Heavy Metal Research on Sites of Former Machining Industry in Chongqing

Abstract:

Heavy metal pollution of soil has become a main obstacle to the change of land use for the former industrial site. In order to know whether the manufacture activities of machining industry has effect on the nearby soil, 18 former industrial sites were selected and eight heavy metals including mercury (Hg), lead (Pb), arsenic (Ar), cadmium (Cd), chromium (Cr), copper (Cu), nickel (Ni) and zinc (Zn) in soil were analyzed. The monitoring data was collected and analyzed by statistical methods. Besides, human influence degree and Nemerow Index were applied to assess the soil pollution. The result revealed that the average concentration of Hg, Pb, As, Cd, Cr, Cu, Ni, Zn were 0.12 mg/kg, 56.24 mg/kg, 4.86 mg/kg, 0.39 mg/kg, 184.32 mg/kg, 147.44 mg/kg, 46.84 mg/kg and 164.63 mg/kg, respectively. The concentration of Hg, Pb, Cr, Cu, Ni and Zn did not obey the normal distribution, however, As and Cd approximated normal.The soil was disturbed by the heavy metals produced in machining activities.

• Periodical: Advanced Materials Research (Volume 414)
• Pages: 301-305
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.414.301
• Online since: December 2011
• Authors: Zhi Yun Li, Xuan Zeng, Wen Juan Luo, Liang Ke, Pei Yu Huang, Bin Xiang
• Keywords: Former Industrial Site, Heavy Metal, Machining Industry, Soil Assessment

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