title: [Spatial variations of heavy metals in precipitation at Mount Taishan region].
abstract: Zn, Al, Mn, Fe, Pb, Cu, Ni, Cr, As, Cd in rain samples collected from two sites at Mount Taishan region were determined by ICP-MS, to evaluate the spatial variation characteristics of heavy metals in precipitation. Individual rain events were sampled for one whole year from Jan. to Dec. 2006. High concentrations of heavy metals were found at both sites, indicating serious heavy metal pollution. Zn was the most abundant element, accounting for 54% - 57% of the total metals concentrations. Its volume-weighted mean concentrations of precipitation at Mt-top and Mt-foot sites were 92.94 microg/L and 70.41 microg/L respectively. The following elements were Fe, Al and Mn and their concentrations were much higher than toxic heavy metals (As, Cd and Cd) except Pb (8.04 microg/L and 7.79 microg/L at two sites respectively). Comparison results between two sites suggested that heavy metal characteristics of precipitation at two sites were different, due to the influences of different ambient air conditions. Correlation analysis between two sites showed that Al, Mn, Fe, As, Cd, Pb influenced by air mass origin greatly, while Ni, Cu, Zn affected by other different factors.
authors.affiliation: School of Environmental Science and Engineering, Shandong University, Ji' nan 250100, China. wy@sdu.edu.cn
authors.forename: Yan
authors.initials: Y
authors.lastname: Wang
authors.forename: Xiao-Huan
authors.initials: XH
authors.lastname: Liu
authors.forename: Ling-Ren
authors.initials: LR
authors.lastname: Jin
authors.forename: Tai-Xing
authors.initials: TX
authors.lastname: Yue
authors.forename: De-Zhong
authors.initials: DZ
authors.lastname: Wang
authors.forename: Wen-Xing
authors.initials: WX
authors.lastname: Wang
mesh_terms: D011232:Chemical Precipitation; D002681:China; D004784:Environmental Monitoring; D004785:Environmental Pollutants / Q000032:analysis*; D019216:Metals, Heavy / Q000032:analysis*; D011891:Rain / Q000737:chemistry*
chemical_list: D004785:Environmental Pollutants; D019216:Metals, Heavy