نتایج جستجو برای: water pollutants

تعداد نتایج: 570627  

2018
Lea Piscitelli Pierre-Adrien Rivier Donato Mondelli Teodoro Miano Erik J. Joner

Green roofs are used increasingly to alleviate peaks of water discharge into the sewage systems in urban areas. Surface runoff from roofs contain pollutants from dry and wet deposition, and green roofs offer a possibility to reduce the amounts of pollutants in the water discharged from roofs by degradation and filtering. These pollutants would otherwise enter wastewater treatments plants and ul...

Journal: :Environmental Health Perspectives 1995
L Mott

Children receive greater exposures to environmental pollutants present in air, food, and water because they inhale or ingest more air, food, or water on a body-weight basis than adults do. Communities of color are disproportionately exposed to hazardous wastes, dioxin, and air pollution. Existing data demonstrate that children of color are the subgroup of the population most exposed to certain ...

Journal: :Journal of helminthology 2006
V M Vidal-Martínez M L Aguirre-Macedo R Del Rio-Rodríguez G Gold-Bouchot J Rendón-von Osten G A Miranda-Rosas

The pink shrimp Farfantepenaeus duorarum may acquire pollutants, helminths and symbionts from their environment. Statistical associations were studied between the symbionts and helminths of F. duorarum and pollutants in sediments, water and shrimps in Campeche Sound, Mexico. The study area spatially overlapped between offshore oil platforms and natural shrimp mating grounds. Spatial autocorrela...

Journal: :Journal of environmental biology 2010
Suja P Devipriya Suguna Yesodharan

Photocatalytic degradation of chemical pollutants in water was investigated using semiconductor oxide catalysts, zinc oxide (ZnO) and titanium dioxide (TiO2) and phenol as the substrate. Influence of various parameters such as characteristics of the catalyst, irradiation time, substrate and catalyst concentrations, pH etc. has been studied and optimum conditions for the complete degradation of ...

2013
Chelsea M. Rochman Eunha Hoh Tomofumi Kurobe Swee J. Teh

Plastic debris litters aquatic habitats globally, the majority of which is microscopic (< 1 mm), and is ingested by a large range of species. Risks associated with such small fragments come from the material itself and from chemical pollutants that sorb to it from surrounding water. Hazards associated with the complex mixture of plastic and accumulated pollutants are largely unknown. Here, we s...

2016
W. Faubel T. Schulz B. Seidel E. Steinle H. Ache

Performances of four related techniques i.e., photoacoustic spectroscopy, photothermal deflection, thermal lensing, and photothermal phase shift spectroscopy have been compared to the conventional beam transmittance spectrophotometry. This concerns to the analytical potential in studies of environmental pollutants. Solutions of pesticides in water are used as specimens in this study. Spectropho...

Journal: :Environmental microbiology 2000
I Biran R Babai K Levcov J Rishpon E Z Ron

Online sensitive monitoring of gene expression is essential for understanding microbial life and microbial communities, especially under stress-inducing conditions, such as the presence of environmental pollutants. We describe here a novel use of promoter-based electrochemical biosensing for online and in situ monitoring of gene expression in response to pollutants. As a model system, we used a...

2006
Margaret C. Bell

the main cause for concern about global warming and climate change. Primary air pollutants include carbon monoxide (CO), carbon dioxide, water vapour and un-burnt fuel, hydrocarbons, including volatile and non-volatile organic compounds, oxides of nitrogen, sulphur dioxide (traces), and particulate matter. Pollutants, such as small particles arise not only from the exhaust but also from the roa...

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