Proceedings of the Korea Water Resources Association Conference (한국수자원학회:학술대회논문집)
- 2005.05b
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- Pages.1-8
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- 2005
Sediment Pollution of Heavy Metal and Potential Ecological Risk Assessment in Baiyangdian Lake, China
- Li Guibao (Dept. of Water Envir., China Institute of Water Resources and Hydropower Research) ;
- Yang Zhuo (College of Resource and Environmental Science, Agricultural University of Hebei) ;
- Wang Dianwu (Collage of Resource .and Environmental Science, Agricultural University of Hebei) ;
- Hao Hong (China Institute of Water Resources and Hydropower Research)
- Published : 2005.05.01
Abstract
Baiyangdian Lake, the largest freshwater lake in North China, is known as 'Pearl of North China' and 'kidney of North China' fur its abundant products and multiple ecological services. However, from the 1970s, due to the ever-increasing discharge of polluted water from upstream rivers, it has been severely polluted. Sediment Investigation and analysis were conducted on contents of heavy metal (Cu, Zn, Cd and Pb) from Baiyangdian Lake in June 2004. Results showed that pollution situation at downriver regions are more serious than that of upstream regions. The seriously polluted spots are access of Fuhe River, original wastewater reservoir of Tanghe River, densely populated Chunshui Village and Wangjiazhai Village. By using method of the potential ecological risk assessment, the heavy metal evaluation of polluted sediment has been conducted. The results showed that the contents of Cd and Pb were very high in sediment of Baiyangdian Lake. There were extremely stronger ecological risk for Cd and slight- medium ecological risk for Pd. According to the current situation of Baiyangdian Lake, countermeasures and suggestions have been put forward.