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KAKEN_26340010seika.pdf
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Title |
Title |
実環境大気中エアロゾルの帯電状態の解明
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Kana |
ジツカンキョウ タイキチュウ エアロゾル ノ タイデン ジョウタイ ノ カイメイ
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Romanization |
Jitsukankyo taikichu earozoru no taiden jotai no kaimei
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Title |
Elucidation of the electrostatic charging state of ambient aerosols
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奥田, 知明
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Kana |
オクダ, トモアキ
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Romanization |
Okuda, Tomoaki
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Affiliation |
慶應義塾大学・理工学部・准教授
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Research team head
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科研費研究者番号 : 30348809
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Lenggoro, Wuled
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Kana |
レンゴロ, ウレット
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東京農工大学・大学院工学研究院・准教授
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Research team member
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科研費研究者番号 : 10304403
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藤岡, 謙太郎
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フジオカ, ケンタロウ
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Fujioka, Kentaro
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岡久, 峻一
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オカヒサ, シュンイチ
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Okahisa, Shunichi
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北川, みどり
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キタガワ, ミドリ
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Kitagawa, Midori
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高島, 拓
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タカシマ, タク
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Takashima, Taku
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吉田, 哲郎
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ヨシダ, テツロウ
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Yoshida, Tetsuro
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Research team member
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郡司, 裕真
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グンジ, ユウマ
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Romanization |
Gunji, Yuma
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Research team member
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2017
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科学研究費補助金研究成果報告書
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2016
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Abstract |
大気エアロゾルは, 呼吸によって生体内に入り込み健康に悪影響を及ぼすことが知られている。エアロゾルの帯電状態については, それが粒子の生体沈着に関わるため重要であるにも関わらず, ほとんど研究が進んでいない。そこで本研究では, 実環境大気中エアロゾルの帯電状態を解明することを目的として, その計測手法の開発を行った。平成26年度は, 表面電位センサ法とファラデーケージ法を並行して利用した実験, 平成27年度は, Kelvin Probe Force Microscopy(KPFM)を用いたエアロゾル個別粒子の帯電状態測定方法の開発, 平成28年度は, 電気移動度法を用いたエアロゾルの帯電状態の測定を進めた。
Exposure to atmospheric aerosols is considered a serious concern for human health. To understand the adverse effects of aerosol particle more accurately, we need to know its physico-chemical properties. In particular, it has been reported that the deposition of particles in the respiratory tract could be enhanced by the surface charge of particulate matter. In this study, we tried to elucide the electrostatic charging state of ambient aerosol particles. In FY2014, we measured the net electrostatic charging state of PM2.5 collected on filter media using two independent methods, a Faraday cage method and a surface potential measurement. In FY2015, we developed a measurement method of the electrostatic charging state of individual ambient aerosol particles using Kelvin probe force microscopy (KPFM). In FY2016, charging state of aerosols was measured using an electrical mobility method with parallel electrode plates.
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研究種目 : 基盤研究(C)(一般)
研究期間 : 2014~2016
課題番号 : 26340010
研究分野 : 環境化学, 大気化学, 微粒子工学
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