Accumulation of polychlorinated biphenyls in the selenga river delta

The levels of PCBs were determined in the soft tissues of bivalved mollusks, liver of fish, sediments and surface waters of the Selenga River delta (the Bay Sor Cherkalov) using modern method of gas chromatography-mass spectrometry. The sources of PCBs inputs were identified in the aquatic ecosystem. The high degree for accumulation of PCBs in liver of fish were determined.