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Evaluation of Heavy Metal Pollution in Soils from Nanjing Qixiashan Lead-Zinc Mines

详细信息   
摘要

The characteristics and status of heavy metal contamination in soils from Nanjing Qixiashan lead-zinc mines were investigated and evaluated. Different sampling methods and evaluation criteria were selected for different soil types mainly from open mining area, vegetable field and scenic spot of Qixia Temple. The survey results showed that the soils in the mine area, Qixia Temple and vegetable field were contaminated seriously by Pb, As, Cd and Zn, and the soils in some areas were also polluted by Cu slightly, but no contamination from Cr was found. The Nemerow (multi-factor comprehensive pollution) indexes were all greater than 3, indicating that these three types of soils were suffered from severe contamination. 

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