| Project/Area Number |
26303001
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 海外学術 |
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| Research Field |
Environmental impact assessment
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| Research Institution | Saitama University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
藤谷 雄二 国立研究開発法人国立環境研究所, 環境リスク研究センター, 主任研究員 (20391154)
熊谷 貴美代 群馬県衛生環境研究所, 研究企画係, 独立研究員 (50391826)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥15,470,000 (Direct Cost: ¥11,900,000、Indirect Cost: ¥3,570,000)
Fiscal Year 2016: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2015: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2014: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
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| Keywords | 超微小粒子 / アーティファクト / フィールド観測 / 粒子組成 / 有機マーカー / バイオマス燃焼 / 粒子成長 / 粒子画像解析 / 超微小粒子（PM0.1） / 微小粒子（PM2.5） / 大気微小粒子 / 東南アジア / 発生源寄与率 / 慣性フィルターサンプラー |
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| Outline of Final Research Achievements |
Field sampling and analysis of chemical components in PM2.5 and PM0.1 collected in Hanoi and Chiang Mai were carried out, and the image analysis for PM0.1 was also performed using a transmission electron microscope. Main components in PM2.5 collected in Hanoi were OC, EC and ion components, and inorganic aerosols were almost (NH4)2SO4 and NH4NO3 particles. On the other hand, main components in PM0.1 were OC and EC. Since concentrations of OC and EC components were always high regardless of the season, it was suggested that primary emission by automobiles and motorcycles notably contributed to PM pollutants in Hanoi. When the chemical components in PM2.5 collected in Hanoi were compared with those in Chiang Mai, high concentrations of potassium ion and levoglucosan were confirmed in both areas. Therefore, it means that biomass burning has contributed to composition of PM2.5 in both areas.
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