Recent knowledge on sources, biomagnification and ecotoxic potential of earlier less studied persistent organic pollutants (POP) is briefly reviewed. Chlorohydrocarbons discussed are techno‐chemicals polychloronaphthalenes (PCN), polychloroterphenyls (PCT), octachlorostyrene (OCS) and hexachlorobutadiene, pulp bleachery wastes chlorocymenes (CYMS), chlorocymenenes (CYMD), alkylpolychlorophenanthrenes (RPCPH), alkylprolychlorobibenzyls (RPCBB) and alkylpolychloronaphthalenes (RPCN), and fish contaminants polychlorofluorenes (PCFL) and fluorenones (PCFLO), alkyl polychlorofluorenes (RPCFL), polychlorodihydroanthracenes (PCDHA) and polychloroanthracenes (PCAN). Aromatic chloroethers discussed are polychloroanisoles (PCA), polychloroveratroles (PCV), polychlorophenoxyanisoles (PCPA), polychlorobiphenyl anisoles PCBA) and polychlorodiphenyl ethers (PCDE). Also sulfur‐containing POPs, chlorinated alkyl sulfones DDS and TDS, methyl sulfone derivatives of PCBs and DDE, polychlorodibenzothiophenes (PCDT) and their alkylderivatives (RPCDT) are reviewed. Of organobromine compounds, polybromoanisoles (PBA) polybromobiphenyls (PBB) and polybro‐modiphenyl ethers (PBDE) are considered. Persistent globally occurring hydroxyl compounds pentachlorophenol (PeCP) and tris(4‐chlorophenyl)methanol (TCP) are included in POPs to be seriously studied as environmental hazard.
New types of environmental POPs
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