摘要
本文论述了长春、武汉、兰州和青岛四个城市的土壤、植物(叶)和人发铅含量的基本状况,认为大城市的铅污染主要是由来往车辆所形成的流动污染源和排铅工业企业固定污染源所造成的.以此为基础,采用系统聚类法对我国21个大城市进行了环境铅污染状况的分类.
The paper had studied the circumstances of lead pollution for four typical cities including Changchun, Qingdao, Lanzhou and Wuhan, which possess individual environmental characters of nature, society and economics.Testing more than two hundred specimens, the lead quantity of surface soil is averagely 40 to 50ppm, that of plant is averagely 10 to 15ppm, that of human hair is averagely 4 to 6 ppm in the four cities.Through the cluster analysis on the population,output value of colored metallic-smelt and chemical industry, transported amount of goods and traveller , percentage of afforested area, and annual average temperature, rainfal1,tota1 cloud and low cloud quantity, average wind speed in twenty one cities, which may be divided jnto five types that have individual characteristics.
出处
《城市环境与城市生态》
CAS
CSSCI
CSCD
1991年第2期16-20,共5页
Urban Environment & Urban Ecology
