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›› 2013, Vol. 30 ›› Issue (6): 779-785.DOI: 10.7523/j.issn.2095-6134.2013.06.010

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Introduction of CLEA model and analysis of its application to a case in China

ZHANG Min1,2, CAI Wu-Tian2, SUN Lin3, GENG Ting-Ting2, REN Tao2   

  1. 1. College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China;
    2. Center for Hydrogeology and Environmental Geology, China Geological Survey, Baoding 071051, Hebei, China;
    3. Institute of Hydrogeology and Engineering, Chinese Academy Geological Sciences, Shijiazhuang 050061, China
  • Received:2012-09-07 Revised:2013-05-03 Online:2013-11-15

Abstract:

In order to improve China land assessment model, exposure assessment, toxicological assessment, and risk characterization methods of CLEA (contaminated land exposure assessment) model are introduced. Generic assessment criteria mode is used to assess risks of 13 pollutants in a demonstration area in China, and the assessment results are analyzed. It is suggested that the concept of background exposure for threshold effects in the CLEA model may be used to improve China land use risk assessment model.

Key words: contaminated land exposure assessment, threshold effects, background exposure, interaction effects, systemic toxicity effects

CLC Number: