OCCURRENCE OF POLYCHLORINATED BIPHENYLS IN WATER AND SEDIMENT COLLECTED FROM CUA DAI, HOI AN CITY, COASTAL AREA OF QUANG NAM PROVINCE

Abstract

    Polychlorinated biphenyls (PCBs) are chemicals listed in the Stockholm Convention as agroup of persistent organic pollutants (POPs) due to their persistent and long - rangetransport nature as well as toxic biological effects. This study presents a survey data on theresidue concentrations of PCBs in water and sediment samples collected at 4 locations in CuaDai, a coastal area in Quang Nam province, middle of Vietnam during 2013 - 2014. TotalPCB concentrations ranged from 0,2 - 5,2 μg/l in water samples and 192 - 1750 μg/kg dryweight in sediment samples. Concentrations of PCBs in water collected during rainy seasontend to be higher than those collected in dry season, while residue levels in sediment showedless seasonal variation.