RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2010, Vol. 19 >> Issue (2): 209-.

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FUZZY MATHEMATICS GEOCHEMISTRY ASSESSMENT ON ENVIRONMENTAL QUALITY BASED ON INDEXWEIGHT DETERMINATION OF ELEMENT TOXICITY：A CASE STUDY OF AIR DUST NEAR GROUND IN CHENGDU ECONOMIC REGION

SHI Zeming1|2| NI Shijun1|2| ZHANG Chengjiang1|2| TAN Xiaolian1| GAO Zhiyou1|2
    

  1. (1.Department of Geochemistry|Chengdu University of Technology|Chengdu 610059|China；
    2.Key Laboratory of Nuclear Techniques in Geosciences|Chengdu 610059|China)
  • Online:2010-02-20

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Abstract:

By using fuzzy mathematics method，the geochemical assessment on environmental quality of air dust near ground in Chengdu economic region was performed according to indexweight determination of element toxicity.The result shows that for cities，the atmospheric environment qualities（AEQ） of cities including Chengdu，Leshan，Meishan are fine，belonging to the first order of clean level；AEQ of Meishan and Yaan fall in the second order of safety level；AEQ of Deyang belongs to the third order of alarm level，which should be paid more attention to.As for districts，the AEQ of Mianyang and Meishan are fine，belonging to the first order of clean level；Deyang and Yaan fall in the second order of safety level；Chengdu and Leshan belong to the third order of alarm level.

Key words: element toxicity/ fuzzy mathematics/ quality assessment/ air dust near ground

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