大气降尘中痕量金属元素铜、铅、锌、铬的形态分析

SPECIATION OF COPPER,LEAD,ZINC,CHROMIUM IN DUST

运用Ｔｅｓｓｌｅｒ形态分类法和石墨炉原子吸收分光光度法测定了土壤和大气降尘中痕量金属元素Ｃｕ、Ｐｂ、Ｚｎ、Ｃｒ不同存在形态的含量，结果表明，Ｃｕ、Ｐｂ、Ｃｒ在降尘中均有不同程度的富集．Ｃｕ、Ｐｈ、Ｚｎ、Ｃｒ在土壤和降尘中的形态分布规律有所不同．讨论了不同存在形态对人体和环境的危害．

Various species of four heavy metals Cu, Pb, Zn, Cr in dust and soil are discussed byAtomic Absorption Spectrometry (AAs). Harm to people and environment of various speciesis also discussed. The results indicate a different enrichment of Cu, Pb, Cr in dust and thespecies distribution of Cu, Ph, Zn, Cr in soil is different in dust.