Status and fuzzy comprehensive assessment of combined heavy metal and organo-chlorine pesticide pollution in the Taihu Lake region of China

被引：111

作者：

Shen, GQ

Lu, YT ^{[1
]}

Wang, MN

Sun, YQ

机构：

[1] Shanghai Jiao Tong Univ, Coll Agr & Biol, Dept Environm & Resource, Shanghai 201101, Peoples R China

[2] Taihu Agr Environm Protecting Monitoring Stn, Suzhou, Peoples R China

来源：

JOURNAL OF ENVIRONMENTAL MANAGEMENT | 2005年 / 76卷 / 04期

基金：

中国国家自然科学基金;

关键词：

fuzzy comprehensive assessment; heavy metals; organo-chlorine pesticides; combined pollution;

D O I：

10.1016/j.jenvman.2005.02.011

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The status of combined heavy metal and organo-chlorine pesticide (OCPs; i.e. HCH and DDT) pollution was investigated and the soil environmental quality of the Taihu Lake watershed, one of the most developed regions in China, was evaluated using a fuzzy comprehensive assessment. Statistical analyses showed the presence of combined pollution in the soil. At many sampling sites, heavy metal concentrations were above corresponding background values, indicating the effects of extraneous pollutants. It has been over 20 years since China banned the use of OCPs, but they can still be found in soil samples of this region. HCH levels at all investigated sites were below the Chinese Environmental Quality Standard for Soils. Fuzzy comprehensive assessment showed that the overall soil quality in this region could be categorized as class I. Nevertheless, the high coefficients of variation for levels of DDT, Cd and Hg indicated the existence of some point-source pollution. Continuous monitoring and further studies of the region are recommended to prevent pollution of farmland from these sources. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：355 / 362

页数：8

共 21 条

[1] DISTRIBUTION OF ORGANOCHLORINE PESTICIDES IN THE EGYPTIAN AQUATIC ECOSYSTEM [J].