tailieunhanh - Impacts of Atmospheric Pollution on Aquatic Ecosystems

Mangalore coast is a stretch of about 22 Kms at the western part of the Western Ghats of the Indian peninsula. This area is receiving huge quantity of pollution load from the major industries and factories located nearby. This pollution load is discharged into the sea either directly or through the major west flowing rivers of the region, Nethravathi and Gurupura. The pollution load includes runoff of the sediment, waste from oil refineries, nutrients and pesticides, iron ore residues from the nearby iron are company and chemicals from the chemical factory from the point source. Water quality is also. | About Issues in Ecology Issues in Ecology is designed to report in language understandable by non-scientists the consensus of a panel of scientific experts on issues relevant to the environment. Issues in Ecology was initially supported by the Pew Scholars in Conservation Biology program and is currently supported by the Ecological Society of America. It is published at irregular intervals as reports are completed. All reports undergo peer review and must be approved by the Editorial Board before publication. No responsibility for the views expressed by authors in ESA publications is assumed by the editors or the publisher the Ecological Society of America. Issues in Ecology is an official publication of the Ecological Society of America the nation s leading professional society of ecologists. Founded in 1915 ESA seeks to promote the responsible application of ecological principles to the solution of environmental problems. For more information contact the Ecological Society of America 1707H Street NW Suite 400 Washington DC 20006. ISSN 1092-8987 Impacts of Atmospheric Pollution on Aquatic Ecosystems Issues in Ecology Published by the Ecological Society of America Number 12 Summer 2004 Issues in Ecology Number 12 Summer 2004 Impacts of Atmospheric Pollutants on Aquatic Ecosystems SUMMARY Considerable progress has been made in reducing the discharge of atmospheric pollutants from point sources such as effluent pipes. A more difficult challenge involves identifying and controlling environmental contaminants generated by dispersed or nonpoint sources such as automobile exhaust pesticide applications and myriad commercial and industrial processes. Nonpoint pollutants can travel far from their sources when they are discharged into rivers or enter the atmosphere. While waterborne contaminantshave received growing attention little recognitionhas so farbeen givento the far-rangingenvironmental consequences of toxic substances and nutrients that are transported via the air.