摘要
通过对辽宁省阜新市城区25点取样调查分析,初步了解了城区降尘量以及降尘中重金属铜、镉、铅、锌、砷的含量特征及其空间分布。结果表明,城区降尘量在时间上表现出冬春季多,夏秋季少;在空间上为工业区>商业区>居民区>农业区。研究区域内降尘中几种重金属含量均高于背景值,且冬春季节含量高于秋季含量。
The dust fall amount and concentration and distribution of Cu, Cd, Pb, Zn and As in urban area were determined by investigation and analysis on 25 sampling spots in Fuxin city. The results showed that the dust fall amount was higher in spring and winter than that in summer and autumn season. The following sequence of dust fall amount was obtained ： industrial district 〉 business district 〉 residential place 〉 agricultural district. The concentration of heavy metals in dust fall was higher than the background value, and the concentration in spring and winter season was higher than those in summer and autumn season.
出处
《西南农业学报》
CSCD
北大核心
2010年第1期201-205,共5页
Southwest China Journal of Agricultural Sciences
关键词
阜新
降尘
重金属
含量
Fuxin
Dust fall
Heavy metal
Concentration
