licheniformis DSM 5749 and Bacillus subtilis DSM 5750). After slaughter, 12 carcasses of similar weight (90 ± 5 kg) from each group were selected for testing. Supplementation with probiotic Bacillus did not affect the basic chemical composition of meat. It was established that BioPlus YC had a significant impact on capric – C10:0 (0.08 vs. 0.13), eicosatrienoic – C20:3 n-3 (1.76 vs. 2.14) and ΣPUFA n- 3 acids (1.88 vs. 2.41), causing a reduction in their percentage, which was thereby different than in the CT group. Among lipid quality indices, IMF LL of pigs from the BP group, the thrombogenicity index (TI) was characterized by a significantly (P≤0.01) higher value than in the CT group (1.08 vs. 0.99). These results suggest that further research is needed to study differences in compounds affecting the fatty acid profile of pork, and to confirm the association of the lipid profile with the use of BioPlus YC probiotic in pig fattening.
Źródło:
Journal of Elementology; 2020, 25, 3; 973-991
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Treated Sewage Outflow From a Modernized Sewage Treatment Plant on Water Quality of the Breń River
Autorzy:
Kowalik, T.
Bogdał, A
Borek, Ł
Kogut, A
Powiązania:
https://bibliotekanauki.pl/articles/124660.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
sewage treatment plant
eutrophication
quality indices
ecological state
Opis:
The paper aimed at determining the effect of treated sewage discharged from a sewage treatment plant, modernized in 2007–2008, on the quality of the receiving water – the Breń river. The mechanical-biological sewage treatment plant is situated in the northern part of Dąbrowa Tarnowska town (Malopolskie voivodship). The treated sewage is disposed of by means of a collecting pipe to the Breń river, which abiotically is a lowland sandy stream, type 17. The hydrochemical analyses were conducted monthly, from May 2014 to April 2015 in three measurement points. The first and the third were situated on the Breń river, 30 m above and 400 m below the treated sewage outlet respectively, whereas the second one was on the outflow collecting pipe from the sewage treatment plant. In the analysed water, 17 physicochemical water quality indices were determined by means of reference methods. On the basis of the data analysis it was found that pollutant concentrations in the treated sewage discharged into the Bren river did not exceed the values stated in the water permit and only sporadically did not meet the requirements stated in the Regulation of the Minister of Environment regarding ammonium nitrogen concentrations in the winter-spring period. Slight dynamics of seasonal changes of physicochemical indices values in the treated sewage evidences a high proficiency of the sewage treatment plant operation, irrespective of the air or water temperature. The treated sewage affected the increase in 12 from among 17 analysed physicochemical indices in the Breń river, of which the dependencies were statistically significant in 8 cases. BOD5 and ammonium nitrate caused a change of water quality class from I to II, and in case of phosphates a decline of ecological state from very good to below good. Despite a negative effect of the sewage treatment plant, the water quality state in the Breń river would be much worse if untreated municipal waste flowed into the receiving water.
Źródło:
Journal of Ecological Engineering; 2015, 16, 4; 96-102
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The new approach to hybrid Kalman filtering, based on the changed order of filters for state estimation of dynamical systems
Autorzy:
Michalski, Jacek
Kozierski, Piotr
Ziętkiewicz, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/378067.pdf
Data publikacji:
2019
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
state estimation
Kalman filtering
particle filtering
power system
quality indices
Opis:
The paper presents a new approach to Hybrid Kalman filtering, composed of Extended Kalman Filter and Unscented Kalman Filter. In known algorithms, the Unscented Kalman Filter algorithm is used as first and the result of this is given as an input to the Extended Kalman Filter. The authors checked modified Hybrid Kalman Filter with changed order of filters using theoretical object, which was created on the basis of power system. Besides traditional method, the modification of Hybrid Kalman Particle Filter was evaluated too. Results were compared with Extended Kalman Filter, Unscented Kalman Filter and Bootstrap Particle Filter. For particle filters the authors compared method estimation qualities for a different number of particles. The estimation quality was evaluated by three quality indices. Based on the obtained results, one can see that the changed order of methods in Hybrid Kalman filter can improve estimation quality.
Źródło:
Poznan University of Technology Academic Journals. Electrical Engineering; 2019, 97; 181-190
1897-0737
Pojawia się w:
Poznan University of Technology Academic Journals. Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Marketing potential of websites of rural tourism facilities in Poland
Potencjał marketingowy witryn internetowych obiektów turystyki wiejskiej w Polsce
Autorzy:
Król, K.
Powiązania:
https://bibliotekanauki.pl/articles/2051486.pdf
Data publikacji:
2019
Wydawca:
Akademia Bialska Nauk Stosowanych im. Jana Pawła II w Białej Podlaskiej
Tematy:
Internet marketing
popularity rankings
quality indices
sales potential
Internet ecosystem
Opis:
Subject and purpose of work: The aim of the study is to assess the marketing potential of websites of rural tourism facilities’ in Poland. Materials and methods: It was assumed that the marketing potential of a website provided the basis for placing it in global popularity rankings. The study involved 1000 paid domain websites. Each website was analysed using four tools which yielded values of selected indices, including Serpstat Visibility, Alexa Global Rank and SimilarWeb Global Rank. Results: Almost half of the websites of rural tourism facilities’ obtained 0 or 1 point in the Open Page Rank index evaluation. For 764 websites from the analysed set, the Serpstat Visibility index value was not available, while in the remaining cases it was very low. The websites either reached distant positions in Alexa and SimilarWeb rankings or were not included in them at all. Conclusions: The adopted research model does not allow for absolute assessment of the actual marketing potential of websites. However, the study confirmed that it was not used.
Przedmiot i cel pracy: Celem pracy jest ocena potencjału marketingowego witryn internetowych obiektów turystyki wiejskiej w Polsce. Materiały i metody: Przyjęto, że potencjał marketingowy witryny jest podstawą do plasowania jej w ogólnoświatowych rankingach popularności. Badaniami objęto 1000 witryn w domenach płatnych. Każdą z nich poddano analizie przy pomocy czterech narzędzi, które pozwoliły pozyskać wartości wybranych wskaźników, m.in. Serpstat Visibility, Alexa Global Rank oraz SimilarWeb Global Rank. Wyniki: Prawie połowa witryn internetowych obiektów turystyki wiejskiej uzyskała 0 lub 1 punkt w ocenie wartości wskaźnika Open Page Rank. W przypadku 764 witryn z badanego zbioru niedostępna była wartość wskaźnika Serpstat Visibility, a w pozostałych przypadkach była ona bardzo mała. Witryny osiągały odległe miejsca w rankingach Alexa oraz SimilarWeb, lub w ogóle nie były w nich uwzględniane. Wnioski: W przyjętym modelu badań nie jest możliwa bezwzględna ocena rzeczywistego potencjału marketingowego witryn. Badania potwierdziły jednak, że nie jest on wykorzystany.
Źródło:
Economic and Regional Studies; 2019, 12, 2; 158-172
2083-3725
2451-182X
Pojawia się w:
Economic and Regional Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance of map applications on mobile devices: case study
Wydajność aplikacji mapowej na urządzeniach mobilnych: studium przypadku
Autorzy:
Król, Karol
Halva, Jozef
Pagáč Mokrá, Alexandra
Powiązania:
https://bibliotekanauki.pl/articles/1429599.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie
Tematy:
website performance
website speed test
loading speed
conversion rate
quality indices
wydajność strony internetowej
test szybkości witryny
prędkość ładowania
współczynnik konwersji
wskaźniki jakości
Opis:
Performance is one of the most important indicators of quality of software. It plays a significant role not only for business websites and apps, but in case of map components and applications, especially for mobile devices. The aim of the paper is to measure performance of map applications on mobile devices. The performance testing was run on a prototype of an interactive map component of the zoom-lens type using selected web applications. Speed Index (measurement unit) reached the value of 1601 milliseconds, and Performance Score obtained the highest possible value (100 units). A high value of Lighthouse Performance Score was also noted (98 units). Study showed that satisfying measurement results of indices in relation to the time of loading of the component in the browser window are associated with a small size of the component. In case of small components, which enhance the functionality of map websites and apps, it is recommended to compress all parts of the component, regardless of the results of the performance tests.
Wydajność jest jednym z najważniejszych wyznaczników jakości oprogramowania. Wydajność ma istotne znaczenie nie tylko dla witryn i aplikacji biznesowych, ale także w przypadku komponentów i aplikacji mapowych, w szczególności na urządzeniach mobilnych. Celem pracy jest pomiar wydajności aplikacji mapowej na urządzeniach mobilnych. Testom wydajności poddano prototyp interaktywnego komponentu mapowego typu „zoom-lens”. Testy przeprowadzono przy pomocy wybranych aplikacji internetowych. Wskaźnik Speed Index (pomiar jednostkowy) osiągnął wartość 1601 milisekund, a wskaźnik Performance Score osiągną największą możliwą wartość (100 jednostek). Odnotowano także dużą wartość wskaźnika Lighthouse Performance Score (98 jednostek). Badania pokazały, że zadowalające wyniki pomiaru wskaźników związanych z czasem wczytywania komponentu w oknie przeglądarki wynikają z niewielkiego rozmiaru komponentu. W przypadku niewielkich komponentów, które rozszerzają funkcjonalność witryn i aplikacji mapowych wskazana jest kompresja wszystkich część składowych komponentu, niezależnie od wyników testów wydajności.
Źródło:
Geomatics, Landmanagement and Landscape; 2020, 3; 55-64
2300-1496
Pojawia się w:
Geomatics, Landmanagement and Landscape
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of effluents from rainbow trout ponds on water quality in the Gowienica River
Wpływ zrzutu wód poprodukcyjnych ze stawów pstrągowych na jakość wody w rzece Gowienicy
Autorzy:
Bonisławska, M.
Tański, A.
Mokrzycka, M.
Brysiewicz, A.
Nędzarek, A.
Tórz, A.
Powiązania:
https://bibliotekanauki.pl/articles/293262.pdf
Data publikacji:
2013
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
indices of surface water quality
rainbow trout ponds
water quality
jakość wód
stawy pstrągowe
wskaźniki jakości wód powierzchniowych
Opis:
Fish farming and especially rearing and breeding of rainbow trout and carp is one of potential sources of surface water pollution. The study was aimed at assessing the effect of a rainbow trout farm on water quality in the Gowienica River in winter. Temperature, pH, electrolytic conductivity, total suspended solids, dissolved oxygen, BOD5, CODCr, alkalinity, water hardness, calcium, magnesium, ammonium-nitrogen, nitrate-nitrogen (III and V) and total phosphorus were determined according to Polish Norms and APHA [1995] in water samples collected in winter up- and downstream the study object. The increment of pollutant concentrations in rainbow trout farm effluents was referred to the requirements in Rozporządzenie MŚ [2006]. Performed studies and literature review show that effluents from the assessed fish farm did not worsen water quality of the river. Increased concentrations of total suspended solids and CODCr in effluents were noted only in March. According to data from the report on environmental status in zachodniopomorskie province in the years 2008–2011, poor water quality of the Gowienica River is recorded already upstream the rainbow trout farm. Pollution of this stretch of the river may originate from uncontrolled waste water management and from nutrient runoff from fields.
Jednym z potencjalnych źródeł zanieczyszczenia wód powierzchniowych jest gospodarka rybacka zajmująca się głównie chowem i hodowlą pstrąga tęczowego i karpia. Celem pracy była ocena wpływu działalności gospodarstwa pstrągowego na jakość wód Gowienicy w sezonie zimowym. W okresie zimowym w pobranych próbkach wody w punktach powyżej i poniżej obiektu oznaczano następujące wskaźniki: temperaturę, pH, przewodność elektrolityczną, zawiesinę ogólną, tlen rozpuszczony w wodzie, BZT5, ChZTCr, zasadowość, twardość, wapń, magnez, azot amonowy, azot azotanowy (III) i (V), fosfor ogólny – zgodnie z wybranymi Polskimi Normami i zaleceniami APHA [1995]. Określano przyrost zanieczyszczeń w wodach poprodukcyjnych z hodowli pstrągów, który odnoszono do wymogów zawartych w Rozporządzeniu MŚ [2006]. Jak wynika z przeprowadzonych badań oraz z przeglądu literatury, wody poprodukcyjne pochodzące z działalności ocenianego gospodarstwa rybackiego nie wpływały na pogorszenie jakości wody badanej rzeki. Uzyskane w pracy wyniki wykazały przyrost stężenia zawiesin ogólnych i ChZTCr, w wodach poprodukcyjnych tylko w marcu. Zgodnie z danymi zawartymi w raportach o stanie środowiska w woj. zachodniopomorskim w latach 2008–2011, niezadowalająca jakość wód Gowienicy jest notowana już na odcinku powyżej gospodarstwa pstrągowego. Źródłem zanieczyszczeń występujących na tym odcinku Gowienicy może być nieuregulowana gospodarka kanalizacyjna w gminie, jak również spływy składników biogennych z pól.
Źródło:
Journal of Water and Land Development; 2013, no. 19 [VII-XII]; 23-30
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling of dried apple rehydration indices using ANN
Autorzy:
Górnicki, K.
Kaleta, A.
Trajer, J.
Powiązania:
https://bibliotekanauki.pl/articles/2082529.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
rehydration
rehydration indices
apple
quality
ANN
Opis:
The purpose of the research was to study the effect of different drying and rehydration conditions on the rehydration indices of apple and to model the rehydration indices of apple using artificial neural networks. The research involved the examination of the rehydration process of 10 mm apple cubes, which were dried in natural convection (drying air velocity), forced convection and fluidization at the following drying temperatures 50, 60 and 70°C. The process of rehydration was conducted in distilled water at the following temperatures 20, 45, 70 and 95°C. Five rehydration indices were used to express rehydration. Artificial neural networks (MLP 3-5-1 and MLP 3-4-1) were used to make the rehydration indices dependent on both drying and rehydration parameters: drying temperatures, v and following temperatures. Five statistical tools, i.e. correlation coefficient, mean bias error, root mean square error, reduced chi-square, and t-statistic method (t-stat), were applied to determine the fit. To identify critical parameters and their impact on the ANN outputs, a sensitivity analysis (backward stepwise method) was performed.
Źródło:
International Agrophysics; 2019, 33, 3; 285-296
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characteristics of selected physicochemical indices of upland carbonate stream water with coarse-grained substrate
Autorzy:
Policht-Latawiec, A.
Kanownik, W
Grubka, K
Powiązania:
https://bibliotekanauki.pl/articles/124481.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
Sztoła river
water quality
physicochemical indices
Opis:
Hydrochemical research was conducted in 2011 at three measurement-control points on the Sztoła river, a left-bank tributary to the Biała Przemsza river. Water temperature and pH, dissolved oxygen concentration, oxygen saturation and electrolytic conductivity were measured directly in the field. 11 selected physicochemical indices of the Sztoła surface water were assessed in the laboratory. The analysis of the research results revealed that the water of the Sztoła along the analyzed river reach was first class quality. The analysis of water usable qualities proved that at point 1 it can be used for water supply after high-performance physical and chemical treatment, whereas at other points after a typical physical and chemical treatment, due to high manganese concentrations. Water does not meet the requirements of natural habitat for the Salmonoid fish only at point 1 because of exceeded standard values for nitrites. The Cyprinid fish have the proper habitat conditions along the examined river reach. Among 15 analysed physiochemical indices of water, 7 were statistically higher in the lower course, but they did not affect worsening of the Sztoła river water quality. Greater water pollution in the central and lower river reach is caused by the anthropogenic pressure connected mainly with the operations of extraction industry in the catchment.
Źródło:
Journal of Ecological Engineering; 2014, 15, 4; 23-28
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Impact of Anthropopressure on Physicochemical State of the Korzkiewka Stream
Autorzy:
Policht-Latawiec, A.
Kanownik, W.
Powiązania:
https://bibliotekanauki.pl/articles/123589.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
water quality
anthropogenic factors
physicochemical indices
Korzkiewka stream
Opis:
The aim of the paper was the identification and assessment of the area of anthropogenic impacts on water quality in the catchment of the Korzkiewka stream flowing through the areas of the Malopolska region. Analyses of physicochemical indices revealed that waters along the whole length of the stream qualified for below good status due to the exceeded EC and nitrate nitrogen concentrations. It was found that among 21 analyzed physicochemical indices, statistically significant differences occurred for 5: total dissolved solids, SO42-., Mg2+, K+ and water pH. In the headwaters section values of four salinity indices were significantly higher in relation to the other part of the stream. Assessment of anthropogenic factors affecting the catchment water resources conducted on the basis of unitary and percent indices revealed that the dominant category shaping the physicochemical status of the Korzkiewka stream water is municipal economy. The intensity of the influence of the factors from this category was from medium to very high, while in case of sewage discharged through the sewage network, even to outlier intensity. Forestry and agriculture exerted medium pressure, whereas the factors from the industry category had hardly any influence on water in the stream.
Źródło:
Journal of Ecological Engineering; 2017, 18, 5; 199-208
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A New Model for the Regulation of Distribution System Operators with Quality Elements that Includes the SAIDI/SAIFI/CRP/CPD Indices
Autorzy:
Putynkowski, G.
Woźny, K.
Balawender, P.
Kozyra, J.
Łukasik, Z.
Kusmińska-Fijałkowska, A.
Ciesielka, E.
Powiązania:
https://bibliotekanauki.pl/articles/262616.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Tematy:
quality regulation
electric energy distribution
continuity of electric energy supply indices
reliability indices
quality of electric energy supply
Energy Regulatory Office
Opis:
This document is a description of quality regulation for Distribution System Operators included in the new regulations model for 2016-2020 and informed by the SAIDI, SAIFI, CRP and CPD indices. The changes have an impact on the amount of return from regulated income of enterprises that distribute electric energy. In the new system, failure to fulfil the conditions and indices results in a decrease of return on capital for the DSOs
Źródło:
Electrical Power Quality and Utilisation. Journal; 2016, 19, 1; 1-7
1896-4672
Pojawia się w:
Electrical Power Quality and Utilisation. Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of Stormwater System Influence on the River Using Algae
Autorzy:
Babko, Roman
Szulżyk-Cieplak, Joanna
Danko, Yaroslav
Duda, Sylwia
Kirichenko-Babko, Marina
Łagód, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/123804.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
stormwater system
river
water quality
bioindication
algae environmental indices
Opis:
One of the widespread sources of river pollution is the wastewater coming from both wastewater treatment plants and the stormwater system. Wastewater can vary significantly in composition and concentration of substances introduced into water bodies. Municipal effluents may contain significant amounts of organic matter and ammonia. Storm drains are diverse in composition and depend on the nature of the surface from which the water collects, but carry more suspended solids and less nutrients. The research was aimed at assessing the effect of surface runoff collected by the stormwater system from the territory of the city of Lublin on the Bystrica River using popular environmental indices, calculated on the basis of periphytonic algae species abundances: species number, Shannon’s H, rarefied species number, Pielou’s evenness, trophic diatom index (TDI). It was observed that the correspondence between a species diversity and the quality of the environment is not always straightforward. Therefore, the periphytonic algae diversity increases under the influence of runoff, as evidenced by the Shannon index. Nevertheless, pronounced changes are noted in the structure of the algal community, as shown by the Pielou index and NMDS. However, these changes in the structure are invisible if the trophic diatom index (TDI) is relied upon.
Źródło:
Journal of Ecological Engineering; 2020, 21, 2; 214-221
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bioecological and statistical risk assessment of toxic metals in sediments of a worldwide important wetland : Gala Lake National Park (Turkey)
Autorzy:
Tokatli, C.
Powiązania:
https://bibliotekanauki.pl/articles/205162.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Gala Lake
sediment quality
statistical evaluation
bioecological indices
GIS
Opis:
Gala Lake National Park that has an international importance is one of the most important wetland ecosystems for Turkey. As same as many aquatic habitats, Gala Lake is under a significant anthropogenic pressure originated from agricultural activities conducted around the lake and from industrial discharges by means of Ergene River. The aim of this study was to evaluate the sediment quality of Gala Lake and Irrigation Canal by investigating some toxic element accumulations (As, B, Ni, Cr, Pb, Cd, Zn and Cu) from a statistical perspective. Pearson Correlation Index (PCI) and Factor Analysis (FA) were applied to detected data in order to determine the associated contaminants and effective factors on the system. Potential Ecological Risk Index (RI) and Biological Risk Index based sediment quality guidelines (mERM-Q) applied to detected data in order to assess the ecological and biological risks of heavy metals in the ecosystem. Also Geographic Information System (GIS) technology was used to make visual explanations by presenting distribution maps of investigated elements. According to the results of PCI, significant positive correlations were recorded among the investigated toxic elements at 0.01 significance level. According to the results of FA, two factors, which were named as “Agricultural Factor” and “Industrial Factor”, explained 86.6% of the total variance. According to the results of Potential Ecological Risk Index, cadmium was found to be the highest risk factor and according to results of Biological Risk Index, nickel and chromium were found to be the highest risk factors for Gala Lake and Irrigation Canal. As a result of the present study, it was also determined that heavy metal contents in sediments of Gala Lake National Park reached to critical levels and the system is intensively under effect of agricultural and industrial originated pollution.
Źródło:
Archives of Environmental Protection; 2017, 43, 1; 34-47
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of Municipal Landfill Site on Water Quality in the Włosanka Stream
Autorzy:
Kanownik, W.
Policht-Latawiec, A.
Powiązania:
https://bibliotekanauki.pl/articles/124592.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
water quality
landfill leachate water
heavy metal indices
Włosanka stream
Opis:
Hydrochemical research conducted in the years 2007–2010 comprised monitoring of the Włosanka stream waters and leachate waters from the municipal landfill in Kulerzów in the Malopolskie province. 16 leachate samples were collected from the container taking into consideration the vertical stratification of the quality and samples of water from the Włosanka stream in measurement points situated before and after the landfill. Concentrations of metals: calcium, magnesium, sodium, potassium, iron, manganese and heavy metals: chromium, zinc, copper, cadmium, nickel and lead were determined in the leachates and the stream water. Analysis of the studied metals in the leachates revealed that only potassium concentration exceeded the highest admissible value which is the condition of introducing sewage to water bodies or to soil. Water along the investigated reach of the Włosanka stream, both above and below the municipal landfill was of quality class 1. The landfill had no significant effect on the studied metal concentrations in the stream water – no statistically significant differences were registered between the concentrations of the studied metals (including heavy metals) either in the point above or below the landfill. However, statistical tests comparing values of metal concentrations in the landfill leachates with the stream water revealed that the concentrations of 7 out of 12 tested metals were significantly higher in the leachates. Therefore, the landfill site monitoring should be continued, leachate waters should be collected in the container and supplied to the sewage treatment plant to prevent any threat to human life and health, or to the environment.
Źródło:
Journal of Ecological Engineering; 2016, 17, 4; 57-64
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrochemical Conditions of the Łososina River Water Management in the Area of Tymbark
Autorzy:
Policht-Latawiec, A.
Kanownik, W.
Powiązania:
https://bibliotekanauki.pl/articles/124810.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
water quality
physicochemical indices
water management
Łososina river
Tymbark city
Opis:
Sustainable use of waters requires not only determining the amount, but primarily the quality of the available water resources and developing a long-term programme of their protection. The analysis of the Łososina river water in the area of Tymbark city was presented in the paper. The water was tested in a view of the requirements as the natural fish habitat and its potential use for people supply in potable water. The river water samples were taken in 2014 at randomly selected dates, once a month in 5 measurement points. 21 physicochemical indices were assessed in the samples. The assessment of the Łososina river water quality was made on the basis of the results of both: on site and laboratory testing, which were compared with the Regulation of the Minister of Environment of 23 October 2014. The utility values were assessed on the basis of the Regulations of the Minister of Environment of 27 November and 04 October 2014. The analysis of the results demonstrated that the Łososina river water met the requirements of quality class I water in points 1, 2 and 3. Below Tymbark the Łososina river water was polluted, so due to high BOD5 in points 4 and 5, and phosphate concentrations in point 4, it was classified as class II, i.e. good state. Pollution coefficients computed according to Burchard and Dubaniewicz classify the Łososina river water as clean along the whole investigated stretch. Below Tymbark city (points 4 and 5) the Łososina river water cannot be used for drinking water supply because of high BOD5 and iron concentrations. In the other points it could be used for water supply following appropriate physical and chemical treatment. The water does not meet the requirements for salmonid or cyprinid fish along the whole stretch because of high nitrite concentrations, except point 3, where the Łososina river water provided a proper natural habitat for carp.
Źródło:
Journal of Ecological Engineering; 2015, 16, 5; 151-159
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Use of diatoms to asses water quality of anthropogenically modified Matysówka stream
Autorzy:
Noga, T.
Stanek-Tarkowska, J.
Peszek, Ł.
Pajączek, A
Kowalska, S.
Powiązania:
https://bibliotekanauki.pl/articles/123641.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
diatoms
diversity
diatom indices IPS
GDI
TDI
water quality
Matysówka
Opis:
Matysówka stream is small, under 6 km long watercourse, which is a right-bank tributary of Strug River. In 2009–2011studies on the subject of diversity of diatom communities using diatom indices IPS, GDI and TDI for water quality assessment were conducted. On the stream 271 diatom taxa were identified, among which: Achnanthidium minutissimum var. minutissimum, Navicula cryptotenella, N. gregaria, N. lanceolata, N. tripunctata, Nitzschia linearis, N. pusilla, N. recta, Planothidium frequentissimum, Rhoicosphenia abbreviata were the most frequent. Middle and lower section of Matysówka stream was characterized by increased concentrations of phosphates, nitrites, ammonium, total phosphorus and nitrogen, BOD5. On the basis of diatom indices IPS and GDI waters were characterized as III–IV quality classes, while the TDI index revealed the worst water quality classes (IV–V).
Źródło:
Journal of Ecological Engineering; 2013, 14, 2; 1-11
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
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