西昌学院学报(自然科学版)
西昌學院學報(自然科學版)
서창학원학보(자연과학판)
JOURNAL OF XICHANG COLLEGE(NATURAL SCIENCE EDITION)
2013年
1期
24-28
,共5页
土壤%重金属%污染%尼梅罗污染指数
土壤%重金屬%汙染%尼梅囉汙染指數
토양%중금속%오염%니매라오염지수
Soil%Heavy Metal%Pollution%Nemero pollution index
首先利用MATLAB软件绘制出某城市城区8种重金属浓度的等高线图,得出各种重金属元素在该城区的空间分布,初步得出5个区各重金属污染的程度.然后,进一步利用尼梅罗综合污染指数法对各类区的污染程度进行量化,得出各类区各种重金属的污染等级.利用污染综合评价表,分析该城市表层土壤的重金属污染主要原因.
首先利用MATLAB軟件繪製齣某城市城區8種重金屬濃度的等高線圖,得齣各種重金屬元素在該城區的空間分佈,初步得齣5箇區各重金屬汙染的程度.然後,進一步利用尼梅囉綜閤汙染指數法對各類區的汙染程度進行量化,得齣各類區各種重金屬的汙染等級.利用汙染綜閤評價錶,分析該城市錶層土壤的重金屬汙染主要原因.
수선이용MATLAB연건회제출모성시성구8충중금속농도적등고선도,득출각충중금속원소재해성구적공간분포,초보득출5개구각중금속오염적정도.연후,진일보이용니매라종합오염지수법대각류구적오염정도진행양화,득출각류구각충중금속적오염등급.이용오염종합평개표,분석해성시표층토양적중금속오염주요원인.
Firstly,a contour map of the 8 kinds of heavy metal concentration of urban area of a city is drawn using the MATLAB software to get the spatial distribution of different kinds of heavy metal element in the city,and the preliminary conclusion of the pollution degree in 5 districts. What’s more,Nemero comprehensive pollution index method is used to qualify the pollution degree of various areas,and to achieve the pollution grade of all kinds of heavy metal in each area at the same time. The main cause of the heavy metal pollution in the surface soil of the city is analyzed by using the table of the comprehensive evaluation of pollution.
