Polychlorinated biphenyls, (PCBs), chlorofluorocarbons (CFCs) and DDT are also organochlorine compounds which, although banned or discredited, are still evident in the environment.

CNN: Chemicals killing Florida birds, fish

Scientists from the U.S. Fish and Wildlife Service have found that organochlorine chemicals appear to be killing birds and fish near Lake Apopka, Fla.

CNN: Chemicals killing Florida birds, fish