2012 Fiscal Year Annual Research Report
健康影響が懸念されるＰＭ２．５粒子状物質のわが国風上域での動態把握
| Project Area | Impacts of aerosols in East Asia on plants and human health |
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| Project/Area Number |
20120007
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
兼保 直樹 独立行政法人産業技術総合研究所, 環境管理技術研究部門, 主任研究員 (00356809)
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| Co-Investigator(Kenkyū-buntansha) |
佐藤 圭 独立行政法人国立環境研究所, 地域環境研究センター・広域大気環境研究室, 主任研究員 (10282815)
松見 豊 名古屋大学, 太陽地球環境研究所, 教授 (30209605)
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| Project Period (FY) |
2008-04-01 – 2013-03-31
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| Keywords | 大気質評価 / 長距離輸送 / 微小粒子状物質 / 多環芳香族炭化水素 / PM2.5 |
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| Outline of Annual Research Achievements |
福岡および南西に170km離れた風上域にある福江島において測定された週平均の微小粒子状物質(PM2.5)の組成を比較し、九州北部での都市大気中濃度における長距離輸送分の寄与を見積もった。PM2.5中の(硫酸塩)SO42-濃度は年間を通じて福江島と福岡ではほぼ同じである。これに対して、PM2.5中の(硝酸塩)NO3-の濃度は福江島と福岡では大きく異なり、福江島での微小粒子領域のNO3-濃度はきわめて低く、一方、福岡では寒候期にPM2.5濃度の5～10%を占める程度まで上昇する。これより、PM2.5中の主要成分のうち硫酸塩は広域的汚染、すなわち域外からの長距離輸送に事実上支配されているが、硝酸塩は福岡で発生した都市大気汚染によるものが主体であるといえる。また、福岡では粒子状有機物(TOT-OCより計算)も長距離輸送分が大部分を占めるが、夏季は都市大気汚染による生成分が加わる状況が判明した。
観測された多環芳香族炭化水素(PAH)の発生源情報を含む指標(FLT/FLT+PYR)の福岡市と福江島での季節変化を比べたところ(FLTはフルオランテン、PYRはピレンを表す)、福岡および福江島で観測されたPAHは、いずれも春・冬には石炭由来の成分に富み、夏には石油由来の成分に富んでいた。PAH総量としては福岡と福江島ではきわめて類似した季節変化が見られ、福岡で観測されるPAHのうち無視できない割合を長距離輸送の成分が占めることを示している。
レーザーイオン化マス・スペクトルメータを用いた個別粒子の組成の測定結果から、2010年春季の集中観測期間(2週間)のうちPbを含む粒子を重点的に解析したところ、Pbは多くの場合K, Fe, Na, Znなどと内部混合していることが分かった。石炭燃焼実験で得られたものと同様のスペクトルは観測期間中の全含Pb粒子の春季32%、冬季33%に含まれていた。
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| Research Progress Status |
24年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
24年度が最終年度であるため、記入しない。
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[Journal Article] Transported and Local Organic Aerosols over Fukuoka, Japan2013
Author(s)
Sato, K., Takami, A., Irei, S., Miyoshi, T., Ogawa, Y., Yoshino, A., Nakayama, H., Maeda, M., Hatakeyama, S., Hara, K., Hayashi, M., Kaneyasu, N.
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Journal Title
Aerosol and Air Quality Research
Volume: (in press)
DOI
Peer Reviewed
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[Journal Article] Wavelength- and NOx-dependent complex refractive index of SOA generated from photooxidation of toluene and 1, 3, 5-trimethylbenzene2013
Author(s)
Nakayama, T., Sato, K., Matsumi, Y., Imamura, T., Yamazaki, A., Uchiyama, A.
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Journal Title
Atmospheric Chemistry and Physics
Volume: 13
Pages: 531-545
DOI
Peer Reviewed
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[Journal Article] Analysis of summer-time atmospheric transport of fine particulate matter in Northeast Asia2013
Author(s)
Shimadera, H., Hayami, H., Morino Y., Ohara, T., Chatani, S., Hasegawa, S.. Kaneyasu, N.
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Journal Title
Asia-Pacific Journal of Atmospheric Sciences
Volume: 49
Pages: 1-14
DOI
Peer Reviewed
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[Journal Article] AMS and LC/MS analyses of SOA from the photooxidation of benzene and 1, 3, 5-trimethylbenzene in the presence of NOx: Effects of chemical structure on SOA aging,2012
Author(s)
Sato, K., Takami, A., Kato, Y., Seta, T., Fujitani, Y., Hikida, T., Shimono, A., Imamura, T.
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Journal Title
Atmospheric Chemistry and Physics
Volume: 12
Pages: 4667-4682
DOI
Peer Reviewed
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[Journal Article] Wavelength dependence of refractive index of secondary organic aerosols generated in the ozonolysis and photooxidation of α-pinene2012
Author(s)
Nakayama, T., Sato, K., Matsumi, Y., Imamura, T., Yamasaki, A., Uchiyama, A.
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Journal Title
Scientific Online Letters on the Atmosphere
Volume: 8
Pages: 119-123
DOI
Peer Reviewed
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[Presentation] Analysis of organic components in secondary organic aerosols by chemical ionization mass spectrometry and discussion on oxidation mechanism of isoprene2013
Author(s)
Inomata, S., Tanimoto, H., Sato, K., Hirokawa, J., Sakamoto, Y., Okumura, M., Tohno, S.
Organizer
The 6th International PTR-MS Conference 2013
Place of Presentation
Universitätszentrum Obergurgl, Obergurgl, Austria
Year and Date
2013-02-04
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[Presentation] Field measurement of new polarization optical particle counter capable of measuring particle shape information2012
Author(s)
Kobayashi, H., Hayashi, M., Nakura, Y., Enomoto, T., Miura, K., Takahashi, H., Igarashi, Y., Naoe, H., Nishizawa, T., Nobuo, S., Kaneyasu, N.
Organizer
The American Geophysical Union 45th annual Fall Meeting
Place of Presentation
San Francisco, USA.
Year and Date
2012-12-03
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[Presentation] Regional- and local-scale air pollutions of organic aerosol at urban site in Kyushu Island, Japan2012
Author(s)
Sato, K., Takami, A., Ogawa, Y., Yoshino, A., Suzuki, R., Hatakeyama, S., Hara, K., Hayashi, M., Kaneyasu, N.
Organizer
International Symposium on Aerosol in East Asia and Their Impacts on Plants and Human Health
Place of Presentation
Tokyo University of Agriculture and Technology, Tokyo
Year and Date
2012-11-29
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[Presentation] Analysis of organic components in secondary organic aerosols by proton transfer reaction mass spectrometry and discussion on oxidation mechanism of isoprene2012
Author(s)
Inomata, S., Tanimoto, H., Sato, K., Hirokawa, J., Sakamoto, Y., Okumura, M., Tohno, S.
Organizer
International Symposium on Aerosol in East Asia and Their Impacts on Plants and Human
Place of Presentation
Tokyo University of Agriculture and Technology, Tokyo
Year and Date
2012-11-29
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[Presentation] Chemical characterization of metal-containing aerosols measured with laser Ionization single-particle mass spectrometer in the spring of 2010 in Fukue Island2012
Author(s)
Hidemori, T., Nakayama, T., Matsumi, Y., Yabushita, A., Ohashi, M., Irei, S., Takami, A., Kaneyasu, N., Yoshino, A., Suzuki, R., Yumoto, Y., Hatakeyama, S.
Organizer
International Symposium on Aerosol in East Asia and Their Impacts on Plants and Human Health
Place of Presentation
Tokyo University of Agriculture and Technology, Tokyo
Year and Date
2012-11-29
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[Presentation] 2010年春季長崎県福江島におけるレーザーイオン化個別粒子質量分析計を用いた東アジアから輸送されたエアロゾル化学成分の観測2012
Author(s)
秀森丈寛, 中山智喜, 松見豊, 藪下彰啓, 大橋勝文, 伊礼聡, 高見昭憲, 兼保直樹, 吉野彩子, 鈴木亮太, 湯本弥生, 畠山史郎
Organizer
第18会大気化学討論会
Place of Presentation
ホテルパーレンス小野屋（福岡県）
Year and Date
2012-11-06
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[Presentation] New Particle Formation and Growth Observed at Fukue Island, Japan in March 20122012
Author(s)
Seyoung Kim, Seto, T., Otani, Y., Takami, A., Kaneyasu, N., Fujimoto, T., Okuyama, K.
Organizer
American Association for Aerosol Research 31st Annual Conference
Place of Presentation
Minneapolis, USA
Year and Date
2012-10-08
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[Presentation] PMF Analysis of Urban and Transported Aerosols in Fukuoka, Japan2012
Author(s)
Takami, A., Miyoshi, T., Irei, S., Hara, K., Hayashi, M., Kaneyasu, N.
Organizer
American Association for Aerosol Research 31st Annual Conference
Place of Presentation
Minneapolis, USA
Year and Date
2012-10-08
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[Presentation] Secondary organic aerosol formation from the isoprene ozonolysis: Effect of OH radical scavenger on the radical chemistry2012
Author(s)
Sato, K., Inomata, S., Uchida, R., Imamura, T., Hirokawa, J., Okumura, M., Tohono, S.
Organizer
American Association for Aerosol Research 31st Annual Conference
Place of Presentation
Minneapolis, USA
Year and Date
2012-10-08
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[Presentation] Large scale aerosol transport observed at three different sites in western Japan2012
Author(s)
Takami, A., Irei, S., Miyoshi, T., Sato, K., Shimizu, A., Kaneyasu, N., Hayashi, M., Hara, K., Hatakeyama, S.
Organizer
First China-Japan Aerosol Symposium
Place of Presentation
Kanazawa University Satellite Plaza, Kanazawa
Year and Date
2012-09-28
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[Presentation] Large scale transport of aerosol observed in East China Sea area2012
Author(s)
Takami, A., Irei, S., Miyoshi, T., Sato, K., Shimizu, A., Kaneyasu, N., Hara, K., Hayashi, M., Hatakeyama, S.
Organizer
The 12th International Global Atmospheric Chemistry (IGAC) Open Science Conference
Place of Presentation
China National Convention Center, Beijing, China
Year and Date
2012-09-17
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[Presentation] Optical property analysis of diesel exhaust particles using a three wavelength photoacoustic soot spectrometer2012
Author(s)
Guo, X., Nakayama, T., Matsumi, Y., Yamada, H., Inomata, S., Tonokura K.
Organizer
The 12th International Global Atmospheric Chemistry (IGAC) Open Science Conference
Place of Presentation
China National Convention Center, Beijing, China
Year and Date
2012-09-17
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[Presentation] Size patterns and CCN activity of less hygroscopic aerosol particles observed in the urban atmosphere during summer2012
Author(s)
Ogawa, S., Setoguchi, Y., Kawana, K., Nakayama, T., Ikeda, Y., Sawada, Y., Matsumi, Y., Mochida, M.
Organizer
The 12th International Global Atmospheric Chemistry (IGAC) Open Science Conference
Place of Presentation
China National Convention Center, Beijing, China
Year and Date
2012-09-17
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[Presentation] 長崎県福江島における有機エアロゾル・エアロゾル金属成分の季節変化2012
Author(s)
吉野彩子, 畠山史郎, 鈴木亮太, 高見昭憲, 佐藤圭, 兼保直樹, 村野健太郎, 坂東博, 定永靖宗, 坂本哲夫, 間山憲仁, 三澤健太郎, 藤井正明
Organizer
第53回大気環境学会年会
Place of Presentation
神奈川大学(神奈川県)
Year and Date
2012-09-12
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[Presentation] Characteristics of heavy metals in PM2.5 at Fukuoka, Japan, based on daily analysis of year-round samples2012
Author(s)
Kaneyasu, N., Takami, A., Sato, K., Yamamoto, S., Kim, Y.-P., Kim, I.-S.
Organizer
The 2012 European Aerosol Conference
Place of Presentation
Parque de las Ciencias, Granada, Spain
Year and Date
2012-09-03
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[Presentation] Formation mechanism of nitrophenols present in secondary organic aerosol from the photooxidation of aromatic hydrocarbons2012
Author(s)
Sato, K., Imamura, T., Takami, A., Seta, T., Hikida, T., Shimono, A.
Organizer
28th Symposium on Chemical Kinetics and Dynamics,
Place of Presentation
Kyushu University, Fukuoka
Year and Date
2012-06-06
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