Search results

1

The kinetic reduction of Cr(VI) by yeast Saccharomyces cerevisiae, Phaffia rhodozyma and their protoplasts

100%

Chwastowski J., Kołoczek H.

Acta Biochimica Polonica

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2013

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vol. 60

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issue 4

829-834

EN

Chromium in the sixth oxidation state may easily penetrate cellular membranes via non-specific sulfate transporters due to its tetrahedral symmetry (high similarity to SO42- and HPO42-). This feature makes chromium a toxic and hazardous pollutant responsible for the deterioration of midland water quality. The aim of the study was to evaluate the capacity of two yeast species - Saccharomyces cerevisiae and Phaffia rhodozyma - and their protoplasts to reduce Cr(VI) to lower oxidation states. The study also deals with the behavior of the yeasts upon the presence of elevated sulfate ions as a competitive inhibitor of chromate transport by the sulfate transporters. The chromate-reducing activities were monitored by determination of Cr(V) free radical form with the use of L-band (1.2 GHz) EPR (electron paramagnetic resonance) spectroscopy. It was observed that both of the studied yeast strains exhibited the ability to reduce Cr(VI) applied at 4 mM. The cells of P. rhodozyma showed about 3.5 times higher reduction than S. cerevisiae. The reduction efficiency was significantly improved when the protoplasts of both strains were used and reached 100% in the first 10 minutes of the reduction process which suggests that the cellular wall may have a notable influence on the uptake and/or inhibition of chromium reduction process. The reduction effect of P. rhodozyma cells and protoplasts may be associated with the more sufficient production of metabolites (such as glutathione and cysteine), which may also be responsible for the increased tolerance of the strain towards high concentrations of toxic chromium.

2

Pollution Determined by Using Magnetic Susceptibility Measurements: A Case Study from İzmir-Aliağa

100%

Kamacı Z., Uysal G.

Acta Physica Polonica A

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2017

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vol. 132

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issue 3

487-489

EN

Wherever industrial development exists, environmental pollution increases day by day. The heavy metals play an important role in soil and environmental pollutions and directly affect the human being lives. In this study, we determine pollutions resulting from heavy metal particles emanating from the brake discs pads of the vehicles on high ways and nearby factories. The field work was carried out in İzmir-Aliağa industrial area. Magnetic susceptibility measurements were done at a long profile crossing the İzmir-Çanakkale highway that goes through the study area. Here, we have determined the effect of heavy metals causing pollution in the surroundings. The studies indicate that the average acceptable values of magnetic susceptibility in such areas is about 0-50×10¯⁵ SI. Here we show that the magnetic susceptibility measurement values obtained along our study profile are about 18 times the acceptable ranges.

3

The risk scale estimation of the agricultural environment pollution by heavy metals using the sequential extraction method

88%

Rosada J., Grzesiak J., Schroeder G.

Polish Journal of Chemical Technology

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2007

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vol. 9

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issue 3

151-154

EN

From among various industrial contaminants which can pollute agricultural environment, heavy metals having the capacity of bioaccumulation deserve special attention. The total composition analysis of the heavy metals content in the polluted soils does not provide enough data about their accessibility to the crops cultivated on these soils. It is very important to have the information about the forms in which the examined element exists, because it decides about its mobility and toxicity for the environment. Using the sequential chemical extraction method of Zeien and Brümmer the fractions of Cu, Pb, Zn, Cd and As in the soils influenced by emissions from the Copper Smelter GŁOGÓW, were investigated. The aim of these investigations was to determine the availability assessment of the mentioned elements to the crops cultivated in this region.

4

An application of a water assessment and simulation model in the remediation of the eutrophication capacity of a tropical water system: Case study the Lake Obili in Yaounde (Cameroon)

88%

Ajeagah G. A., B A. W. V., Nkeng G. E.

Journal of Water and Land Development

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2017

|

issue 33

5

Heavy metals in water of Miedwie Lake (West Pomeranian, North-West Poland) and their potentiality in health risk assessment

88%

Daniszewski P.

|

EN

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).

6

Irrigation with treated wastewaters and the protection of Hennaya groundwater – Tlemcen, Algeria

88%

Bemmoussat A., Adjim M., Bensaoula F.

Journal of Water and Land Development

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2019

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issue 43

7

Monitoring of organophosphorus pesticides and remediation technologies of the frequently detected compound (chlorpyrifos) in drinking water

88%

Derbalah A., Ismail A., Shaheen S.

Polish Journal of Chemical Technology

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2013

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vol. 15

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issue 3

25-34

EN

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.

8

Impact of Kishnica mines on pollution of the Graçanka River and water wells near Kosovo

75%

Kadriu S., Sadiku M., Kelmendi M., Aliu M., Mulliqi I., Hyseni A., Kadriu S., Sadiku M., Kelmendi M., Aliu M., Mulliqi I., Hyseni A.

Journal of Water and Land Development

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2021

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issue 48

9

Polyarenes accumulation in tundra ecosystem influenced by coal industry of Vorkuta

75%

Yakovleva E., Gabov D., Yakovleva E., Gabov D.

Polish Polar Research

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2020

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vol. 41

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issue 3

10

Physicochemical characterization of synclinal spring water of Taoura, region of Souk Ahras – North East Algeria

75%

Bouhafs F., Laraba A., Bouhafs F., Laraba A.

Journal of Water and Land Development

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2021

|

issue 50

11

How we can disrupt ecosystem of urban lakes– pollutants of bottom sediment in two shallow water bodies

75%

Grochowska J. K., Tandyrak R., Augustyniak R., Łopata M., Popielarczyk D., Templin T., Grochowska J. K., Tandyrak R., Augustyniak R., Łopata M., Popielarczyk D., Templin T.

Archives of Environmental Protection

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2021

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vol. 47

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issue 4

12

Correlation between physical and chemical parameters of water and biotic indices: The case study the White Drin River basin, Kosovo

75%

Zhushi Etemi F., Çadraku H., Bytyçi A., Kuçi T., Desku A., Ymeri P., Bytyçi P., Zhushi Etemi F., Çadraku H., Bytyçi A., Kuçi T., Desku A., Ymeri P., Bytyçi P.

Journal of Water and Land Development

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2020

|

issue 46

13

Comparative Analysis of Borehole Water Characteristics as a function of Coordinates in Emohua and Ngor Okpala Local Government Areas, Southern Nigeria

75%

Ugwuadu R. N., Nosike E. I., Akakuru O. U., Ejike E. N.

World News of Natural Sciences

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2019

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vol. 24

335-348

EN

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.

14

Implication of particle sizes on bioremediation of crude oil polluted sandy soil in Okolomade part of Niger Delta Basin, southern Nigeria

75%

Jethro N., Sule A., Akudo E. O., Ebong E. D.

World News of Natural Sciences

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2024

|

vol. 52

34-57

EN

Bioremediation is a cost-effective and environmentally friendly technology that exploits the capabilities of microorganisms to degrade organic pollutants leading to complete mineralization. It has become the most preferred technique for oil spill remediation on soil in Nigeria. The study aims to examine the implication of particle sizes on bioremediation of crude oil polluted sandy soil in Okolomade part of Niger Delta Basin, southern Nigeria. Once a week samples were collected for a total of 28 days and were analyzed for chemical and microbial content in an aerobic setting. The classification of the soil samples was done according to the U.S. Bureau of soil classification system, the soil samples were divided into X and Y, where X represented fine to coarse sand and Y represented very fine to coarse sand. The particle size distribution, total hydrocarbon content (THC), total heterotrophic bacteria count (THBC), total organic carbon, soil pH, and available nitrogen and phosphorus were the parameters investigated throughout the 28-day examination of the soil samples. The results shows that the total heterotrophic bacterial count and soil pH increased in all of the soil samples, with samples A for fine to coarse sand (X) and sample E for very fine to coarse sand showing the most significant increase with values of 120 Cfu × 105/g and 266 Cfu × 105/g, respectively. These samples also had the lowest coefficients of uniformity (Cu). The results further reveal that the total hydrocarbons content, available nitrogen and phosphorus, as well as total organic carbon, all decreased noticeably. In contrast to samples with higher coefficient of uniformity values, samples with lower coefficients of uniformity showed a higher decrease in hydrocarbon content, suggesting that particle size distribution affects bioremediation. 0.0899 and 0.0942 were calculated to be the correlation coefficient of total hydrocarbon content vs coefficient of uniformity for fine to coarse sand (X) and very fine to coarse sand (Y). The contaminated soil samples are treated by combining pig manure, NPK 15:15:15, and the microorganism Pseudomonas aeruginosa, the total hydrocarbon content of sandy soil was reduced.

15

Biochemical and medical importance of vanadium compounds

75%

Korbecki J., Baranowska-Bosiacka I., Gutowska I., Chlubek D.

Acta Biochimica Polonica

|

2012

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vol. 59

|

issue 2

195-200

EN

Vanadium belongs to the group of transition metals and is present in the air and soil contaminants in large urban agglomerations due to combustion of fossil fuels. It forms numerous inorganic compounds (vanadyl sulfate, sodium metavanadate, sodium orthovanadate, vanadium pentoxide) as well as complexes with organic compounds (BMOV, BEOV, METVAN). Depending on the research model, vanadium compounds exhibit antitumor or carcinogenic properties. Vanadium compounds generate ROS as a result of Fenton's reaction or of the reaction with atmospheric oxygen. They inactivate the Cdc25B2 phosphatase and lead to degradation of Cdc25C, which induces G2/M phase arrest. In cells, vanadium compounds activate numerous signaling pathways and transcription factors, including PI3K-PKB/Akt-mTOR, NF-κB, MEK1/2-ERK, that cause cell survival or increased expression and release of VEGF. Vanadium compounds inhibit p53-dependent apoptosis and promote entry into the S phase of cells containing functional p53 protein. In addition, vanadium compounds, in particular organic derivatives, have insulin-mimetic and antidiabetic properties. Vanadium compounds lower blood glucose levels in animals and in clinical trials. They also inhibit the activity of protein tyrosine phosphatase 1B. By activating the PI3K-PKB/Akt pathway, vanadium compaunds increase the cellular uptake of glucose by the GLUT4 transporter. The PKB/Akt pathway is also used to inactivate glycogen synthase kinase-3. The impact of vanadium compounds on inflammatory reactions has not been fully studied. Vanadium pentoxide causes expression of COX-2 and the release of proinflammatory cytokines in a human lung fibroblast model. Other vanadium compounds activate NF-κB in macrophages by activating IKKβ.

16

The minimization of impact of oil pollution on soils in the area of railways using glauconite

75%

Chayka O., Petrushka I., Ruda M., Paranyak N., Matskiv O., Chayka O., Petrushka I., Ruda M., Paranyak N., Matskiv O.

Journal of Water and Land Development

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2021

17

Seasonal Distribution of Benthic Foraminifera in Pangandaran Waters, Indonesia

75%

Yuliadi L. P. S., Nurruhwati I., Astuty S.

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2020

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vol. 29

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issue 3

225-239

EN

The rapid development of tourism in Pangandaran causes various problems such as environmental degradation, environmental pollution and waste problems. Environmental changes can be detected using the foraminifera community. The reasearch aims to analyze seasonal distribution of foraminifera in Pangandaran waters. This research uses the survey method and descriptive data analysis. Ecological factors (salinity, temperature, sediment, depth, pH, DO, clarity, waves and currents) have affected their distribution. Temperature values ranged between 26 to 30 ºC. Salinity values ranged between 15.6 to 31 ‰. The pH ranged from 5.47 to 8.75. The DO concentration varied between 5.43 and 9.7 ppm. The average clarity of Pangandaran waters in the west season ranges from 56 to 104.5 cm. In Pangandaran waters, the abundance of the Rotaliina sub-order reaches between 75% to 86.5%, Miliolina 11.6% to 19%, and Textulariina 0.05% to 13.4%.

18

Literature review on emissions from additive manufacturing by FDM method and their impact on human health

71%

Karwasz A., Osinski F., Karwasz A., Osinski F.

Management and Production Engineering Review

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2020

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vol. 11

|

issue 3

19

Fauna bezkręgowa w strumieniach i rzekach miasta Łodzi

63%

Tszydel M., Kruk A., Galicka W., Tybulczyk S., Pietraszewski D., Marszał L., Janic B., Uniwersytet Łódzki K. E. i. Z. K.

Acta Universitatis Lodziensis. Folia Biologica et Oecologica

|

2006

|

vol. Supplementum

EN

In the City of Łódź there are 29 streams and rivers of various sizes, 18 of them named and 11 unnamed, whose total length is 125 km. The aim of the present study was gaining initial knowledge of the abundance and diversity of aquatic macroinvertebrates in water courses in the City of Łódź. Collected aquatic macroinvertebrates were represented by 18 taxons. The highest occurrence was recorded for Dipterans (Chironomidae) (present in all samples), Oligochaeta, Ephemeroptera and Gastropoda. The distribution of macroinvertebrates along the investigated streams varied very much. The Jasień and Łódka Streams turned out least abundant and taxonomically diverse in macroinvertebrates. The opposite were the Bzura and Łagiewniczanka Streams. It confirmed that usually the differences in macroinvertebrate distribution and diversity resulted from pollution of the running waters with domestic and industrial sewage, transforming of certain water courses into sewage-storm canals, regulation including covering of river beds and banks with concrete.

20

Screening of the Spatial Distribution of Risk Metals in Topsoil from an Industrial Complex

51%

Slavík R., Julinová M., Labudíková M.

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vol. 19

|

issue 2

259-272

EN

For the sustainable development of urban areas, it is necessary to identify if environmental pollution exists and where hot spot pollution sources lie. In this study, 280 topsoil samples were collected from an industry estate in Zlin (the Czech Republic). In these samples, the presence of toxic metal was analyzed by energy dispersed X-Ray fluorescence (ED-XRF), and statistical analysis revealed that the major anthropogenic contaminants in the topsoil were Pb, Zn and Sn. Further contaminant analysis by atomic absorption spectrometry (AAS) determined the maximum contents of 28558.47 mg/kg for Pb, 1132.35 mg/kg for Sn and 2865.22 mg/kg for Zn in selected topsoil samples. According to soil pollution index results, the main proportion of topsoil is contaminated, with the possible sources of contamination being traffic and a nearby municipal heating plant. This study proves that the combination of preliminary ED-XRF topsoil analysis, a multivariative statistical approach, AAS analysis and the geographical information system (GIS) is effective and together form a powerful tool for mapping topsoil contamination and conducting an environmental risk assessment.

PL

Dla zrównoważonego rozwoju obszarów miejskich istotna jest identyfikacja istniejących zanieczyszczeń środowiska i ich źródeł. Do badań pobrano 280 próbek wierzchnich warstw gleby z terenów zurbanizowanych miasta Zlin (Republika Czeska). W próbkach określono zawartość metali ciężkich metodą rentgenowskiej analizy fluorescencyjnej (ED-XRF). Na podstawie analizy statystycznej otrzymanych wyników stwierdzono, że główne zanieczyszczenia antropogenne w wierzchnich warstwach gleby to Pb, Zn i Sn. Dalsza analiza zanieczyszczeń metodą absorpcyjnej spektrometrii atomowej (AAS) pozwoliła na określenie maksymalnych stężeń tych analitów w próbkach: 28558,47 mg/kg dla Pb, 1132,35 mg/kg dla Sn i 2865,22 mg/kg Zn. Na podstawie przeprowadzonych badań stwierdzono, że główne źródła zanieczyszczeń to ruch samochodowy oraz pobliska ciepłownia miejska. Przeprowadzone badania dowodzą, że połączenie wstępnej analizy gleb metodą ED-XRF, metod statystyki wielowymiarowej, analizy AAS i Systemu Informacji Geograficznej (GIS) jest skutecznym narzędziem oceny zanieczyszczenia wierzchniej warstwy gleby i oceny ryzyka dla środowiska.

Refine search results

The kinetic reduction of Cr(VI) by yeast Saccharomyces cerevisiae, Phaffia rhodozyma and their protoplasts

Pollution Determined by Using Magnetic Susceptibility Measurements: A Case Study from İzmir-Aliağa

The risk scale estimation of the agricultural environment pollution by heavy metals using the sequential extraction method

An application of a water assessment and simulation model in the remediation of the eutrophication capacity of a tropical water system: Case study the Lake Obili in Yaounde (Cameroon)

Heavy metals in water of Miedwie Lake (West Pomeranian, North-West Poland) and their potentiality in health risk assessment

Irrigation with treated wastewaters and the protection of Hennaya groundwater – Tlemcen, Algeria

Monitoring of organophosphorus pesticides and remediation technologies of the frequently detected compound (chlorpyrifos) in drinking water

Impact of Kishnica mines on pollution of the Graçanka River and water wells near Kosovo

Polyarenes accumulation in tundra ecosystem influenced by coal industry of Vorkuta

Physicochemical characterization of synclinal spring water of Taoura, region of Souk Ahras – North East Algeria

How we can disrupt ecosystem of urban lakes– pollutants of bottom sediment in two shallow water bodies

Correlation between physical and chemical parameters of water and biotic indices: The case study the White Drin River basin, Kosovo

Comparative Analysis of Borehole Water Characteristics as a function of Coordinates in Emohua and Ngor Okpala Local Government Areas, Southern Nigeria

Implication of particle sizes on bioremediation of crude oil polluted sandy soil in Okolomade part of Niger Delta Basin, southern Nigeria

Biochemical and medical importance of vanadium compounds

The minimization of impact of oil pollution on soils in the area of railways using glauconite

Seasonal Distribution of Benthic Foraminifera in Pangandaran Waters, Indonesia

Literature review on emissions from additive manufacturing by FDM method and their impact on human health

Fauna bezkręgowa w strumieniach i rzekach miasta Łodzi

Screening of the Spatial Distribution of Risk Metals in Topsoil from an Industrial Complex