研究者詳細 - 持田　陸宏

論文 - 持田　陸宏

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Interference of sea salt in capture vaporizer-ToF-ACSM measurements of biomass burning organic aerosols in coastal locations 査読有り国際共著

Sutresna, A., Keywood, M., Paton-Walsh, C., Simmons, J., Mynard, C., Dang, Q., Mochida, M., Ohata, S., Afsana, S., Kunwar, B., Kawamura, K., Humphries, R., Dunne, E., Ward, J., Harnwell, J., Reisen, F., Emmerson, K., Griffiths, A., Williams, A., Schofield, R., and Rayner, P.

Environmental Science: Atmospheres 4 巻頁： 634 2024年6月

Additive Water Uptake of the Mixtures of Urban Atmospheric HULIS and Ammonium Sulfate 査読有り国際誌

Zhou, RC; Afsana, S; Wei, CR; Mochida, M

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 129 巻 ( 10 ) 2024年5月

In Situ Surface Tension Measurement of Deliquesced Aerosol Particles 査読有り

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

The Journal of Physical Chemistry A 127 巻 ( 29 ) 頁： 6100 - 6108 2023年7月

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 査読有り

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

Aerosol Science and Technology 57 巻 ( 10 ) 頁： 1013 - 1030 2023年6月

Fluorescence of solvent-extractable organics in sub-micrometer forest aerosols in Hokkaido, Japan 査読有り

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

Atmospheric Environment 303 巻頁： 119710 2023年6月

Relationships of the Hygroscopicity of HULIS With Their Degrees of Oxygenation and Sources in the Urban Atmosphere 査読有り国際共著

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

Journal of Geophysical Research: Atmospheres 127 巻 ( 24 ) 2022年12月

Water Solubility Distribution of Organic Matter Accounts for the Discrepancy in Hygroscopicity among Sub- and Supersaturated Humidity Regimes 査読有り国際共著

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

Environmental Science & Technology 56 巻 ( 24 ) 頁： 17924 - 17935 2022年12月

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 査読有り

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 127 巻 ( 19 ) 2022年10月

Abundance, chemical structure, and light absorption properties of humic-like substances (HULIS) and other organic fractions of forest aerosols in Hokkaido 査読有り

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

SCIENTIFIC REPORTS 12 巻 ( 1 ) 2022年8月

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 ) 頁： 047A05 2022年7月

Offline analysis of the chemical composition and hygroscopicity of submicrometer aerosol at an Asian outflow receptor site and comparison with online measurements 査読有り

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 22 巻頁： 5515 - 5533 2022年5月

担当区分：最終著者,　責任著者出版者・発行元：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

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Distinctive Sources Govern Organic Aerosol Fractions with Different Degrees of Oxygenation in the Urban Atmosphere 査読有り国際共著

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

ENVIRONMENTAL SCIENCE & TECHNOLOGY 55 巻 ( 8 ) 頁： 4494 - 4503 2021年4月

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招待有り査読有り

持田陸宏

エアロゾル研究 36 巻 ( 1 ) 頁： 25 - 31 2021年3月

Assessment of the Sphericity of Submicrometer Particles Using a Single-particle Polar Nephelometer at an Urban Site in Japan 査読有り

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

AEROSOL AND AIR QUALITY RESEARCH 20 巻 ( 11 ) 頁： 2474 - 2484 2020年11月

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 19 巻 ( 9 ) 頁： 5889 - 5903 2019年5月

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 8 巻 2018年10月

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 123 巻 ( 17 ) 頁： 9703-9723 2018年9月

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 17 巻 ( 12 ) 頁： 3194-3208 2017年12月

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 51 巻 ( 15 ) 頁： 8293-8303 2017年8月

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 122 巻 ( 5 ) 頁： 3042-3064 2017年3月

Fungal spores overwhelm biogenic organic aerosols in a midlatitudinal forest 査読有り

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

Atmospheric Chemistry and Physics 16 巻頁： 7497-7506 2016年6月

Hygroscopicity of aerosol particles and CCN activity of nearly-hydrophobic particles in the urban atmosphere over Japan during summer 査読有り

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

Journal of Geophysical Research: Atmospheres 121 巻頁： 7215-7234 2016年6月

Hygroscopicity and CCN activity of atmospheric aerosol particles and their relation to organics: Characteristics of urban aerosols in Nagoya, Japan 査読有り

Kaori Kawana, Tokoki Nakayama, and Michihiro Mochida

Journal of Geophysical Research: Atmospheres 121 巻頁： 4100-4121 2016年4月

Total OH reactivity measurement in a BVOC dominated temperate forest during a summer campaign, 2014 査読有り

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 131 巻頁： 41-54 2016年4月

Chemical structural characteristics of HULIS and other fractionated organic matter in urban aerosols: Results from mass spectral and FT-IR analysis 査読有り

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

Environmental Science & Technology 50 巻頁： 1721-1730 2016年2月

Formation of high-molecular-weight compounds via the heterogeneous reactions of gaseous C₈-C₁₀ n-aldehydes in the presence of atmospheric aerosol components 査読有り

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

Atmospheric Environment 126 巻頁： 290-297 2016年2月

Characterization of single particles in urban atmospheric aerosols over Nagoya based on mass spectral analysis 査読有り

Toshiyuki Mihara and Michihiro Mochida

Aerosol Science and Technology 49 巻頁： 1078-1089 2015年

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

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

Journal of Geophysical Research 119 巻頁： 12,721–12,739 2014年11月

大気エアロゾル粒子の吸湿性と雲凝結核活性：理論，測定および展望招待有り査読有り

持田陸宏

低温科学 72 巻頁： 41-48 2014年3月

Assessment of cloud condensation nucleus activation of urban aerosol particles with different hygroscopicity and the application to the cloud parcel model 査読有り

Kaori Kawana, Naomi Kuba, and Michihiro Mochida

Journal of Geophysical Research 119 巻頁： 3352-3371 2014年3月

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 頁： 71-81 2014年3月

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査読有り

持田陸宏，韓月梅，村瀬沙織

エアロゾル研究 29 巻 ( S1 ) 頁： 66-71 2014年2月

Formation and evolution of biogenic secondary organic aerosol over a forest site in Japan 査読有り

Journal of Geophysical Research 119 巻頁： 259-273 2014年1月

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

68 巻頁： 48-49 2013年1月

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

68 巻頁： 50-52 2013年1月

Observation of new particle formation over a mid-latitude forest facing the North 査読有り

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

Atmospheric Environment 64 巻頁： 77-84 2013年

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 査読有り

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

Geochimica et Cosmochimica Acta 99 巻頁： 317-329 2012年

Hygroscopicity and cloud condensation nucleus activity of marine aerosol particles over the western North Pacific 査読有り

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

Journal of Geophysical Research 116 巻 ( D06204 ) 頁： doi:10.1029/2010JD014759 2011年3月

Characterization of solvent-extractable organics in urban aerosols based on mass spectrum analysis and hygroscopic growth measurement 査読有り

Toshiyuki Mihara, Michihiro Mochida

Environemtal Science & Technology 45 巻 ( 21 ) 頁： 9168-9174 2011年

Size-segregated measurements of cloud condensation nucleus activity and hygroscopic growth for aerosols at Cape Hedo, Japan, in spring 2008 査読有り

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

Journal of Geophysical Research 115 巻 ( D21207 ) 頁： doi:10.1029/2009JD013216 2010年11月

Seasonal variation of levoglucosan in aerosols over the western North Pacific and its assessment as a biomass-burning tracer 査読有り

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

Atmospheric Environment 44 巻頁： 3511-3518 2010年9月

Formation and Transport of Aerosols in Tokyo in Relation to Their Physical and Chemical Properties: A Review 査読有り

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年

Assessment of the aerosol water content in urban atmospheric particles by the hygroscopic growth measurements in Sapporo, Japan 査読有り

Y. Kitamori, M. Mochida, K. Kawamura

Atmospheric Environment 43 巻頁： 3416-3423 2009年7月

Significant alteration in the hygroscopic properties of urban aerosol particles by the secondary formation of organics 査読有り

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

Geophysical Research Letters 35 巻頁： L02804, doi:10.1029/2007GL031310 2008年1月

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査読有り

奥沢和浩, 持田陸宏, J. Bendle, H. Wang, 河村公隆

地球化学 41 巻頁： 125-134 2007年12月

Chemical closure study on hygroscopic properties of urban aerosol particles in Sapporo, Japan 査読有り

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

Environmental Science & Technology 41 巻頁： 6920-6925 2007年10月

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 査読有り

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

Journal of Geophysical Research 112 巻頁： D15209, doi:10.1029/2006JD007773 2007年8月

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 査読有り

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

Journal of Geophysical Research 112 巻頁： D11308, doi:10.1029/2006JD007987 2007年6月

Dependence of CCN activity of less-volatile particles on the amount of coating observed in Tokyo 査読有り

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

Journal of Geophysical Research 112 巻頁： D11207, doi:10.1029/2006JD007758 2007年6月

Mass spectral evidence that small changes in composition caused by oxidative aging processes after aerosol CCN properties 査読有り

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

The Journal of Physical Chemistry A 111 巻頁： 3358-3368 2007年5月

Time-resolved measurements of water-soluble organic carbon in Tokyo 査読有り

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

Journal of Geophysical Research 111 巻頁： D23206, doi:10.1029/2006JD007125 2006年12月

Relationship between hygroscopicity and cloud condensation nuclei activity for urban aerosols in Tokyo 査読有り

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

Journal of Geophysical Research 111 巻頁： D23204, doi:10.1029/2005JD006980 2006年12月

The relative importance of competing pathways for the formation of high-molecular-weight peroxides in the ozonolysis of organic aerosol particles 査読有り

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

Atmospheric Chemistry and Physics 6 巻頁： 4851-4866 2006年10月

Diurnal variations and vertical gradients of biogenic volatile and semi-volatile organic compounds at the Tomakomai larch forest station in Japan 査読有り

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

58 巻頁： 177-186 2006年7月

Ozonolysis of mixed oleic-acid/stearic-acid particles: Reaction kinetics and chemical morphology 査読有り

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 109 巻頁： 10,910-10,919 2005年12月

Hygroscopic properties of levoglucosan and related organic compounds characteristic to biomass burning aerosol particles 査読有り

Mochida, M., K. Kawamura

Journal of Geophysical Research 109 巻頁： D21202, doi:10.1029/2004JD004962 2004年11月

Composition and major sources of organic compounds of aerosol particulate matter sampled during the ACE-Asia campaign 査読有り

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

Journal of Geophysical Research 109 巻頁： D19S10, doi:10.1029/2004JD004598 2004年9月

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

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

Journal of Geophysical Research 109 巻頁： D19S09, doi:10.1029/2004JD004565 2004年9月

High abundance of gaseous and particulate 4-oxopentanal in the forestal atmosphere 査読有り

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

Chemosphere 55 巻頁： 1143-1147 2004年5月

Variation on the atmospheric concentrations of biogenic carbonyl compounds and their removal processes in the northern forest at Moshiri, Hokkaido Island in Japan 査読有り

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

Journal of Geophysical Research 109 巻頁： D04302, doi:10.1029/2003JD004100 2004年2月

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