Definitions for "Persistent Organic Pollutants"
any one of many synthetic compounds including polychlorinated byphenyls (PCBs), polychorinated dioxins and furans, pesticides such as DDT, chlordane, and heptachlor. They persist in the environment and accumulate through the food chain or in the sediment to a toxic level that is directly harmful to aquatic organisms and humans
Chemicals that endure in the environment and bioaccumulate as they move up trough the food chain. They include organochlorine pesticides, polychlorinated biphenyls (PCBs), dioxins, and furans.
Chemical substances which can have adverse effects and remain in the environment for many years in an unchanged form.