نتایج جستجو برای: polluted river

تعداد نتایج: 92963  

Journal: :Environmental pollution 2006
Adi Oren Zeev Aizenshtat Benny Chefetz

The Kishon River, the second largest coastal river in Israel, has been severely polluted for several decades. Sediments from upstream and downstream sites of the river were analyzed, lipid-extracted and evaluated for phenanthrene uptake. Total polycyclic aromatic hydrocarbon (PAH) concentration in downstream sediments was 299 microg kg(-1), consisting mostly of petrogenic-derived PAHs. Downstre...

Journal: :Environmental Health Perspectives 1999
H J Albering S M van Leusen E J Moonen J A Hoogewerff J C Kleinjans

At the end of December 1993 and also at the end of January 1995, the river Meuse, one of the major rivers in Europe, flooded and river banks were inundated. We investigated the possible health risks of exposure to heavy metal concentrations in river bank soils resulting from the flooding of the river Meuse at the end of 1993. Soil and deposit samples and corresponding aerable and fodder crops w...

2004
David P. Thoma Satish C. Gupta Marvin E. Bauer

Detailed topographic data collected with an airborne laser scanner can help determine the extent of bank erosion and identify banks that are more vulnerable to bank collapse and thus require stabilization efforts. The Minnesota River which flows through a 95% agricultural watershed has been ranked among the top 20 most polluted rivers in the U.S. Greater than 50% of the sediment load carried by...

2013
Hafizan Juahir Munirah Abdul Zali Ananthy Retnam

Juru River is named as one of polluted river in Malaysia by Department of Environment (DOE) Malaysia up till recent times. The pollution loadings of this river basin come from various point and non-point sources. This study reveals that the water quality of Juru River is very much affected by the industrial activities in this locality area. The principle component analysis (PCA) display that th...

2012
PARASKEVA MICHAILOVA EWA SZAREK-GWIAZDA ANDRZEJ KOWNACKI

The Ojców National Park is situated in southern Poland in an area of Jurassic limestone, which determines the hydrochemistry of the water in the River Pr dnik. The geochemical index of the sediment in the River Pr dnik indicated it is moderately polluted with Pb and Zn, and heavily polluted with Cd compared to unpolluted sediment. The effect of natural and anthropogenic sources on the sediment ...

Journal: :محیط زیست طبیعی 0
زینب شیرچی ساسی دانشگاه شهید بهشتی -پژوهشکده علوم محیطی اصغر عبدلی دانشیار گروه تنوع زیستی و مدیریت اکوسیستم‏ها، پژوهشکدۀ علوم محیطی، دانشگاه شهید بهشتی حسین هاشمی استادیار گروه آلاینده‏های محیط زیست، پژوهشکدۀ علوم محیطی، دانشگاه شهید بهشتی

benthic macroinvertebrates in river are useful indicators for adverse impacts on the catchment and river ecosystems. these organisms integrate many ecological processes in catchment scale. in this study several single and multi metric biotic indices were used based on macroinvertebrates in order to evaluate the water quality of jajrood river. macroinvertebrates as well as water samples were col...

2012
Yanqing Sheng Guoying Sheng Fanzhong Chen Jiamo Fu

Water quality remediation in a heavily polluted tidal river in Guangzhou, South China Yanqing Sheng a , Fanzhong Chen b , Guoying Sheng b & Jiamo Fu b a Key Laboratory of Coastal Zone Environment Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China b State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Aca...

2009

This study summarizes the main results obtained by the research group from the Instituto de Recursos Naturales y Agrobiología de Sevilla during ten years of study in the mine spill affected area of the Guadiamar river (SW Spain). This work is focussed on 1) trace element changes in soil (total and available concentrations) and plants (native and reforested), and 2) evaluation of the effectivene...

Journal: :Applied and environmental microbiology 2010
Ana Alcalá Esmeralda Vizzi Jesús Rodríguez-Díaz José L Zambrano Walter Betancourt Ferdinando Liprandi

The circulation of Aichi virus in a major urban area was demonstrated using molecular detection with samples recovered from a major river polluted with sewage discharges in Caracas, Venezuela. Five out of 11 water samples studied were positive, being classified by phylogenetic analysis as genotype B. Analysis of sewage waters appears to be a useful methodology to uncover the presence of a hithe...

Journal: Pollution 2019

The term bioremediation describes biological machinery of recycling wastes to make them harmless and useful to some extent. Bioremediation is the most proficient tool to manage the polluted environment and recover contaminated river water.  Bioremediation is very much involved in the degradation, eradication, restriction, or reclamation varied chemical and physical hazardous substances from the...

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