Study on Contaminated Site Risk Classification Based on the Set Theory

Abstract:

The risk assessment process of city contaminated sites is full of uncertainties, objective randomness of system, incompleteness selected evaluation factors and accuracy of monitoring data are easy to result in distortion from this process, so it can not reflect the actual risk situation objectively. After considering the potential ecological risk and human health risks from site contamination synthetically, in this paper, we use the hierarchical evaluation index for dividing the risk level of contaminated site, identified the weights of each layer from every indicators by Analytic Hierarchy Process (AHP).And used the fuzzy clustering to establish the evaluation index set, at the same time, we quantified the evaluation index, the risk level of contaminated sites is divided into low, medium, heavy, heavier and serious according to the value of comprehensive evaluation index, constructed a set of site contamination risk analysis model based on uncertain information .

• Periodical: Applied Mechanics and Materials (Volumes 644-650)
• Pages: 6321-6326
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.644-650.6321
• Online since: September 2014
• Authors: Dan Wu*, You Yuan Chen, Jin Jun Li
• Keywords: Analytic Hierarchy Process (AHP), Classification, Contaminated Sites, Risk Assessment

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