Ecology, Environment and Conservation Paper

Vol.07, Issue 01, 2001; Page No.(105-109)

DISTRIBUTION OF HCH RESIDU S IN THE KUTTANAD WETLAND ECOSYSTEM, KERALA

K. Harikrishnan, Sanil George, Sabu Thomas, R. Paulmurugan and M.R. Das Rajiv Gandhi

Abstract

Kuttanad, known as the rice bowl of Kerala, is a unique wetland ecosystem with intensive agriculture operations. Pesticide pollution has become a very serious problem in this region. The present paper reports the HCH residues distributed in different trophic levels of Kuttanad. HCH residues are found to be high in sediments followed by fish, frog, plankton, clam, earthworm, human blood, cowmilk and water. Water-plankton-fish complex showed biological magnification.

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