江西农业大学学报2011，Vol.33Issue(3)：608-615,8.
太湖竺山湾湿地表层沉积物重金属的分布特征及其污染评价
Distribution Characteristics and Pollution Assessment of Heavy Metals in the Surface Sediments in Zhushan Bay
摘要
Abstract
For studying the pollution condition of heavy metals of the wetland sediments in Zhushan Bay of Taihu lake, the contents of As, Cd, Cr, Cu, Ni, Pb and Zn in the surface sediments were measured and the pollution degree and the potential ecological harm of heavy metals were analyzed and assessed by using the methods of Geo - accumulation index and potential ecological risk index. The results showed: The average contents of As, Cd, Cr, Cu, Ni, Pb and Zn were 123.32, 2.61, 160.24, 176.78, 183.09, 30. 12 and 269.61 mg/kg respectively, which were all higher than their background values. The Ceo-accumulation index method indicated that As and Cd reached the serious pollution level, Zn was at the moderate pollution level,Cr and Pb reached the lower pollution level, Cu and Ni pollution had different pollution levels in the studied area. The ecological risk index method indicated that about 80% of the studied area reached severe and very severe harm degree and Cd was the main element of potential harm, the follower was As in the studied area.关键词
表层沉积物/重金属/分布特征/污染评价/太湖竺山湾Key words
surface sediments/ heavy metal/ distribution characteristics/ pollution assessment/ Zhushan Bay of Taihu Lake分类
资源环境引用本文复制引用
黄玉洁,张银龙,李文朝,方颖,杨均科,孙雅辉..太湖竺山湾湿地表层沉积物重金属的分布特征及其污染评价[J].江西农业大学学报,2011,33(3):608-615,8.基金项目
林业公益性科研专项(200904001-3)、江苏省环保科研项目(2008013)和江苏省高校自然科学研究重大项目(09KJA180002) （200904001-3）
