摘要
系统采集惠楼山药种植地及其周边对照区的土壤样品53个,分析样品中的Pb、Zn、Cu、Cr、Cd、Ni等重金属元素的含量。在对区域环境内的各单项污染指标进行分级评价的基础上,考虑到各单项污染指标在总评价中的地位,将各单项污染指标的作用综合起来,建立了Fuzzy概率模型,对土壤重金属污染进行了综合评价。结果表明:惠楼山药种植地重金属污染现状稍好于其周边地区,但仍属于重污染。产生重金属污染的主要原因是Cd的严重超标。
53 soil samples were collected from yam planted area in Huilou and its periphery. Heavy metals＇ contents such as Pb, Zn, Cu, Cr, Cd, Ni in each sample were determined. Based on the classification and evaluation of the single factor deciding index, according to the importance of each single factor, added together the function of each single factor to establish the Fuzzy probability method model to evaluated the comprehensive pollutionof of soil heavy metals. The results indicated that the Huilou yam planted area was polluted heavily, but it was better than the surrounding areas, and the main pollution index was Cd.
出处
《化学分析计量》
CAS
2011年第5期77-81,共5页
Chemical Analysis And Meterage
关键词
污染综合评价
Fuzzy概率法
土壤重金属
evaluation of comprehensive pollution, Fuzzy probability method, soil, heavy metal
