STUDIES ON PESTICIDE RESIDUES IN WATER, SOIL, FODDER AND MILK ALONG MUST RIVER BELT
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Date
2013-10
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SRI VENKATESWARA VETERINARY UNIVERSITY TIRUPATI - 517 502. (A.P.) INDIA
Abstract
ABSTRACT:
A study was conducted to estimate residues of certain pesticides of
organochlorines viz., DDT (o,p'- DDE, o,p' - DDD, p,p'- DDT and o,p'- DDT and
Dicofol), HCH (Alpha, Beta, Gamma, Delta), cyclodiene compounds (Aldrin,
Endosulfan Sulphate and Heptachlor) and organophosphates (Triazophos,
Dimetheoate, Chlorpyrifos and Methyl-chlorpyrifos) in soil, water, fodder and milk
samples collected from six zones of Musi river belt area. To evaluate the pollution level
of Musi river, the river belt was divided in to six zones viz., Zone 1 (Attapur to High
court), Zone 2 (Chadhar ghat to Uppal), Zone 3 (Peerzadiguda to Chinna viralla),
Zone 4 (Pillai Palli to Alinagar), Zone 5 (Indriyala to Manimadde), Zone 6 (Musi
reservoir to Wazirabad).
Only soil samples collected hm Zone 1 showed residual levels (in ppm) of
0.06 + 0.005 (0.035 to 0.083), 0.73 * 0.01 (0.675 to 0.791), 1.27 * 0.09 (1.023 to
l.893), 0.14 =k 0.015 (0.098 to 0.243) and 0.55 * 0.02 (0.481 to 0.685) for p,p'- DDE,
o,p'- DDD, p,p'- DDT, o,p' - DDT and Total DDT respectively. Dicofol was present
only in fodder samples of zone 5 at concentration of 0.07 + 0.0007 (0.071 to 0.077).
Among HCH compounds only delta HCH was found in soil samples of Zone 1 at a
concentration of 0.08 *0.003 (0.065 to 0.098). Water, fodder and milk samples from
zone 2 to 6 did not contain any residues of DDT and HCH. None of the samples water,
soil, fodder and Milk from all the 6 zones contain the residues of Cyclodiene
compounds. Among organophosphorus compounds Triazophos was present in soil
samples of zone 1 at a level of 0.03 * 0.001 (0.032 to 0.045) and Dimetheoate was
present in milk samples collected from Zone 6 at a level of 0.13 & 0.006 (0.1 11 to
0.167).
From this study, it can be concluded that all the pesticide residues in soil were
well below the MRL values, whereas Dicofol in fodder and Dimethoate in milk were
slightly above the MRL values specified by EU and CODEX.
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