Occurrence of persistent organic contaminants and related substances in Hong Kong marine areas: an overview

被引：69

作者：

Connell, DW

Wu, RSS

Richardson, BJ

Leung, K

Lam, PSK

Connell, PA

机构：

[1] City Polytech Hong Kong, Ctr Environm Sci & Technol, Kowloon, Hong Kong

[2] City Polytech Hong Kong, Dept Biol & Chem, Kowloon, Hong Kong

来源：

MARINE POLLUTION BULLETIN | 1998年 / 36卷 / 05期

关键词：

persistent organic contaminants; PCBs; PAHs; marine sediments; chlorohydrocarbons; hydrocarbons; marine pollution; Hong Kong;

D O I：

10.1016/S0025-326X(97)00201-4

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Data collected between 1987 and 1996 for PCBs and PAHs in marine sediments at 66 stations in 10 water quality zones in Hong Kong were collated and analysed. Statistical analyses indicate that, during 1995 and 1996, the total PCBs and total PAHs were widely distributed in Hong Kong sediments at background concentrations of 5 to 9.8 mu g kg(-1) and 40 to 60 mu g kg(-1) wet weight respectively. Elevated levels of total PCBs (up Is 25.5 mu g kg(-1) wet weight) and total PAHs (up to 116 mu g kg(-1) wet weight) were detected in Victoria Harbour and several other areas. Substantial contamination was found in typhoon shelters (total PCBs, up to 169 mu g kg(-1) met weight; total PAHs, up to 1159 mu g kg(-1) wet weight). Analysis of the data from the 1987 to 1996 time period indicated that total PAHs were declining in most areas, with the estimated half-lives ranging from 2.9 to 10.2 yr. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：376 / 384

页数：9