CLEA模型及其在中国应用典型案例剖析

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

为构建中国土地风险评价模型,介绍CLEA模型的暴露评估、毒性评估和风险表征方法.采用基本评价模式评价中国某示范区13种污染物,并对评价结果进行分析.提出借鉴CLEA模型中阈值效应本底暴露量的概念,完善中国土地利用风险评价模型的建议.

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 eoncept of background exposure for threshold effects in the CLEA model may be used to improve China land use risk assessment model.