Abiological loss of endosulfan and related chlorinated organic compounds from aqueous systems in the presence and absence of oxygen

摘要

Endosulfan is a cyclodiene orgnaochlorine currently widely used as an insecticide throughout the world. This study reports that the dneosulfan isomers can be readily dissipated from aqueous systems at neutral pH in the absence of biological material or chemical catalysts, in the presence or absence of oxygen. The study showed that aldrin, dieldrin, and endosulfan exhibit bi-phasic loss from water in unsealed and butyl rubber sealed vessels. Half-lives are substantially increased for endosulfan I when oxygen is removed from the incubation vessel.