Wyniki wyszukiwania - AGRO

1

Roofing materials as pollution emitters - concentration changes during runoff

100%

Tobiszewski M., Polkowska Z., Konieczka P., Namiesnik J.

Polish Journal of Environmental Studies

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2010

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tom 19

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nr 5

The influence of roofing material on concentrations of pollutants in roof runoff waters and changes of pollution concentration in time were investigated. In field studies four roofing material types were taken into consideration: ceramic tile, bituminous membrane, asbestos tile, and zinc sheeting. Samples were collected from November 2007 to March 2008. Anions, cations, metals, PAHs, pesticides, and PCBs were determined. The existence of the first flush phenomenon for most pollutants was confirmed, with concentrations up to two orders of magnitude higher in first flush compared to steady state conditions. Time trends of pollutant concentration changes were observed. Additionally, analysis of a series of samples collected from melting snow accumulated on the roof showed an increase of organic pollutant concentrations during thaw.

2

The impact of select forms of anthropopression on quality of surface waters

100%

Rajda W., Natkaniec J.

Annals of Warsaw Agricultural University. Land Reclamation

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2001

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tom 31

65-74

3

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Impact of lignite mine waters from deep seated drainage on water quality of the Notec River

100%

Staniszewski R., Diatta J. B., Andrzejewska B.

Journal of Elementology

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2014

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tom 19

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nr 3

Open-pit lignite mines affect many compartments of the environment. Surface mines cause changes in the catchment basin, re-shaping the land relief, modifying soil properties and depressing lake water levels as well as the groundwater table. Although the environmental concerns raised by this type of mines have been widely surveyed, we lack sufficient information provided by research reports on regarding the influence of lignite mines there on surface water bodies. In general, there are two types of mine waters from brown coal mining: runoff from the surface and water percolating from deep seated drainage. This paper discusses the impact of lignite mine waters from a deep seated drainage system in the Lubstów Mine on the quality of water in a lowland river. Lignite had been excavated in Lubstów until 2009, and untreated mine waters had been discharged to the Noteć River. The aim of the study was to assess possible changes of the river water quality after the long-term contamination with mine waters. For the assessment, three sites were selected (one above and two below the mine water inflow) for water sampling in order to perform chemical analyses according to standard methods (spectrophotometry, atomic absorption spectroscopy). Properties of mine waters, such as pH, conductivity, phosphorus, nitrates, sulphates, alkalinity and heavy metals, were analysed in samples taken directly from the canal which carried discharged mine waters to the Noteć River. The results showed that lignite mine waters from deep seated drainage generally caused minor changes in river water quality, except alkalinity, in which the water quality below the discharge point (site B) was significantly worse than at the upper site (A). Chemically, site C was similar to site A.

4

Evaluation of water quality index for drinking water

100%

Damo R., Icka P.

Polish Journal of Environmental Studies

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2013

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tom 22

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nr 4

The aim of this study is to determine the quality of drinking water in the city of Pogradec, Albania. Daily samples were taken from six fixed points in the city. They were analyzed based on the standard methods for the following parameters: taste, odor, temperature, pH, conductivity (EC), turbidity, NO-3, NO-2, NH+4, chloride, and microbial load. The assessment of water quality was made using the water quality index (WQI) of the Canadian Council of Ministries of the Environment (CCME). The calculated value of CCME WQI by 87.81 indicates that the drinking water quality in the city of Pogradec is “good,” and that turbidity is the main problem in quality.

5

Vertical-flow constructed wetlands applied in a recirculating aquaculture system for channel catfish culture: effects on water quality and zooplankton

100%

Zhang S.-Y., Zhou Q.-H., Xu D., He F., Cheng S.-P., Liang W., Du C., Wu Z.-B.

Polish Journal of Environmental Studies

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2010

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tom 19

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nr 5

In recent decades, considerable attention has been paid to the serious water pollution caused by the fastgrowing aquaculture industry. On the other side, water quality determines to a great extent the success or failure of an aquaculture operation. So highlighted is the need for sustainable development of aquaculture. In the present work, we established a recirculating aquaculture system (RAS) by vertical-flow constructed wetlands (CWs) for channel catfish (Ictalurus punctatus) culture, and assessed its effects on water quality improvement. The results indicated that the CWs applied in the RAS showed relatively higher removal efficiency for particulate matter (more than 55%) and lower, uneven removal efficiency for nutrients and organic matter (from -34.1% to 48.7%). Paired t-tests showed that only parameters of NH4 +-N, TN, COD, BOD5, TSS, and Chl-a were significantly (p<0.05) lowered after wetland treatment. Despite this, nutrients (but NH4 +-N, NO2--N, and NO3--N), organic matter, and suspended solids (including plankton) in the recirculating ponds were significantly lowered compared to the control, indicating a decline in trophic status. Multivariate analyses revealed strong relationships between zooplankton community structure and the measured environment in the culture ponds. Cyanobacterial blooms that occurred heavily in the control were strongly restrained in the recirculating ponds. This led to water quality that was suitable for fish culture. Hereby, conclusions could be reached that the recirlulating treatment by the CWs achieved its aim of sustaining or extending water quality improvement in the RAS.

6

Water quality assessment of the South-Eastern part of Lake Lanao, Philippines

100%

Angagao N. B., Quiao M. L. D., Roa E. C., Prado G. I.

International Letters of Natural Sciences

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2017

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tom 63

This paper aimed at underlying some physico-chemical characteristics of the water of Lake Lanao at Poona-bayabao, Lanao Del Sur during the first quarter of 2015, by evaluating a total of eight (8) water quality parameters. Physical parameters were temperature, depth, transparency, and total suspended solids. On the other hand, the chemical parameters were pH, dissolved oxygen, phosphate and nitrate. Three sampling stations were considered in the study. Community’s knowledge, perceptions, and attitudes towards the utilization and condition of the lake were also evaluated through interview. Results showed that all assessed physico-chemical parameters still conformed to the Philippines standards set by Department of Environment and Natural Resources (DENR) for fresh surface water as Class A as for the year 2015. One-way Anova showed no significant difference in the overall average of the physico-chemical characteristics in the three sampling stations of Lake Lanao (p > 0.05). With the results obtained, the Lake can still be a source of water supply that require complete treatment in order to meet National Standards for Drinking Water (NSDW) of the Philippines, within the year of the conduct of the study. For the assessment of community’s knowledge, perceptions, and attitudes, Kruskal-Wallis test showed that the knowledge, perceptions, and attitudes are not significantly different in terms of stations. A more comprehensive and wider range monitoring is recommended for future study about the lake.

7

Water quality in forests small retention reservoirs in southern Poland – case study

100%

Wiatkowski M., Rosik-Dulewska C., Nikiel D., Karwaczynska U.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

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2018

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tom 50

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nr 1

8

Changes in the quality of the water of Lake Wicko Male [Szczecin Lagoon] over the years 1991-1997

100%

Poleszczuk G., Sitek S.

Bulletin of the Sea Fisheries Institute

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1997

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nr 3

9

The role of environmental management systems in protection of water resources in Poland

100%

Hewelke P., Malek J., Samol J.

Przegląd Naukowy Wydziału Inżynierii i Kształtowania Środowiska

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2000

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nr 19

10

Using chemometrics to identify water quality in Daya Bay, China

86%

Wu M.-L., Wang Y.-S., Sun C.-C., Wang H., Lou Z.-P., Dong J.-D.

Oceanologia

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2009

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tom 51

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nr 2

217-232

In this paper, chemometric approaches based on cluster analysis, classical and robust principal component analysis were employed to identify water quality in Daya Bay (DYB), China. The results show that these approaches divided water quality in DYB into two groups: stations S3, S8, S10 and S11 belong to cluster A, which lie in Dapeng Cove, Aotou Harbor and the north-eastern part of DYB, where water quality is related mainly to anthropogenic activities. The other stations belong to cluster B, which lie in the southern, central and eastern parts of DYB, where the quality is related mainly to water exchange with the South China Sea. Cluster analysis yields good results as a first exploratory method for evaluating spatial difference, but it fails to demonstrate the relationship between variables and environmental quality on the one hand and the untreated data on the other. However, with the aid of suitable chemometric approaches, the relationship between samples or variables can be investigated. Classical and robust principal component analysis can provide a visual aid for identifying the water environment in DYB, and then extracting specific information about relationships between variables and spatial variation trends in water quality.

11

Impact of sewage sludge land application on groundwater's quality

86%

Gontaszewska A., Krainski A.

Zeszyty Naukowe Uniwersytetu Zielonogórskiego. Inżynieria Środowiska

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2004

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nr 12[131]

12

Quality assessment of spring water from the area of the Lysogory Mts. in Swietokrzyski National Park in 2010

86%

Jasik M., Malek S.

Folia Forestalia Polonica. Series A . Forestry

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2013

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tom 55

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nr 1

The study was conducted in the year 2010 in the Łysogóry Mts. in Świętokrzyski National Park. Spring water samples were collected in three rounds. The first round was carried out after the period of snowmelt (March/ April 2010), the second – after intensive rainfall (May 2010) and the third – when water levels were low (July 2010). The data set attained concerned conductivity, water pH, and also concentrations of the foremost anions (Cl-, NO3 -, SO4 2-) and cations (NH4 +, Na+, K+, Ca2+, Mg2+). Spring water quality was assessed in line with Polish policy on groundwater (Regulation of the Minister of Environment of 23 July 2008, The results confirmed that spring water quality strongly depended on wet acid deposition and the geological structure. Tree species (fir and beech), exposition and soil types within the alimentation area did not influence water chemistry. Spring water were found in low quality classes according to Polish standards due to low water pH as well as high NO3 - and NH4 + concentration.

13

Influence of hydrogeological conditions on fluorine concentrations in underground water intended for consumption

86%

Koc J., Glinska-Lewczuk K., Wons M.

Journal of Elementology

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2007

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tom 12

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nr 4

303-315

This study presents the results of an analysis of factors which affect fluorine concentrations in deep water drawn for consumption. The analysis covered two water intakes in Tczew (northern Poland) consisting of 19 wells which supply water from Cretaceous (4), Tertiary (10), and Tertiary and Quaternary (5) horizons. Fluoride concentrations ranged from 0.3 to 2.8 mg·dm-3 with the Maximum Allowable Concentration of 1.5 mg·dm-3. The allowable qualitative standards were exceeded in 38% of the investigated samples. It was found that fluorine concentrations were most profoundly affected by the water-bearing horizon (the highest concentration levels were observed in water drawn from Cretaceous horizons) and well depth. As a general trend, fluorine concentrations increase with depth, but the analysis of water drawn from the same horizon indicates that bottom-layer water may be characterised by a significantly lower fluoride content. The highest fluorine concentrations were reported in water drawn from Cretaceous water-bearing horizons to a depth of 150 m. The mixing of water from various water-bearing horizons proved to be a sufficient measure to obtain water of satisfactory quality with the optimum fluoride concentration.

14

Modelling values of river macrophyte metrics using artificial neural networks

86%

Gebler D., Kayzer D., Budka A., Szoszkiewicz K.

Infrastruktura i Ekologia Terenów Wiejskich

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2012

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nr 1/IV

The results of field research at 230 river sections located throughout Poland were used to examine the possibility of predicting values of macrophyte metrics of ecological status. Artificial intelligence methods such as artificial neural networks were used in the modelling. The physicochemical parameters of water (alkalinity, conductivity, nitrate and ammonium nitrogen, reactive and total phosphorus, and biochemical oxygen demand) were used as the explanatory (modelling) variables. The explained (modelled) parameters were the Polish MIR (Macrophyte Index for Rivers), the British MTR (Mean Trophic Rank) and the French IBMR (River Macrophytes Biological Index). The quality of the constructed models was assessed using the normalized root mean square error (NRMSE) and the r–Pearson’s linear correlation coefficient between variables modelled by the networks and calculated on the basis of the botanical research. These analyses demonstrated that the network modelling MIR values had the highest accuracy. The lowest prediction accuracy was obtained for MTR and IBMR indices. The differences between particular models are likely to result from better adjustment of the Polish method to local rivers (particularly in terms of indicator species used).

15

Sulphate-reducing bacteria, their properties and methods of elimination from groundwater

86%

Wargin A., Olanczuk-Neyman K., Skucha M.

Polish Journal of Environmental Studies

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2007

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tom 16

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nr 4

639-644

In the Gdańsk region urban development and intensive take off have caused an increase in water exploitation. As a consequence of the changes of hydrogeological conditions, a deterioration of chemical and bacteriological quality of water has been observed. Routine bacteriological quality control does not include some specific bacteria which are characteristic for the groundwater environment and can have negative influence on the physical and chemical properties of water. Among such bacteria there are sulphate-reducing bacteria (SRB). In the paper frequency of SRB occurrence in raw water from Cretaceous and Quaternary formations and in treated water has been described. It has been proved that bacterial consortium isolated from groundwater show preference to sodium lactate as a main source of carbon and energy. SRB have a negative influence on organoleptic properties of water quality and the technical condition of distribution net, the water should be disinfected. It has been proved that non-reagent methods, like UV radiation and microfiltration, are effective for SRB elimination from groundwater.

16

Water quality status along the Liangtan River and control planning alternatives for pollution reduction

86%

Gong D., Gao X., Ntakirutimana T., Guo J., Li K.

Polish Journal of Environmental Studies

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2013

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tom 22

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nr 4

The aim of this research is to assess the water quality of the Liangtang River. Water samples were collected from seven sampling stations and four heavy metals (copper, lead, zinc, and chromium) were determined by spectroscopic technique. Physical and chemical parameters, including pH, DO, NH+4, TN, TP, and COD also were determined from seven water sampling stations sited along the river. It has been found that chemical oxygen demand (CODcr), ammonia nitrogen (NH+4-N), total nitrogen (TN), and total phosphorus (TP) in upstream sites were lower than those of the downstream sites, indicating pollutants being discharged along its course. Analyses also have shown that CODcr, NH+4-N, TN, and TP have a very significant positive correlation between each other, while NH+4-N, TN, and TP have a negative correlation with DO. The major sources of pollution in Liangtan River are urban wastewaters, wastewaters from industries, and other anthropogenic activities along the river. We proposed the strategies that can be applied for pollution reduction.

17

Jakosc i ochrona wod w woj.podkarpackim

86%

Janusz M.

Biuletyn Informacyjno-Handlowy. Ośrodek Doradztwa Rolniczego Boguchwała

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2005

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nr 05

21

18

Effect of small water reservoir on quality and usable values of surface waters

86%

Policht-Latawiec A., Bogdal A., Pudlo M.

Teka Komisji Ochrony i Kształtowania Środowiska Przyrodniczego

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2013

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tom 10

19

Modelling River Sosiani's water quality to assess human impact on water resources at the catchment scale

86%

Chibole O. K.

International Journal of Ecohydrology and Hydrobiology

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2013

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tom 13

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nr 4

20

Phytocenotic structure and physico-chemical properties of a small water body in agricultural landscape

86%

Sender J., Kulak A.

Acta Agrobotanica

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2014

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tom 67

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nr 2

Small water bodies, until recently considered as wasteland, are an essential element of the so-called small water retention. Their main use can vary significantly, but they always play a positive role by increasing water resources and enhancing the natural values of the landscape. Moreover, by increasing biodiversity thanks to plants forming habitats for many species of flora and fauna, small water bodies act as a biofilter, improving water quality. But these small reservoirs belong to the groups of waters that are most exposed to damage, especially within the catchment area. Because of the invaluable role of small farmland water bodies, a study was undertaken to investigate their phytocenotic structure. In addition, an attempt was made to assess the level of threats and to indicate their role in the development of habitat conditions. The investigated reservoir was created in 2007. Before that time, it functioned as a part of the Zemborzycki reservoir, as they were close to each other. Almost the entire surrounding of this small reservoir consisted of farmland. In 2011 a revitalization project was carried out in the reservoir. Plants typical for wetland habitats were mainly introduced, while synanthropic vegetation was removed. Based on chemical and physical analyses, it can be concluded that the investigated reservoir serves as a natural biofilter thanks to the qualitative and quantitative changes in the structure of macrophytes. After the revitalization project, the investigated pond gained new aesthetic and ecological qualities.

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