РЕЗЮМЕ Persistent organic pollutants (POPs)1 are organic substances which possess toxic properties, resist degradation in environment for a long period of time, bioaccumulate and are transported through air across international boundaries and deposited far from their place of release. They pose a potential threat to the environment and human health, and the initiation of global actions is necessary for elimination of their production, placing on the market, as well as the reduction of their releases in environment. Bulgaria has signed the Stockholm Convention on POPs (SC) on 23rd May 2001. The