MICROBIAL DEGRADATION OF LINDANE-C14 IN A FLOODED SANDY LOAM SOIL

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Abstract
Lindane-C14 degraded slowly (90 percent recovered) in a sandy loam soil, incubated for 6 weeks under flooded conditions. The degradation products were isolated and identified by gas chromatography and mass spectrometry. The major degradation product was γ-3,4,5,6-tetrachlorocyclohexane (>5%), followed by γ-2,3,4,5,6-pentachlorocyclohex-1-ene (5%), followed by γ-2,3,4,5,6-pentachlorocyclohex-1-ene (<2 percent) and small amounts of 1,2,4-trichlorobenzene, 1,2,3,5− and/or 1,2,4,5-tetrachlorobenzene, and 1,2,3,4-tetrachlorobenzene. Chloro-phenolic metabolites of lindane, observed in plants, insects, and mammals, were not detected in the soil. © Williams & Wilkins 1975. All Rights Reserved.

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