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《热带亚热带土壤科学》 1994-03
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Pollution of Mercury, Copper and Lead in Sediment of Guangzhou Reach of Pearl River and Its Relationship with Accumulation of Organic Matter and Sulphide

Zheng Xijian(Environmental Monitorillg Central Station of Guangzhou City, Guangzhou 510030)  
Results from the monitoring of the pollution of organic matter, sulphide, Hg, Cu and Pb in sediment of Guangzhou reach of the Pearl River shows that,the contents of the pollutants are 20. 8-74. 4 g/kg for organic matter, 28. 7- 538 mg/kg for sulphide 10. 07-0. 74 mg/kg for Hg, 20. 9- 101mg/kg for Cu, 14. 2-917mg/kgfor Pb; the sectional distributions of them appear increase progressively from.upperreach to middle reach, and decrease progressively from middle reach to lower reach; the most serious pollution is basically at the three sections at Liede, Guangzhi and Huangsha; the pollution degree order of the pollutants is sulphideHgCuPb. Correlation analysis also shows that the relationships of Hg and Cu with organic matter and sulphide are extremely significant, indicating that the accumulative amounts of Hg and Cu increase with the increase in the accumulation of organic matter and sulphide in the sediment, and meaning that the pollutions become more serious.
【CateGory Index】: X53
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