Content of 13 elements (As Cu Pb Zn Hg Cd ect. ) in all samples were measured by ICP-AES and spectrophotometer. EF and CMB receptor model is used to make source apportiontment of the dustfall.

• 用ICP-AES法和分光光度法测定样品中As、Hg、Cr、Cu、Pb、Zn、S、Cd、Co、Mn、Ni、Sr、Al等13种元素的含量;