作者: Ryoei KIKUCHI , Yuko SASAKI , Asami OBA , Ayako SATO , Makoto TAKADA
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摘要: Particulate matter (PM) was collected at the Hachimantai mountain range in northern Japan. In present study, origin and transportation course of heavy metal elements were discussed for PMfine PMcoarse, determined by using PIXE (Particle Induced X-ray Emission) back trajectory analyses. The result shows that emitted mainly from artificial sources, compared with PMcoarse natural since Enrichment Factor (EF) value S/K ratio one order higher than PMcoarse. Pb PM Akita has both anthropogenic refining origins, analysis Pb/Br. Furthermore, when air mass transported over Japanese Islands, passed large-scale industrial area As Se gasoline coal combustion, Chinese continent and/or Korea peninsula. NMCC ANNUAL REPORT 16 (2009)