Characteristics of organochlorine pesticides
①, disappear slowly after use;
②It is highly fat-soluble, and the solubility in water is mostly less than 1ppm;
③Chlorobenzene has a stable structure, is not easily degraded by enzymes in the body, and disappears slowly in the body;
④ The products of soil microorganisms also have residual toxicity like the broodstock. For example, DDT is reduced to produce DDD, and DDE is produced after dehydrochlorination;
⑤ Some organochlorine pesticides, such as DDT, can be suspended on the water surface and evaporate together with water molecules. Organochlorine pesticides in the environment harm organisms through bioconcentration and food chain action.