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作 者:张伟[1,2] 依艳丽[1] 程希雷[1] 常梅[2] 金漫漫[2]
机构地区:[1]沈阳农业大学土地与环境学院,辽宁沈阳110161 [2]阜新高等专科学校农职院,辽宁阜新123000
出 处:《西南农业学报》2010年第1期201-205,共5页Southwest China Journal of Agricultural Sciences
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.
分 类 号:TU985.125[建筑科学—城市规划与设计] X53[环境科学与工程—环境工程]
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