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Risk-Based Prioritization Method for the Classification of Groundwater Pollution from Hazardous Waste Landfills

Author

Listed:
  • Yu Yang

    (Chinese Research Academy of Environmental Sciences, A State Key Laboratory of Environmental Criteria and Risk Assessment)

  • Yong-Hai Jiang

    (State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution)

  • Xin-Ying lian

    (Chinese Research Academy of Environmental Sciences)

  • Bei-Dou Xi

    (Chinese Research Academy of Environmental Sciences, A State Key Laboratory of Environmental Criteria and Risk Assessment)

  • Zhi-fei Ma

    (State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution)

  • Xiang-Jian Xu

    (Chinese Research Academy of Environmental Sciences)

  • Da An

    (Chinese Research Academy of Environmental Sciences, A State Key Laboratory of Environmental Criteria and Risk Assessment)

Abstract

Hazardous waste landfill sites are a significant source of groundwater pollution. To ensure that these landfills with a significantly high risk of groundwater contamination are properly managed, a risk-based ranking method related to groundwater contamination is needed. In this research, a risk-based prioritization method for the classification of groundwater pollution from hazardous waste landfills was established. The method encompasses five phases, including risk pre-screening, indicator selection, characterization, classification and, lastly, validation. In the risk ranking index system employed here, 14 indicators involving hazardous waste landfills and migration in the vadose zone as well as aquifer were selected. The boundary of each indicator was determined by K-means cluster analysis and the weight of each indicator was calculated by principal component analysis. These methods were applied to 37 hazardous waste landfills in China. The result showed that the risk for groundwater contamination from hazardous waste landfills could be ranked into three classes from low to high risk. In all, 62.2 % of the hazardous waste landfill sites were classified in the low and medium risk classes. The process simulation method and standardized anomalies were used to validate the result of risk ranking; the results were consistent with the simulated results related to the characteristics of contamination. The risk ranking method was feasible, valid and can provide reference data related to risk management for groundwater contamination at hazardous waste landfill sites.

Suggested Citation

  • Yu Yang & Yong-Hai Jiang & Xin-Ying lian & Bei-Dou Xi & Zhi-fei Ma & Xiang-Jian Xu & Da An, 2016. "Risk-Based Prioritization Method for the Classification of Groundwater Pollution from Hazardous Waste Landfills," Environmental Management, Springer, vol. 58(6), pages 1046-1058, December.
    • Handle: RePEc:spr:envman:v:58:y:2016:i:6:d:10.1007_s00267-016-0749-4
    DOI: 10.1007/s00267-016-0749-4
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