城市表层土壤重金属污染状况分析

研究了某城市表层土壤重金属污染问题。首先利用采样点数据和曲面插值方法得到8种重金属元素的城市土壤分布图。接着利用单因子指数法对各城区土壤中每一种重金属元素的污染程度进行评价,再利用内梅罗综合指数法得到各采样点及各城市功能区的综合污染状况。之后,对城市的污染源进行了分析,提出了确定污染源位置的原理和方法。

An Analysis on The State of Soil Contamination by Heavy Metals for a City

This paper studies the issue of soil contamination by 8 heavy metals （As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn ） for a city. Firstly, the spatial distribution of the 8 heavy metals in the city is obtained by the data of collecting points as well as the method of curve interpolation. Then the contamination degree of the heavy metals in each areas of the city is assessed by single factor index method, and the comprehensive contamination degree of the heavy metals in the city is obtained by factor index method. Finally, the sources of contamination of the heavy metals are analyzed and a method to determine their positions is presented.