Persistent organochlorine residues in sediments of Hong Kong Victoria harbour and xiamen western bay

摘要

Samples of surface sediment were collected form Victoria Harbour, Hong Kong (Aug. 1992), and Xiamen Western Bay (Nov. 1993), and analysed for organochlorine (OC) pesticides (HCHs, DDTs) and polychlorinated biphenyls (PCBs). Concentration ranges of HCSs, DDTs and PCBs in the survey area of Victoria Harbour were from undetectable to 9.4 μb/kg, 1.38-97 μg/kg and 3.2-81 μg/kg, respectively; those for Xiamen Western Bay were 0.14-1.12 μg/kg, 4.45-311μg/kg and 0.05-7.24μg/kg, respectively. The determined residue levels and distribution patterns of these organochlorines are discussed, and the Harbour and Bay contamination levels are compared.