Paper 1 · People, Development and Environment
UGC NET December 2021 June 2022 (22.09.2022) Shift-II
Which of the following pesticides is expected to persist in the environment for a longer period as compared to others?
ADieldrin ✓ Correct
BParathion
CMalathion
DCarbaryl
Correct answer: (A) Dieldrin — The answer is dieldrin.
Explanation
★The answer is dieldrin.
★Dieldrin belongs to the organochlorine group of chemicals, like DDT.
★Organochlorines are very stable and break down only slowly in nature.
★So dieldrin persists in the environment for a longer period than the others.
★The other pesticides degrade comparatively quickly.
★This long persistence is why organochlorines are of special concern.
★So the answer is dieldrin.
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