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对某城市的5个不同功能区进行土壤采样,并对每个采样点的土壤应用X射线荧光光谱仪测试其8种重金属的含量,利用富集因子计算每个功能区8种重金属的污染程度等级的隶属度,然后利用模糊数学方法对5个功能区的污染程度进行了综合评价,最后得到5个功能区重金属污染程度的排序向量。由此可以判定每个功能区受污染程度,其中工业区和主干道路区重金属污染程度最轻,生活区和公园区重金属污染程度较重。
Soil samples were collected from 5 different functional areas of a city. The contents of 8 heavy metals in soils were measured by X-ray fluorescence spectrometer. The pollution levels of 8 heavy metals in each functional area were calculated by enrichment factor Then, the pollution degree of five functional areas was evaluated comprehensively by fuzzy mathematics method. Finally, the ranking vector of the pollution degree of heavy metal in five functional areas was obtained. This can determine the extent of pollution of each functional area, of which the industrial zone and the main road area of the lightest pollution of heavy metals, living area and park heavy metal pollution levels.