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Element Characteristics and Sources of PM_(2.5) at Mount Dinghu in 2006

YANG Yong-jie~1,WANG yue-si~1,WEN Tian-xue~1,ZHAO Ya-nan~1,LI Jiong~2(1.Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China;2.South China Botanical Garden,Chinese Academy of Sciences,Guangzhou 510650,China)  
To study the characteristics and sources of particles in Pearl River Delta Region,samples of PM_(2.5) were collected by high volume sampler,and elements of the samples were determined by ICP-MS.The results showed that concentrations of Pb,V,Cu,As,Zn and Se were 216.24,15.40,60.56,31.81,432.06 and 8.12(ng·m~(-3)) respectively,those were in high level.Factor analysis on the chemical composition of PM_(2.5) showed that fuel combustion,metal-working industry,ash and sea salt were the main sources of PM_(2.5) in this region.
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