应用物元分析法评价安徽省土壤重金属污染现状

Assessment on Heavy Metal Pollution in Soils of AnHui Province by Matter Element Analysis Model

土壤重金属评价是土壤重金属污染研究的重要方向。本研究改进了土壤重金属污染评价的物元分析模型,并且对评价因子权重的计算方法进行修正,提出了基于污染物浓度和毒性的双权重因子的物元分析评价方法。通过对安徽省主要土壤中重金属的评价,得到如下结果:3种土壤中,黄褐土污染最为严重,其次为黄红壤,污染最轻的为砂姜黑土。

The assessment on heavy metal pollution is an important aspect in the research of heavy metal pollution in soil. This study improved the calculating method of matter element analysis model and the weighing of assessment factors, and put forward a matter element analysis based on two weighing factors, i.e., the concentration and toxicity of the pollutants. The assessment on heavy metal pollution in soils of Anhui province showed that the most polluted soil is yellow-cinnamon soil, followed by yellow-red soil and shajiang black soil in order.