nowadays, with population growth in urban areas, providing safe water and health is considered basic needs of human, alongside the various pollutants due to urban activities, agriculture and industrial areas on adjacent ranges into urban water resources around the environment is such that study necessary to prevent the pollution of water resources and identification of pollution sources shows. ...

Expanding cities are shortening the lapse between the release of treated wastewater into the environment and the uptake by water drinking facilities. Even though wastewater treatment plants usually exceed current discharge standards, the presence of unregulated pollutants in these effluents is of concern (Petrovic et al., 2003). Unregulated contaminants, or emerging pollutants of concern (EPOCs...

Organic pollutants have an adverse effect on the neighboring environment. Industrial activates are the major sources of different organic pollutants. These primary pollutants react with surrounding and forms secondary pollutant, which persists for a long time. The present investigation has been carried out on the surface of activated sawdust for phenol eliminations. The process parameters initi...

The detrimental effects of air pollution on health have been recognized for most of the last century. Effective legislation has led to a change in the nature of the air pollutants in outdoor air in developed countries, while combustion of raw fuels in the indoor environment remains a major health hazard in developing countries. The mechanisms of how these pollutants exert their effects are like...

To assess the overall metabolic alteration of organic pollutants through biological systems in the environment, the basic characteristics of metabolic systems in microorganisms, plants, and animals have been examined. While most of their metabolic activities contribute to reduce the levels of pollutant residues and their toxicities, certain of their activities result in the formation of stable,...

In this paper the algorithm of reappraisal of an ecological standard under intergovernmental power structure forming with the aid of the fuzzy sets theory and interval computing is suggested. Ecological standards of two neighboring regions in an intergovernmental power structure prescribe a legislatively established interval of the maximum permissible pollutants concentration at their territori...

Background The natural environment has suffered high accumulations of pollutants which affect not only the soil, groundwater, rivers, lakes, rainwater routes and air, but also human health due to the formation of unhealthy conditions. Excessive use of pesticides, crude oil spills, discharges of industrial waste, among other xenobiotic compounds accumulate in the environment and become worrisome...

Phytoremediation is a technology that is based on the combined action of plants and their associated microbial communities to degrade, remove, transform, or immobilize toxic compounds located in soils, sediments, and more recently in polluted ground water and wastewater in treatment wetlands. Phytoremediation could be used to treat different types of contaminants including petroleum hydrocarbon...

Environmental pollution in India has increased from uncontrolled emission of chemical pollutants from the Industries, automobiles and non-point sources where modern agricultural practices are used. These chemicals have contaminated the air, water, soil and their residues have been detected in drinking water, food and consumer products. Some of these are very persistent in the environment and ha...

Heavy metals are considered as the most important pollutants of the aquatic environment. In the present study, acute toxicity test was used for the determination of lethal toxicity of Nickel in adult fish, Channa gachua as the test organism. Toxicity test is most reliable for accessing the adverse effect of pollutants on aquatic life. The LC50 values were determined and observed that the values...