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Yin Yanchun, Wang Lilin, Xiao Hong, Li Yuanwei, Peng Hong, Qi Hui, Deng Shihuai. Characteristics and sources of heavy metal pollution in urban, suburban and rural domestic waste of Chengdu, China[J]. Chinese Journal of Environmental Engineering, 2015, 9(1): 392-400. doi: 10.12030/j.cjee.20150165
Citation: Yin Yanchun, Wang Lilin, Xiao Hong, Li Yuanwei, Peng Hong, Qi Hui, Deng Shihuai. Characteristics and sources of heavy metal pollution in urban, suburban and rural domestic waste of Chengdu, China[J]. Chinese Journal of Environmental Engineering, 2015, 9(1): 392-400. doi: 10.12030/j.cjee.20150165
shu

Characteristics and sources of heavy metal pollution in urban, suburban and rural domestic waste of Chengdu, China

  • 1.

    Sichuan Key Laboratory of Agricultural Environmental Engineering/College of Resources and Environment, Sichuan Agricultural University, Chengdu 611130, China

  • Received Date: 22/02/2014
    Accepted Date: 27/11/2013
    Available Online: 30/12/2014
    Fund Project:
  • By taking rapidly developing suburban area as an entry point, this study investigated the physical components, the characteristics and sources of heavy metal pollutions in urban, suburban and rural domestic waste of Chengdu both in summer and winter. It is found that most of the heavy metal concentrations in the domestic wastes of Chengdu are above local soil environmental background values and are greater in summer than in winter. Whether in summer or in winter, Se(0.3~1.1 mg/kg), Cd(0.3~0.9 mg/kg) and Cu (24.9~152.6 mg/kg) are the most importan theavy metal pollutants in urban, suburban and rural domestic waste; while other pollutants such as Pb, Hg and Cr are of different polluting strength in the three areas. The sources of heavy metals in domestic wastes were explored by Pearson correlation analysis and the measurement of heavy metal concentrations in main physical components of domestic wastes.The result shows that Cd is mainly from kitchen waste, dust and plastic; Se maycome from electronic wastes; Cu and Zn come from dust and packing paper; Pb in urban domestic wastes is mainly from dust, plastic and packing paper; Cr and Se in suburban domestic wastes are mainly from dust and Hg is mainly from kitchen waste and dust.
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Characteristics and sources of heavy metal pollution in urban, suburban and rural domestic waste of Chengdu, China

  • Received Date: 22/02/2014
  • Accepted Date: 27/11/2013
  • Available Online: 30/12/2014
Fund Project:

Abstract: By taking rapidly developing suburban area as an entry point, this study investigated the physical components, the characteristics and sources of heavy metal pollutions in urban, suburban and rural domestic waste of Chengdu both in summer and winter. It is found that most of the heavy metal concentrations in the domestic wastes of Chengdu are above local soil environmental background values and are greater in summer than in winter. Whether in summer or in winter, Se(0.3~1.1 mg/kg), Cd(0.3~0.9 mg/kg) and Cu (24.9~152.6 mg/kg) are the most importan theavy metal pollutants in urban, suburban and rural domestic waste; while other pollutants such as Pb, Hg and Cr are of different polluting strength in the three areas. The sources of heavy metals in domestic wastes were explored by Pearson correlation analysis and the measurement of heavy metal concentrations in main physical components of domestic wastes.The result shows that Cd is mainly from kitchen waste, dust and plastic; Se maycome from electronic wastes; Cu and Zn come from dust and packing paper; Pb in urban domestic wastes is mainly from dust, plastic and packing paper; Cr and Se in suburban domestic wastes are mainly from dust and Hg is mainly from kitchen waste and dust.

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