The most important necessity for life is water. Shortage of clean & fresh drinking water leads to suffering. This is mainly contributed by generation of sewage waste mixed with the water bodies, due to unplanned urbanization and has largely contributed to the causing severe water pollution. Pollutants discharged in waste waters can be toxic to aquatic life and cause natural waters to be unfit t...

The Chesapeake Bay is North America's largest and most biologically diverse estuary. It has provided a rich bounty of crabs, shellfish, and fish, and high quality recreational opportunities. However, the Bay living systems have been increasingly stressed over time by the pressures of growing populations—there are over 20 million people in the 166,534 km 2 mile watershed—industrial pollution, at...

The affordable and effective treatment of wastewater is critical issue for the developing countries. Various conventional treatment techniques; both biological and nonbiological are being tried. Disposal of domestic sewage of about 29000 MLD from cities and towns is a biggest source of pollution of water bodies in India. Chemical oxygen demand is the amount of oxygen required for the organic ma...

Samples of water and barnacles Amphibalanus amphitrite were collected from Recife, Brazil, to assess if it accumulates total (TC) and thermotolerant coliforms (TTC) related with sewage pollution. The Most Probable Number (MPN) values and the standard procedures for examination of shellfish were used. Comparatively with the water samples, the highest coliform values came from the barnacles, with...

Against a backdrop of rising sea temperatures and ocean acidification which pose global threats to coral reefs, excess nutrients and turbidity continue to be significant stressors at regional and local scales. Because interventions usually require local data on pollution impacts, we measured ecological responses to sewage discharges in Surin Marine Park, Thailand. Wastewater disposal significan...

background: contamination of water by toxic chemicals has become commonly recognized as an environmental concern. based on our clinical observation in mashhad, northeastern iran, many people might be at risk of exposure to high concentrations of toxic heavy metals in water. because wastewater effluents as well as water wells have been commonly used for irrigation over the past decades, there ha...