Ecological Risk Assessment of Heavy Metals in Contaminated Soil based on Engineering Fuzzy set theory
It is not easy to handle relativities of metals toxicology and ecological risk grades,especially,fuzzy in realization of soil heavy metal pollution,when the method suggested by Hakanson was used to assess ecological risk.To explore a better way to solve this problem,certainty in ecological risk grades was fuzzed through engineering fuzzy set theory,and a fuzzy mathematic model was built.The model was then applied in Xiaoqinling gold mining regional,which was selected as case study and where soil was polluted by heavy metals over decades,and its results were compared with that from Hakanson method.The results showed that the fuzzy mathematic model was a better way for ecological risk assessment of heavy metals in contaminated soil.
Ecological risk assessment Fuzzy mathematic model Heavy metals Soil pollution.
Wu Yaoguo Xu Youning Hu Sihai Zhang Jianghua Li Jianguo
Department of Applied Chemistry,Northwestern Polytechical University,Xian,710072,China Xian institute of Geology and minerals Resources,Xian,710054,China
国际会议
哈尔滨
英文
815-818
2010-07-24（万方平台首次上网日期，不代表论文的发表时间）