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E-Journal of Chemistry
Volume 8 (2011), Issue 1, Pages 257-263
http://dx.doi.org/10.1155/2011/952040

Monitoring of Trace Metal Pollution in Meenachil River at Kottayam, Kerala (India)

Indu. V. Nair,1 Kailash Singh,2 M. Arumugam,1 and D. Clarson3

1Dept. of Earth Sciences, Annamalai University, Chidambaram, Tamilnadu, India
2Geologist, Geological Survey of India, Hyderabad, A.P., India
3Agro Clinic & Research Centre, Poovanthuruthu, Kottayam, Kerala, India

Received 11 February 2010; Revised 26 April 2010; Accepted 20 May 2010

Copyright © 2011 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The water quality of the Meenachil river at Kottayam has been studied with reference to toxic trace metals during pre and post monsoon seasons for 10 stations during May 2009-September 2009. The metals analyzed include Zinc, Manganese, Iron, Lead, Copper and Cadmium. Among the metals studied, iron, lead and cadmium showed higher concentrations above the permissible limit for drinking water prescribed by Bureau of Indian Standards. Iron and lead showed higher concentration during post monsoon and the cadmium content was high during pre-monsoon. It was observed that the main causes of deterioration in water quality might be due to the discharge of domestic wastes, municipal wastes, terrestrial runoff from seepage sites, agricultural sites and also due to geological weathering process.