PERSISTENT ORGANOCHLORINE RESIDUES IN SEDIMENTS OF HONG KONG VICTORIA HARBOUR AND XIAMEN WESTERN BAY  

作　　者：陈伟琪 张珞平 徐立 王新红 洪华生 

出　　处：《Chinese Journal of Oceanology and Limnology》1998年第1期36-44,共0页中国海洋湖沼学报（英文版）

摘　　要：Samples of surface sediment were collected from 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 HCHs, DDTs and PCBs in the survey area of Victoria Harbour were from undetactable to 9.4 μg/kg, 1.38-97 μg/kg and 3.2-81 μg/kg,respectively; those for Xiamen Westen Bay were 0.14 1.12 μg/kg, 4.45-311μg/kg and 0.05- 7.24 μg/kg,respectively . The determined residue levels and distribution patterns of these organochlorines are discussed , and the Harbour and Bay contamination levels are compared . Two sediment cores were collected (Oct . 1994) from Xiamen Western Bay for study on the vertical profiles and pollution history of the above contaminants . The vertical profile characteristics indicated that the inner part of Xiamen Western Bay was once polluted by PCBs moderately and that there are still new inputs of DDT .Samples of surface sediment were collected from 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 HCHs, DDTs and PCBs in the survey area of Victoria Harbour were from undetectable to 9.4 μg/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, 4.45–311 μg/kg and 0.05–7.24 μg/kg, respectively. The determined residue levels and distribution patterns of these organochlorines are discussed, and the Harbour and Bay contamination levels are compared. Two sediment cores were collected (Oct. 1994) from Xiamen Western Bay for study on the vertical profiles and pollution history of the above contaminants. The vertical profile characteristics indicated that the inner part of Xiamen Western Bay was once polluted by PCBs moderately and that there are still new inputs of DDT.

关 键 词：ORGANOCHLORINE pesticides POLYCHLORINATED BIPHENYLS sediment concentration distribution 

分 类 号：P[天文地球]