Updated on 2024/03/29

写真a

 
MOCHIDA, Michihiro
 
Organization
Institute for Space-Earth Environmental Research Center for International Collaborative Research Professor
Graduate School
Graduate School of Environmental Studies
Title
Professor
Contact information
メールアドレス
Homepage
http://acg.isee.nagoya-u.ac.jp/index_e.html

Degree 1

  1. 博士（理学） （ 1999.3   東京大学 ） 

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Research Interests 2

  1. Atmospheric Chemistry

  2. Atmospheric Aerosol

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Research Areas 2

  1. Others / Others  / Environmental Dynamic Analysis

  2. Others / Others  / Earth Astrohemistry

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Current Research Project and SDGs 5

  1. 大気エアロゾル粒子の吸湿特性と雲凝結核活性の解明

  2. 大気有機エアロゾルの光吸収特性の解明

  3. 有機エアロゾルの多相酸化反応に関する室内実験研究

  4. 大気有機エアロゾルの化学構造と起源の関係の理解

  5. 大気エアロゾルの健康影響に関わる性状の研究

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Research History 1

  1. Nagoya University   Professor

    2018.4

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Education 2

  1. The University of Tokyo   Graduate School, Division of Science

    1996.4 - 1999.3

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    Country： Japan

  2. The University of Tokyo   Graduate School, Division of Science

    1994.4 - 1996.3

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    Country： Japan

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Professional Memberships 2

  1. 日本地球惑星科学連合

  2. 日本大気化学会

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Committee Memberships 9

  1. international Commission on Atmospheric Chemistry and Global Pollution (iCACGP)   Member  

    2019   

  2. Atmoshperic Environment (Elsevier)   Editorial Advisery Board Member  

    2015.11   

  3. 日本学術会議   小委員会委員  

    2024.1 - 2026.9   

  4. 日本学術会議・環境学委員会・地球惑星科学合同FE・WCRP合同分科会IGAC小委員会   委員  

    2021.9 - 2023.9   

  5. 日本学術会議・環境学委員会・地球惑星科学合同FE・WCRP合同分科会IGAC小委員会   委員  

    2021.4 - 2023.9   

  6. 日本学術会議・環境学委員会・地球惑星科学合同IGBP・WCRP・DIVERSITAS合同分科会IGAC小委員会   委員  

    2015.2 - 2017.9   

  7. 日本大気化学会運営委員会   運営委員  

    2015 - 2019   

  8. Atmospheric Research (Elsevier)   Associate Editor  

    2014.10 - 2019   

  9. 北海道大学低温科学研究所共同利用・共同研究拠点課題等審査委員会   委員  

    2014.10 - 2016   

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Awards 1

  1. 2008年度奨励賞

    2008.10   大気化学研究会  

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    Country：Japan

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Papers 58

  1. In Situ Surface Tension Measurement of Deliquesced Aerosol Particles Reviewed

    Masao Gen, Akihide Hibara, Phuong Nguyet Phung, Yuzo Miyazaki, Michihiro Mochida

    The Journal of Physical Chemistry A   Vol. 127 ( 29 ) page： 6100 - 6108   2023.7

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acs.jpca.3c02681

  2. Evaluation of a method to quantify the number concentrations of submicron water-insoluble aerosol particles based on filter sampling and complex forward-scattering amplitude measurements Reviewed

    Sho Ohata, Nobuhiro Moteki, Hikaru Kawanago, Yutaka Tobo, Kouji Adachi, Michihiro Mochida

    Aerosol Science and Technology   Vol. 57 ( 10 ) page： 1013 - 1030   2023.6

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1080/02786826.2023.2223387

  3. Fluorescence of solvent-extractable organics in sub-micrometer forest aerosols in Hokkaido, Japan Reviewed

    Sonia Afsana, Ruichen Zhou, Yuzo Miyazaki, Eri Tachibana, Dhananjay Kumar Deshmukh, Kimitaka Kawamura, Michihiro Mochida

    Atmospheric Environment   Vol. 303   page： 119710   2023.6

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    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.atmosenv.2023.119710

  4. Relationships of the Hygroscopicity of HULIS With Their Degrees of Oxygenation and Sources in the Urban Atmosphere Reviewed International coauthorship

    Ruichen Zhou, Yange Deng, Bhagawati Kunwar, Qingcai Chen, Jing Chen, Lujie Ren, Kimitaka Kawamura, Pingqing Fu, Michihiro Mochida

    Journal of Geophysical Research: Atmospheres   Vol. 127 ( 24 )   2022.12

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    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：American Geophysical Union (AGU)  

    DOI： 10.1029/2022jd037163

    Other Link： https://onlinelibrary.wiley.com/doi/full-xml/10.1029/2022JD037163

  5. Water Solubility Distribution of Organic Matter Accounts for the Discrepancy in Hygroscopicity among Sub- and Supersaturated Humidity Regimes Reviewed International coauthorship

    Wen-Chien Lee, Yange Deng, Ruichen Zhou, Masayuki Itoh, Michihiro Mochida, Mikinori Kuwata

    Environmental Science & Technology   Vol. 56 ( 24 ) page： 17924 - 17935   2022.12

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：American Chemical Society (ACS)  

    DOI： 10.1021/acs.est.2c04647

  6. Number‐Size Distribution and CCN Activity of Atmospheric Aerosols in the Western North Pacific During Spring Pre‐Bloom Period: Influences of Terrestrial and Marine Sources Reviewed

    Kaori Kawana, Yuzo Miyazaki, Yuko Omori, Hiroshi Tanimoto, Sara Kagami, Koji Suzuki, Youhei Yamashita, Jun Nishioka, Yange Deng, Hikari Yai, Michihiro Mochida

    Journal of Geophysical Research: Atmospheres   Vol. 127 ( 19 )   2022.10

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    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：American Geophysical Union (AGU)  

    DOI： 10.1029/2022jd036690

    Other Link： https://onlinelibrary.wiley.com/doi/full-xml/10.1029/2022JD036690

  7. Abundance, chemical structure, and light absorption properties of humic-like substances (HULIS) and other organic fractions of forest aerosols in Hokkaido Reviewed

    Sonia Afsana, Ruichen Zhou, Yuzo Miyazaki, Eri Tachibana, Dhananjay Kumar Deshmukh, Kimitaka Kawamura, Michihiro Mochida

    Scientific Reports   Vol. 12 ( 1 )   2022.8

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    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    Abstract

    Atmospheric organic aerosol (OA) are considered as a significant contributor to the light absorption of OA, but its relationship with abundance, composition and sources are not understood well. In this study, the abundance, chemical structural characteristics, and light absorption property of HULIS and other low-to-high polar organics in PM<sub>0.95</sub> collected in Tomakomai Experimental Forest (TOEF) were investigated with consideration of their possible sources. HULIS were the most abundant (51%), and correlation analysis revealed that biogenic secondary organic aerosols significantly contribute to HULIS. The mass spectra obtained using a high-resolution aerosol mass spectrometer (HR-AMS) showed that HULIS and highly polar water-soluble organic matter (HP-WSOM) were substantially oxygenated organic aerosol fractions, whereas water-insoluble organic matter (WISOM) had a low O/C ratio and more hydrocarbon-like structures. The WISOM fraction was the predominant light-absorbing organics. HULIS and WISOM showed a noticeable seasonal change in mass absorption efficiency (MAE<sub>365</sub>), which was highest in winter. Further, HULIS were shown to be less absorbing than those reported for urban sites. The findings in this study provide insights into the contribution of biogenic secondary OA on aerosol property and radiative forcing under varying contributions from other types of OA.

    DOI： 10.1038/s41598-022-18201-z

    Web of Science

    Other Link： https://www.nature.com/articles/s41598-022-18201-z

  8. 陸域生態系と大気化学

    持田 陸宏, 伊藤 昭彦, 松田 和秀, 谷 晃

    大気化学研究   ( 47 ) page： 047A05   2022.7

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    Authorship：Lead author,　Corresponding author   Language：Japanese  

  9. Offline analysis of the chemical composition and hygroscopicity of submicrometer aerosol at an Asian outflow receptor site and comparison with online measurements Reviewed

    Yange Deng, Hiroaki Fujinari, Hikari Yai, Kojiro Shimada, Yuzo Miyazaki, Eri Tachibana, Dhananjay Deshmukh, Kimitaka Kawamura, Tomoki Nakayama, Shiori Tatsuta, Mingfu Cai, Hanbing Xu, Fei Li, Haobo Tan, Sho Ohata, Yutaka Kondo, Akinori Takami, Shiro Hatakeyama, Michihiro Mochida

    Atmospheric Chemistry and Physics   Vol. 22   page： 5515 - 5533   2022.5

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    Authorship：Last author,　Corresponding author   Publisher：Copernicus GmbH  

    Abstract. Filter-based offline analysis of atmospheric aerosol hygroscopicity coupled to composition analysis provides information complementary to that obtained from online analysis. However, its application itself and comparison to online analysis have remained limited to date. In this study, daily submicrometer aerosol particles (PM0.95, 50 % cutoff diameter: 0.95 μm) were collected onto quartz fiber filters in Okinawa Island, a receptor of East Asian outflow, in the autumn of 2015. The chemical composition of water-soluble matter (WSM) in PM0.95 and PM0.95 itself, and their respective hygroscopicities were characterized through the offline use of an aerosol mass spectrometer and a hygroscopicity tandem differential mobility analyzer. Thereafter, results were compared with those obtained from online analyses. Sulfate dominated the WSM mass (60 %), followed by water-soluble organic matter (WSOM, 20 %) and ammonium (13 %). WSOM accounted for most (93 %) of the mass of extracted organic matter (EOM) and the atomic O to C ratios (O : C) of WSOM and EOM were high (mean ± standard deviation were, respectively, 0.84 ± 0.08 and 0.79 ± 0.08), both of which indicate highly aged characteristics of the observed aerosol. The hygroscopic growth curves showed clear hysteresis for most samples. At 85 % RH, the calculated hygroscopicity parameter κ of the WSM (κWSM), WSOM, EOM, and PM0.95 (κPM0.95) were, respectively, 0.50 ± 0.03, 0.22 ± 0.12, 0.20 ± 0.11, and 0.47 ± 0.03. An analysis using the thermodynamic E-AIM model shows, on average, that inorganic salts and WSOM respectively contributed 88 % and 12 % of the κWSM (or κPM0.95). High similarities were found between offline and online analysis for chemical compositions that are related to particle hygroscopicity (the mass fractions and O : C of organics, and the degree of neutralization), and also for aerosol hygroscopicity. As possible factors governing the variation of κWSM, the influences of WSOM abundance and the neutralization of inorganic salts were assessed. At high RH (70–90 %), the hygroscopicity of WSM and PM0.95 was affected considerably by the presence of organic components; at low RH (20–50 %), the degree of neutralization could be important. This study not only characterized aerosol hygroscopicity at the receptor site of East Asian outflow, but also shows that the offline hygroscopicity analysis is an appropriate method, at least for aerosols of the studied type. The results encourage further applications to other environments and to more in-depth hygroscopicity analysis, in particular for organic fractions.

    DOI： 10.5194/acp-2021-704

  10. Distinctive Sources Govern Organic Aerosol Fractions with Different Degrees of Oxygenation in the Urban Atmosphere Reviewed International coauthorship

    Zhou Ruichen, Chen Qingcai, Chen Jing, Ren Lujie, Deng Yange, Vodicka Petr, Deshmukh Dhananjay K., Kawamura Kimitaka, Fu Pingqing, Mochida Michihiro

    ENVIRONMENTAL SCIENCE & TECHNOLOGY   Vol. 55 ( 8 ) page： 4494 - 4503   2021.4

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    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acs.est.0c08604

    Web of Science

  11. 紀伊半島の森林における大気エアロゾル粒子の生成・成長とその雲凝結核としての寄与 Invited Reviewed

    持田 陸宏

    エアロゾル研究   Vol. 36 ( 1 ) page： 25 - 31   2021.3

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    Authorship：Lead author,　Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)  

    特集「森林ー大気系におけるエアロゾルの挙動」における解説

  12. Assessment of the Sphericity of Submicrometer Particles Using a Single-particle Polar Nephelometer at an Urban Site in Japan Reviewed

    Nakagawa Maho, Nakayama Tomoki, Sasago Hiroshi, Kuruma Yuki, Yai Hikari, Ogawa Shuhei, Deng Yange, Mochida Michihiro, Matsumi Yutaka

    AEROSOL AND AIR QUALITY RESEARCH   Vol. 20 ( 11 ) page： 2474 - 2484   2020.11

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.4209/aaqr.2020.01.0023

    Web of Science

  13. Diurnal variation and size dependence of the hygroscopicity of organic aerosol at a forest site in Wakayama, Japan: their relationship to CCN concentrations

    Deng Yange, Yai Hikari, Fujinari Hiroaki, Kawana Kaori, Nakayama Tomoki, Mochida Michihiro

    ATMOSPHERIC CHEMISTRY AND PHYSICS   Vol. 19 ( 9 ) page： 5889 - 5903   2019.5

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    Language：Japanese   Publishing type：Research paper (scientific journal)  

    DOI： 10.5194/acp-19-5889-2019

    Web of Science

  14. Chemical transfer of dissolved organic matter from surface seawater to sea spray water-soluble organic aerosol in the marine atmosphere

    Miyazaki Yuzo, Yamashita Youhei, Kawana Kaori, Tachibana Eri, Kagami Sara, Mochida Michihiro, Suzuki Koji, Nishioka Jun

    SCIENTIFIC REPORTS   Vol. 8   2018.10

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1038/s41598-018-32864-7

    Web of Science

  15. Hygroscopicity of Organic Aerosols and Their Contributions to CCN Concentrations Over a Midlatitude Forest in Japan

    Deng Yange, Kagami Sara, Ogawa Shuhei, Kawana Kaori, Nakayama Tomoki, Kubodera Ryo, Adachi Kouji, Hussein Tareq, Miyazaki Yuzo, Mochida Michihiro

    JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES   Vol. 123 ( 17 ) page： 9703-9723   2018.9

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1029/2017JD027292

    Web of Science

  16. Comparison of Aerosol Hygroscopcity, Volatility, and Chemical Composition between a Suburban Site in the Pearl River Delta Region and a Marine Site in Okinawa

    Cai Mingfu, Tan Haobo, Chan Chak K., Mochida Michihiro, Hatakeyama Shiro, Kondo Yutaka, Schurman Misha I., Xu Hanbing, Li Fei, Shimada Kojiro, Li Liu, Deng Yange, Yai Hikari, Matsuki Atsushi, Qin Yiming, Zhao Jun

    AEROSOL AND AIR QUALITY RESEARCH   Vol. 17 ( 12 ) page： 3194-3208   2017.12

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.4209/aaqr.2017.01.0020

    Web of Science

  17. Structural and Light-Absorption Characteristics of Complex Water-Insoluble Organic Mixtures in Urban Submicrometer Aerosols

    Chen Qingcai, Ikemori Fumikazu, Nakamura Yuua, Vodicka Petr, Kawamura Kimitaka, Mochida Michihiro

    ENVIRONMENTAL SCIENCE & TECHNOLOGY   Vol. 51 ( 15 ) page： 8293-8303   2017.8

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acs.est.7b01630

    Web of Science

  18. Hygroscopicity and cloud condensation nucleus activity of forest aerosol particles during summer in Wakayama, Japan

    Kawana Kaori, Nakayama Tomoki, Kuba Naomi, Mochida Michihiro

    JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES   Vol. 122 ( 5 ) page： 3042-3064   2017.3

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1002/2016JD025660

    Web of Science

  19. Fungal spores overwhelm biogenic organic aerosols in a midlatitudinal forest Reviewed

    Chunmao Zhu, Kimitaka Kawamura, Yasuro Fukuda, Michihiro Mochida, and Yoko Iwamoto

    Atmospheric Chemistry and Physics   Vol. 16   page： 7497-7506   2016.6

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： doi:10.5194/acp-16-7497-2016

  20. Hygroscopicity of aerosol particles and CCN activity of nearly-hydrophobic particles in the urban atmosphere over Japan during summer Reviewed

    Shuhei Ogawa, Yoshitaka Setoguchi, Kaori Kawana, Tomoki Nakayama, Yuka Ikeda, Yuuki Sawada, Yutaka Matsumi, and Michihiro Mochida

    Journal of Geophysical Research: Atmospheres   Vol. 121   page： 7215-7234   2016.6

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1002/2015JD024636

  21. Hygroscopicity and CCN activity of atmospheric aerosol particles and their relation to organics: Characteristics of urban aerosols in Nagoya, Japan Reviewed

    Kaori Kawana, Tokoki Nakayama, and Michihiro Mochida

    Journal of Geophysical Research: Atmospheres   Vol. 121   page： 4100-4121   2016.4

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    Language：English   Publishing type：Research paper (scientific journal)  

  22. Total OH reactivity measurement in a BVOC dominated temperate forest during a summer campaign, 2014 Reviewed

    Sathiyamurthi Ramasamy, Akira Ida, Charlotte Jones, Shungo Kato, Hiroshi Tsurumaru, Iori Kishimoto, Shio Kawasaki, Yasuhiro Sadanaga, Yoshihiro Nakashima, Tomoki Nakayama, Yutaka Matsumi, Michihiro Mochida, Sara Kagami, Yange Deng, Shuhei Ogawa, Kaori Kawana, and Yoshizumi Kajii

    Atmospheric Environment   Vol. 131   page： 41-54   2016.4

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    Language：English   Publishing type：Research paper (scientific journal)  

  23. Chemical structural characteristics of HULIS and other fractionated organic matter in urban aerosols: Results from mass spectral and FT-IR analysis Reviewed

    Qingcai Chen, Fumikazu Ikemori, Hayato Higo, Daichi Asakawa, and Michihiro Mochida

    Environmental Science & Technology   Vol. 50   page： 1721-1730   2016.2

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    Language：English   Publishing type：Research paper (scientific journal)  

  24. Formation of high-molecular-weight compounds via the heterogeneous reactions of gaseous C8-C10 n-aldehydes in the presence of atmospheric aerosol components Reviewed

    Yuemei Han, Kimitaka Kawamura, Qingcai Chen, and Michihiro Mochida

    Atmospheric Environment   Vol. 126   page： 290-297   2016.2

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  25. Characterization of single particles in urban atmospheric aerosols over Nagoya based on mass spectral analysis Reviewed

    Toshiyuki Mihara and Michihiro Mochida

    Aerosol Science and Technology   Vol. 49   page： 1078-1089   2015

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1080/02786826.2015.1096010

  26. Properties of light-absorbing aerosols in the Nagoya urban area, Japan, in August 2011 and January 2012: Contributions of brown carbon and lensing effect Reviewed

    Tomoki Nakayama, Yuka Ikeda, Yuuki Sawada, Yoshitaka Setoguchi, Shuhei Ogawa, Kaori Kawana, Michihiro Mochida, Fumikazu Ikemori, Kiyoshi Matsumoto, Yutaka Matsumi

    Journal of Geophysical Research   Vol. 119   page： 12,721–12,739   2014.11

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1002/2014JD021744

  27. 大気エアロゾル粒子の吸湿性と雲凝結核活性：理論，測定および展望 Invited Reviewed

    持田陸宏

    低温科学   Vol. 72   page： 41-48   2014.3

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    Authorship：Lead author   Language：Japanese   Publishing type：Research paper (bulletin of university, research institution)  

  28. Assessment of cloud condensation nucleus activation of urban aerosol particles with different hygroscopicity and the application to the cloud parcel model Reviewed

    Kaori Kawana, Naomi Kuba, and Michihiro Mochida

    Journal of Geophysical Research   Vol. 119   page： 3352-3371   2014.3

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1002/2013JD020827

  29. Simultaneous measurements of hygroscopic property and cloud condensation nucleus activity of aerosol particles of marine biogenic origin

    M. Mochida

    Western Pacific Air-Sea Interaction Study     page： 71-81   2014.3

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    Language：English  

    DOI： 10.5047/w-pass.a01.008

  30. 大気中における有機物の関与する不均一／多相反応：オゾン酸化およびアルデヒドの反応 Reviewed

    持田陸宏，韓月梅，村瀬沙織

    エアロゾル研究   Vol. 29 ( S1 ) page： 66-71   2014.2

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    Language：Japanese  

  31. Formation and evolution of biogenic secondary organic aerosol over a forest site in Japan Reviewed

    Journal of Geophysical Research   Vol. 119   page： 259-273   2014.1

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1002/2013JD020390

  32. Particle effective density measurement using a DMA-APMCPC system in Nagoya, Japan: Estimation of mixing state and shape

      Vol. 68   page： 48-49   2013.1

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  33. Measurements of light absorption enhancement of black carbon using a photoacoustic spectrometer in Nagoya, Japan

    Tomoki Nakayama, Yuka Ikeda, Yuuki Sawada, Yutaka Matsumi, Yoshitaka Setoguchi, Kaori Kawana and Michihiro Mochida

      Vol. 68   page： 50-52   2013.1

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  34. Observation of new particle formation over a mid-latitude forest facing the North Reviewed

    Yuemei Han, Yoko Iwamoto, Tomoki Nakayama, Kimitaka Kawamura, Tareq Hussein, Michihiro Mochida

    Atmospheric Environment   Vol. 64   page： 77-84   2013

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.atmosenv.2012.09.036

  35. Ice core records of biomass burning tracers (levoglucosan and dehydroabietic, vanillic and p-hydroxybenzoic acids) and total organic carbon for past 300 years in the Kamchatka Peninsula, Northeast Asia Reviewed

    Kimitaka Kawamura, Yusuke Izawa, Michihiro Mochida, and Takayuki Shiraiwa

    Geochimica et Cosmochimica Acta   Vol. 99   page： 317-329   2012

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.gca.2012.08.006

  36. Hygroscopicity and cloud condensation nucleus activity of marine aerosol particles over the western North Pacific Reviewed

    M. Mochida, C. Nishita-Hara, H. Furutani, Y. Miyazaki, J. Jung, K. Kawamura, M. Uematsu

    Journal of Geophysical Research   Vol. 116 ( D06204 ) page： doi:10.1029/2010JD014759   2011.3

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  37. Characterization of solvent-extractable organics in urban aerosols based on mass spectrum analysis and hygroscopic growth measurement Reviewed

    Toshiyuki Mihara, Michihiro Mochida

    Environemtal Science & Technology   Vol. 45 ( 21 ) page： 9168-9174   2011

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/es201271w

  38. Size-segregated measurements of cloud condensation nucleus activity and hygroscopic growth for aerosols at Cape Hedo, Japan, in spring 2008 Reviewed

    M. Mochida, C. Nishita-Hara, Y. Kitamori, S. G. Aggarwal, K. Kawamura, K. Miura, A. Takami

    Journal of Geophysical Research   Vol. 115 ( D21207 ) page： doi:10.1029/2009JD013216   2010.11

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  39. Seasonal variation of levoglucosan in aerosols over the western North Pacific and its assessment as a biomass-burning tracer Reviewed

    M. Mochida, K. Kawamura, P. Fu, T. Takemura

    Atmospheric Environment   Vol. 44   page： 3511-3518   2010.9

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  40. Formation and Transport of Aerosols in Tokyo in Relation to Their Physical and Chemical Properties: A Review Reviewed

    Yutaka Kondo, Nobuyuki Takegawa, Hitoshi Matsui, Takuma Miyakawa, Makoto Koike, Yuzo Miyazaki, Yugo Kanaya, Michihiro Mochida, Mikinori Kuwata, Yu Morino and Manabu Shiraiwa

    Journal of the Meteorological Society of Japan     2010

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.2151/jmsj.2010-401

  41. Assessment of the aerosol water content in urban atmospheric particles by the hygroscopic growth measurements in Sapporo, Japan Reviewed

    Y. Kitamori, M. Mochida, K. Kawamura

    Atmospheric Environment   Vol. 43   page： 3416-3423   2009.7

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  42. Significant alteration in the hygroscopic properties of urban aerosol particles by the secondary formation of organics Reviewed

    Mochida M., T. Miyakawa, N. Takegawa, Y. Morino, K. Kawamura, Y. Kondo

    Geophysical Research Letters   Vol. 35   page： L02804, doi:10.1029/2007GL031310   2008.1

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)  

  43. 都市大気中の半揮発性ジカルボニルとヒドロキシカルボニル化合物の日変動 Reviewed

    奥沢和浩, 持田陸宏, J. Bendle, H. Wang, 河村公隆

    地球化学   Vol. 41   page： 125-134   2007.12

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    Language：Japanese   Publishing type：Research paper (scientific journal)  

  44. Chemical closure study on hygroscopic properties of urban aerosol particles in Sapporo, Japan Reviewed

    Aggarwal, S. G., M. Mochida, Y. Kitamori, K. Kawamura

    Environmental Science & Technology   Vol. 41   page： 6920-6925   2007.10

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    Language：English   Publishing type：Research paper (scientific journal)  

  45. Bimodal size distributions of various organic acids and fatty acids in the marine atmosphere: Influence of anthropogenic aerosols, Asian dusts and sea spray off the coast of East Asia Reviewed

    Mochida, M., N. Umemoto, K. Kawamura, H.-J. Lim, B. J. Turpin

    Journal of Geophysical Research   Vol. 112   page： D15209, doi:10.1029/2006JD007773   2007.8

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)  

  46. Chemistry of OH and HO2 radicals observed at Rishiri Island, Japan, in September 2003: Missing daytime sink of HO2 and positive nighttime correlations with monoterpenes Reviewed

    Kanaya, Y., R. Cao, S. Kato, Y. Miyakawa, Y. Kajii, H. Tanimoto, Y. Yokouchi, M. Mochida, K. Kawamura, H. Akimoto

    Journal of Geophysical Research   Vol. 112   page： D11308, doi:10.1029/2006JD007987   2007.6

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    Language：English   Publishing type：Research paper (scientific journal)  

  47. Dependence of CCN activity of less-volatile particles on the amount of coating observed in Tokyo Reviewed

    Kuwata, M., Y. Kondo, M. Mochida, N. Takegawa, K. Kawamura

    Journal of Geophysical Research   Vol. 112   page： D11207, doi:10.1029/2006JD007758   2007.6

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    Language：English   Publishing type：Research paper (scientific journal)  

  48. Mass spectral evidence that small changes in composition caused by oxidative aging processes after aerosol CCN properties Reviewed

    Shilling, J. E., S. M. King, M. Mochida, D. R. Worsnop, and S. T. Martin

    The Journal of Physical Chemistry A   Vol. 111   page： 3358-3368   2007.5

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    Language：English   Publishing type：Research paper (scientific journal)  

  49. Time-resolved measurements of water-soluble organic carbon in Tokyo Reviewed

    Miyazaki, Y., Y. Kondo, N. Takegawa, Y. Komazaki, M. Fukuda, K. Kawamura, M. Mochida, K. Okuzawa, and R. J. Weber

    Journal of Geophysical Research   Vol. 111   page： D23206, doi:10.1029/2006JD007125   2006.12

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    Language：English   Publishing type：Research paper (scientific journal)  

  50. Relationship between hygroscopicity and cloud condensation nuclei activity for urban aerosols in Tokyo Reviewed

    Mochida, M., M. Kuwata, T. Miyakawa, N. Takegawa, K. Kawamura, Y. Kondo

    Journal of Geophysical Research   Vol. 111   page： D23204, doi:10.1029/2005JD006980   2006.12

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)  

  51. The relative importance of competing pathways for the formation of high-molecular-weight peroxides in the ozonolysis of organic aerosol particles Reviewed

    Mochida, M., Y. Katrib, J. T. Jayne, D. R. Worsnop, and S. T. Martin

    Atmospheric Chemistry and Physics   Vol. 6   page： 4851-4866   2006.10

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)  

  52. Diurnal variations and vertical gradients of biogenic volatile and semi-volatile organic compounds at the Tomakomai larch forest station in Japan Reviewed

    Ieda, T., Y. Kitamori, M. Mochida, R. Hirata, T. Hirano, K. Inukai, Y. Fujinuma, K. Kawamura

      Vol. 58   page： 177-186   2006.7

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    Language：English   Publishing type：Research paper (scientific journal)  

  53. Ozonolysis of mixed oleic-acid/stearic-acid particles: Reaction kinetics and chemical morphology Reviewed

    Katrib, Y., G. Biskos, P. R. Buseck, P. Davidovits, J. T. Jayne, M. Mochida, M. E. Wise, D. R. Worsnop, and S. T. Martin

    The Journal of Physical Chemistry A   Vol. 109   page： 10,910-10,919   2005.12

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    Language：English   Publishing type：Research paper (scientific journal)  

  54. Hygroscopic properties of levoglucosan and related organic compounds characteristic to biomass burning aerosol particles Reviewed

    Mochida, M., K. Kawamura

    Journal of Geophysical Research   Vol. 109   page： D21202, doi:10.1029/2004JD004962   2004.11

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)  

  55. Composition and major sources of organic compounds of aerosol particulate matter sampled during the ACE-Asia campaign Reviewed

    Simoneit, B. R. T., M. Kobayashi, M. Mochida, K. Kawamura, M. Lee, H.-J. Lim, B. J. Turpin, Y. Komazaki

    Journal of Geophysical Research   Vol. 109   page： D19S10, doi:10.1029/2004JD004598   2004.9

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    Language：English   Publishing type：Research paper (scientific journal)  

  56. Aerosol particles collected on aircraft flights over the northwestern Pacific region during the ACE-Asia campaign: Composition and major sources of the organic compounds Reviewed

    Simoneit, B. R. T., M. Kobayashi, M. Mochida, K. Kawamura, B. J. Huebert

    Journal of Geophysical Research   Vol. 109   page： D19S09, doi:10.1029/2004JD004565   2004.9

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    Language：English   Publishing type：Research paper (scientific journal)  

  57. High abundance of gaseous and particulate 4-oxopentanal in the forestal atmosphere Reviewed

    Matsunaga, S., M. Mochida, K. Kawamura

    Chemosphere   Vol. 55   page： 1143-1147   2004.5

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    Language：English   Publishing type：Research paper (scientific journal)  

  58. Variation on the atmospheric concentrations of biogenic carbonyl compounds and their removal processes in the northern forest at Moshiri, Hokkaido Island in Japan Reviewed

    Matsunaga, S., M. Mochida, K. Kawamura

    Journal of Geophysical Research   Vol. 109   page： D04302, doi:10.1029/2003JD004100   2004.2

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    Language：English   Publishing type：Research paper (scientific journal)  

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Books 1

  1. 大気環境の事典（大気環境学会編）

    持田 陸宏（担当範囲）（ Role： Contributor ,  有機粒子の生成）

    朝倉書店  2019 

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    Responsible for pages：2   Language：Japanese Book type：Dictionary, encyclopedia

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MISC 3

  1. 大気化学の将来構想 2022-32

    日本学術会議環境学委員会・地球惑星科学 委員会合同 FE・WCRP 合同分科会

    日本学術会議「記録」     2023

  2. IGAC2021 Virtual ConferenceにおけるJapan National Committee Session開催の報告

    持田陸宏

    大気化学研究   ( 46 ) page： 046N02   2022.1

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    Authorship：Lead author,　Corresponding author   Language：Japanese   Publishing type：Meeting report  

  3. Formation and Growth of Atmospheric Aerosol Particles and Their Contribution as Cloud Condensation Nuclei over a Forest in the Kii Peninsula

    持田陸宏

    エアロゾル研究   Vol. 36 ( 1 )   2021

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Presentations 10

  1. Light absorption of water-soluble and water-insoluble organic aerosol components: Resutls from COALA-2020 in Australia International coauthorship

    Michihiro Mochida, Sonia Afsana, Zhou Ruichen, Sho Ohata, Yoko Yokoyama, Motomi Igarashi, Dhananjay K. Deshmukh, Bhagawati Kunwar, Kimitaka Kawamura, Quang Dang, Clare Palton-Walsh

    2023.11.20 

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    Event date： 2023.11

    Presentation type：Poster presentation  

  2. COALA-2020観測においてオーストラリアで採取した大気エアロゾル試料の化学構造・光吸収特性の分析 International coauthorship

    持田陸宏, Ruichen Zhou, Sonia Afsana, 大畑祥, 横山容子, 五十嵐元美, Dhananjay K. Deshmukh, Bhagawati Kunwar, 河村公隆, Quang Ding, Clare Palton-Walsh

    第27回大気化学討論会  2022.11.18 

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    Event date： 2022.11

    Presentation type：Oral presentation (general)  

  3. Atmospheric organic aerosol from terrestrial ecosystems: a field study in Australia and a plan to develop a field station in Hokkaido

    Michihiro Mochida, Sho Ohata, Yoko Yokoyama, Motomi Igarashi, Dhananjay K.　Deshkukh, Bhagawati Kunwar, Kimitaka Kawamura, Sonia Afsana, Quang Dang, and　Clare Palton-Walsh

    2021.12.10 

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    Event date： 2021.12

  4. COALA-2020観測においてオーストラリアで採取した大気エアロゾル試料の化学分析

    持田陸宏, 大畑祥, 横山容子, 五十嵐元美, Dhananjay K. Deshmukh, Bhagawati Kunwar, 河村公隆, Sonia Afsana, Quang Dang, Clare Palton-Walsh

    第26回大気化学討論会  2021.11 

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    Event date： 2021.11

    Language：Japanese   Presentation type：Poster presentation  

  5. 大気化学の将来構想：陸域生態系と大気化学

    持田陸宏, 伊藤昭彦 , 松田和秀 , 谷晃

    第26回大気化学討論会  2021.11 

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    Event date： 2021.11

  6. ISEE母子里観測所を利用する大気エアロゾル・ガス観測拠点の整備

    持田陸宏、大畑祥、河村公隆

    R2年度　陸別ユーザーズミーティング  2021.3.25 

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    Event date： 2021.3

    Language：Japanese   Presentation type：Oral presentation (invited, special)  

    Venue：オンライン開催  

  7. 春季プレブルーム期の西部北太平洋亜寒帯域におけるエアロゾル粒径分布およびCCN活性

    川名華織, 宮﨑雄三, 大森裕子, 谷本浩志, 鏡味沙良, 鈴木光次, 山下洋平, 西岡純, Yange Deng, 矢井ひかり, 持田陸宏

    第25回大気化学討論会  2020.11.13 

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    Event date： 2020.11

    Presentation type：Oral presentation (general)  

  8. Sources and characteristics of HULIS and other organic aerosol components in Beijing: Results from offline-AMS and FT-IR analyses International conference

    Zhou, R.C., Chen, Q.C., Chen, J., Fu, P.Q., Deng, Y.G., Vodicka, P., Deshmukh, D.K., Kawamura, K., Mochida, M.

    Goldschmidt Virtual 2020 

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    Event date： 2020.7

    Presentation type：Poster presentation  

  9. Assessment of the role of saltingout effect on the hygroscopicity of urban atmospheric aerosol International conference

    Phuong Nguyet Phung, Michihiro Mochida, Sho Ohata, Yuzo Miyazaki, Eri Tachibana

    JpGU – AGU Joint Meeting 2020:Virtual  

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    Event date： 2020.7

    Presentation type：Poster presentation  

  10. Comparison of compositional characteristics of aerosol and rainwater samples collected in Nagoya International conference

    JpGU – AGU Joint Meeting 2020:Virtual  

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    Event date： 2020.7

    Presentation type：Poster presentation  

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Research Project for Joint Research, Competitive Funding, etc. 1

  1. 固相抽出法に基づく大気有機エアロゾルの組成・吸湿性の解析

    2013.11 - 2014.10

    国内共同研究 

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KAKENHI (Grants-in-Aid for Scientific Research) 16

  1. 大気有機エアロゾルの吸湿性を表現する新指標の探索

    Grant number：23H00515  2023.4 - 2027.3

    科学研究費助成事業   基盤研究(A)

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    Authorship：Principal investigator 

    Grant amount：\47450000 （ Direct Cost: \36500000 、 Indirect Cost：\10950000 ）

  2. 大気Å不均一化学の創成：分子レベルで不均質なエアロゾルのエイジング過程の解明

    2023.4

    科学研究費助成事業 

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    Authorship：Coinvestigator(s) 

  3. Chemical structures of organic aerosol and their links with sources and light-absorbing properties

    Grant number：21F20397  2021.4 - 2023.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for JSPS Fellows

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    Authorship：Other 

    Grant amount：\2300000 （ Direct Cost: \2300000 ）

  4. 植生－エアロゾル－気候間の相互作用解明に向けた欧州北方林エアロゾルの吸湿性解析

    Grant number：19KK0265  2019.10 - 2023.3

    科学研究費助成事業  国際共同研究加速基金(国際共同研究強化(B))

    持田 陸宏, 大畑 祥, 松井 仁志

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    Authorship：Principal investigator 

    Grant amount：\18200000 （ Direct Cost: \14000000 、 Indirect Cost：\4200000 ）

    陸域植生から大気に放出される揮発性有機化合物の一部は、光化学反応により生物起源有機エアロゾル（BSOA）となり、雲凝結核としての働きなどにより放射収支に関与し、気候ひいては陸域植生に影響を及ぼすというフィードバック機構を形作ると指摘されている。しかし、エアロゾルの放射影響に関わる有機エアロゾルの吸湿性の推定値には大きな幅があり、BSOAの吸湿性や、その雲粒生成への寄与には大きな不確かさがある。そこで本研究では、北方森林圏を対象としてBSOAの吸湿性とその全エアロゾルの吸湿性に対する寄与を定量する。そして、北方林におけるBSOAの放射への寄与を評価し、上記のフィードバック機構について考察する。
    当該年度には、日本側の研究者がヒューティアラ森林フィールドステーションを訪問し、有機・無機エアロゾル成分の定量や有機エアロゾルの吸湿性パラーメータの解析を行うための大気エアロゾル試料を採取することを計画していたが、新型コロナウイルスの感染拡大のため、年度内の訪問を見送ることとした。そして、これに代わり、ヒューティアラ森林フィールドステーションにおいて名古屋大学のハイボリュームエアサンプラをヘルシンキ大学の関係者が運用し採取する試料を用いて、本研究のエアロゾル化学組成・吸湿性の解析を行う方針に切り替えることとした。この準備として、ハイボリュームエアサンプラによる大気エアロゾルの採取を実施するための手順書の作成を進めた。また、この大気エアロゾル試料の採取のため、PM0.95（粒径が0.95マイクロメータ以下の粒子）を捕集するためのフィルタと、粒径が0.95マイクロメータよりも大きな粒子を除去するインパクタ用基材の前処理（加熱）を行い、また、それらを輸送・保存用の容器に入れる作業を行った。そのほか、有機エアロゾルの吸湿性パラーメータや他の情報を用いた放射影響の解析のため、全球エアロゾルモデルの改良について検討を進めた。大気エアロゾルの雲凝結核活性を評価する上では、エアロゾルに含まれる界面活性物質による表面張力低下が及ぼす影響が考慮の対象となり、これに関わる検討結果（都市エアロゾル試料を用いた結果）の会議における発表も行った。
    新型コロナウイルスの感染拡大により、大気エアロゾルの採取のためのヒューティアラ森林フィールドステーションの今年度の訪問を見送ることとなった。これに伴い、採取する試料を用いる分析を次年度以降に行う方針に変更した。
    新型コロナウイルスの感染拡大に伴いヒューティアラ森林フィールドステーションにおける大気エアロゾル採取のための訪問が実現しておらず、当面は名古屋大学のハイボリュームエアサンプラをヘルシンキ大学の関係者が運用し採取する試料を用いて、本研究を進める計画に変更した。

  5. Deepening the quantitative understanding of the hygroscopicity of atmospheric organic aerosol: Its relationship to chemical structures and sources

    Grant number：19H04253  2019.4 - 2022.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

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    Authorship：Principal investigator 

    Grant amount：\17290000 （ Direct Cost: \13300000 、 Indirect Cost：\3990000 ）

  6. Relationship between the mixing state of atmospheric aerosol particles and their lung deposition: Analysis toward next-generation assessments of the health effects

    Grant number：18K19852  2018.6 - 2020.3

    Grant-in-Aid for Challenging Research (Exploratory)

    Mochida Michihiro

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    Authorship：Principal investigator 

    Grant amount：\6240000 （ Direct Cost: \4800000 、 Indirect Cost：\1440000 ）

    By utilizing the measurement data of the hygroscopic growth of atmospheric aerosols in Nagoya in September 2009, the respiratory deposition of atmospheric aerosol particles that a person inhaled was analyzed. The characteristics of the deposition of aerosol particles in the respiratory tract during the period was obtained based on the distributions of aerosol particles as a function of the dry diameter and hygroscopicity. Further, the importance of the consideration of the external mixing state of aerosols during the period was assessed. The influence of the consideration of time evolution on the calculation of the deposition, and the representation of the results from the analysis were studied.

  7. Origin and formation mechanisms of organic nitrogen aerosols derived from biogenic terpenes

    Grant number：16H02931  2016.4 - 2019.3

    Miyazaki Yuzo

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    Authorship：Coinvestigator(s) 

    We aimed to elucidate the origin and formation processes of atmospheric water-soluble organic nitrogen (WSON) aerosols in forest environment. We found that aerosol liquid water content, primarily driven by anthropogenic sulfate, promotes aqueous reactions of reactive nitrogen and biogenic organic carbon to be the dominant formation processes of WSON, particularly during nighttime.

  8. Quantification of radicals and reactive oxygen species contained in atmospheric aerosol particles

    Grant number：16K12582  2016.4 - 2019.3

    Shiraiwa Manabu

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    Authorship：Coinvestigator(s) 

    Atmospheric aerosols particles play an important role in adverse health effects. Respiratory deposition of ambient particulate matter and their interactions with lung antioxidants can lead to the formation of reactive oxygen species (ROS) that may contribute to oxidative stress. In this project we measured ROS contained in ambient particles collected in an urban air in Nagoya, Japan, using a cascade impactor. Applying electron paramagnetic resonance spectrometry, we detected substantial amounts of environmentally persistent free radicals in collected particles. For detection of ROS we applied a spin counting method. Other atmospheric pollutants were also measured and we found that stable radicals and ozone anti-correlated. In summer 2017, another particle sampling has been conducted in a forest site in Wakayama. While concentrations of free radicals were under detection limit, we observed that particles generate ROS in water.

  9. 森林域で生成する生物起源二次有機エアロゾルの吸湿性・光学特性の解明

    2014.4 - 2017.3

    科学研究費助成事業・基盤研究(B) 

    持田 陸宏

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    Authorship：Principal investigator  Grant type：Competitive

  10. 水晶振動子マイクロバランス法を用いる大気有機エアロゾル成分の有機ガス吸収の解析

    2014.4 - 2016.3

    科学研究費補助金  挑戦的萌芽研究

  11. 外部混合状態を考慮した大気エアロゾルの特性研究への新展開

    2008.4 - 2013

    科学研究費補助金  若手研究(S)，課題番号：20671001

    持田　陸宏

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    Authorship：Principal investigator 

  12. エアロゾル粒子の変質が内部混合状態に及ぼす影響と氷晶化能力との関係

    2008 - 2011.3

    日本学術振興会   科学研究費助成事業  基盤研究(B)

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    Authorship：Coinvestigator(s) 

  13. 東アジアおよび南アジアにおける有機エアロゾルの化学組成、空間分布および吸湿特性

    2007 - 2011.3

    科学研究費補助金  基盤研究(A)

    河村公隆

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    Authorship：Coinvestigator(s) 

  14. 海洋生物起源エアロゾル粒子の吸湿特性および雲凝結核能力の同時計測

    2007 - 2009.3

    科学研究費補助金  特定領域研究（公募，A01），課題番号：19030008

    持田　陸宏

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    Authorship：Principal investigator 

  15. 大気有機エアロゾル粒子の表面張力測定

    2006 - 2008.3

    科学研究費補助金  萌芽研究，課題番号：18651001

    持田　陸宏

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    Authorship：Principal investigator 

  16. 熱拡散チェンバ氷晶計を用いた有機物粒子の雲過程における氷晶形成能の評価

    2006 - 2008

    科学研究費補助金  若手研究（A），課題番号：18684031

    持田　陸宏

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    Authorship：Principal investigator 

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To the head of KAKENHI (Grants-in-Aid for Scientific Research).▲
 

Teaching Experience (On-campus) 47

  1. Seminar on Hydrospheric and Atmospheric Studies 2E

    2022

  2. Seminar on Hydrospheric and Atmospheric Studies 1E

    2022

  3. Atmospheric Aerosol Sciences

    2022

  4. Dynamics of the Sun-Earth-Life Interactive System 1

    2022

  5. Fundamentals of Earth Science II

    2022

  6. 地球科学基礎Ⅱ

    2022

    　詳細を見る

    講義コード：0024348

  7. 地球科学基礎Ⅱ

    2022

    　詳細を見る

    講義コード：0024347

  8. 太陽地球系科学

    2022

  9. Atmospheric Chemistry

    2021

  10. Seminar on Hydrospheric and Atmospheric Studies 2C

    2021

  11. Seminar on Hydrospheric and Atmospheric Studies 1C

    2021

  12. Atmospheric Aerosol Sciences

    2021

  13. Dynamics of the Sun-Earth-Life Interactive System 1

    2021

  14. Seminar on Hydrospheric and Atmospheric Studies 2D

    2021

  15. Seminar on Hydrospheric and Atmospheric Studies 1D

    2021

  16. 太陽地球系科学

    2021

  17. Seminar on Hydrospheric and Atmospheric Studies 2F

    2021

  18. Seminar on Hydrospheric and Atmospheric Studies 1F

    2021

  19. 地球水循環科学セミナー

    2020

  20. 大気エアロゾル科学

    2020

  21. 太陽地球系科学

    2020

  22. 地球学I

    2020

  23. 地球水循環科学セミナー

    2019

  24. 大気エアロゾル科学

    2019

  25. 地球水循環科学セミナー

    2018

  26. 大気エアロゾル科学

    2018

  27. 気候科学セミナー

    2017

  28. 基礎セミナーB

    2017

  29. 大気エアロゾル科学

    2017

  30. 気候科学セミナー

    2016

  31. 大気エアロゾル科学

    2016

  32. 基礎セミナーB

    2016

  33. 基礎セミナーB

    2015

  34. 大気エアロゾル科学

    2015

  35. 気候科学セミナー

    2015

  36. 大気エアロゾル科学

    2014

  37. 気候科学セミナー

    2014

  38. 基礎セミナーB

    2014

  39. 気候科学セミナー

    2013

  40. 大気エアロゾル科学

    2013

  41. 基礎セミナーB

    2013

  42. 気候科学セミナー

    2012

  43. 大気エアロゾル科学

    2012

  44. 基礎セミナーB

    2012

  45. 地球惑星科学セミナーI

    2011

  46. 大気エアロゾル科学

    2011

  47. 気候科学セミナー

    2011

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To the head of Teaching Experience (On-campus).▲