Organochlorine compounds

Organochlorine compounds are organic molecules containing one or more carbon-chlorine bonds. The family includes organochlorine insecticides and pesticides as well as solvents such as chloroform and methylene chloride. In agriculture and food storage, organochlorine insecticides were once widely applied, but many persist for years in soil, water, and animal tissues, accumulating through food chains. Their environmental persistence led to bans or severe restrictions on notorious examples. In food safety, residue monitoring targets these legacy contaminants in fatty foods such as dairy, meat, and fish, where they concentrate. Understanding organochlorine behavior remains essential for managing long-term contamination of the food supply.