Study of Long-range Trans-boundary Air Pollution of PM2.5 by Soft rime ice collected in Shikoku Island, Japan
| Project/Area Number |
26340084
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Environmental risk control and evaluation
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| Research Institution | The University of Tokushima |
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Principal Investigator |
IMAI Shoji 徳島大学, 大学院社会産業理工学研究部(理工学域), 教授 (50232591)
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 越境汚染 / 石炭燃焼排出物 / 有機イオウ化合物 / 樹氷 / 重金属 / 石炭飛灰 / 環境分析 / 雪 / PM2.5 / 降水 / 起源解析 / 硫黄 / 大気エアロゾル / 環境化学 / 山岳研究 / 長距離輸送機構 / 越境大気汚染物質 / 長距離輸送物質 / 環境PM2.5粒子組成 / SEM-EDX |
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| Outline of Final Research Achievements |
Coal combustion exhausts transported from northeast Asia region were found in rime ice and snow collected on the summit of mountain (1400 m alt.) in Shikoku Island. The coal combustion with no exhaust purification specifically emits 1) aerosol particulates including cadmium and lead, 2) gaseous pollutants such as SO2 converting to sulfate, 3) products of incomplete combustion, and 4) inorganic small spherical particles (ISPs) from power plants. It was found in the rime and snow that organic sulfur species indicates to
a proof of the coal exhaust. A methodology for determination of generating area in northeast Asia was proposed by the chemical composition of the ISPs, heavy metals and sulfate ion concentration based on meteorological information. It can be concluded that the generating areas of air pollution were the region of Huabei of China and the south area of northeast China.
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Report
(5 results)
Research Products
(19 results)
