南通市城市土壤铅污染特征研究

摘要

对南通市城市五大功能区的土壤进行采样测定，对南通市城市不同功能区的土壤铅含量进行分析和评价。结果表明，南通市城市土壤总体未受到严重的铅污染，但工业区受到中度污染，商业区和老居民区受到轻度污染，风景区和农业区未受到明显污染。说明南通市城市交通运输和工业“三废”是土壤中铅污染的主要来源。%To explore the distribution of the lead in soils of Nantong City,the city was divided into five zones.In each zone,soil samples were randomly collected by triple sub sampling technique and determined .The results indicated that no significant heavy lead pollution occurred in the study area as a hole.Slight enrichment of lead,however,it was found in the soils of inner commercial and inner residence.The soil pollution of lead in the industrial zone was characterized by medium concentration.The dramatic soil pollution of lead in the preserved scenery zone and agricultural zone was not founded.The results showed that the city traffic and industry pollution were the main origin of the lead soil pollution of Nantong city.