Composition, origin, transformation and hygroscopic properties of organic aerosols in East Asia and the North Pacific

2016 Fiscal Year Annual Research Report

• Project/Area Number: 24221001
• Research Institution: Chubu University
• Principal Investigator: 河村 公隆 中部大学, 中部高等学術研究所, 教授 (70201449)
• Co-Investigator(Kenkyū-buntansha): 関 宰 北海道大学, 低温科学研究所, 准教授 (30374648) ; 内田 昌男 国立研究開発法人国立環境研究所, 環境計測研究センター, 主任研究員 (50344289) ; 宮崎 雄三 北海道大学, 低温科学研究所, 助教 (60376655)
• Project Period (FY): 2012-05-31 – 2017-03-31
• Keywords: 微粒子 / 東アジア / 北太平洋 / 有機エアロゾル / 硫酸塩 / 化学組成 / 吸湿特性 / 長期変動

Outline of Annual Research Achievements

本研究では、人間活動の影響を強く受ける東アジアとその風下域である西部北太平洋の大気エアロゾルの焦点を当て、その化学組成と吸湿特性の関係をあきらかにすることを目的とした。小笠原諸島・父島で2001年より2012年まで採取した海洋エアロゾルの吸湿特性をタンデムDMA吸湿特性装置にて測定し、その吸湿成長率(Gf)と化学組成の関係を解析した。エアロゾル試料を水抽出しネブライザーにより生成した粒子のGfをエアロゾルの化学組成比較した結果、Gfは水溶性有機物(WSOC)の割合の増加とともに減少することを発見した。この結果は、有機物が微粒子の吸湿特性を低下させていることを意味している。特に春のカルシウム濃度が高い試料では、Gfは低くなることを見いだした。その理由としてシュウ酸カルシウムの生成により粒子の水溶性が減少することを提案した。また、海洋エアロゾル中に無機イオンの長期変動を解析したところ、硫酸塩の濃度が2006年までは増加傾向を示したが、その後、減少に転じた事を発見した。この減少は中国における火力発電所の脱硫装置が本格的に稼働した時期と一致しており、発生源における硫黄排出削減が西部北太平洋の大気質に記録されていることが明らかとなった。一方、シュウ酸など低分子ジカルボン酸等には減少傾向は認められず、むしろ増加傾向を示した。バイオマス燃焼のトレーサーであるレボグルコサンの増加傾向から、(1)森林火災・バイオマス燃焼の増加、(2)植物起源のイソプレンなどVOC放出量の増加が示唆された。更に、シュウ酸の安定炭素同位体比(δ13C)は夏に増加する季節変動を示すことを発見した。シュウ酸の光分解による同位体分別が起こっていることが強く示唆された。一方、シュウ酸のδ13Cは12年間で3‰減少したことから、陸起源有機物の輸送が強化されており、北太平洋の大気質が気候変動の中で変化している事が解った。

Research Progress Status

28年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

28年度が最終年度であるため、記入しない。

Remarks

研究業績などが見られます。

Research Products

• [Journal Article] Dicarboxylic acids, oxocarboxylic acids and α-dicarbonyls in fine aerosols over central Alaska: Implications for sources and atmospheric processes (2018)
  • Author(s): Dhananjay K. Deshmukh, Kimitaka Kawamura, Md. Mozammel Haque, Yongwon Kim
  • Journal Title: Atmos. Res Volume: 202 Pages: 128-139
  • DOI: doi.org/10.1016/j.atmosres.2017.11.003.
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Thirteen-years of observations on primary sugars and sugar alcohols over remote Chichijima Island in the western North Pacific (2018)
  • Author(s): Santosh Kumar Verma, Kimitaka Kawamura, Jing Chen and Pingqing Fu
  • Journal Title: Atmos. Chem. Physics. Volume: 18 Pages: 81-101
  • DOI: doi.org/10.5194/acp-18-81-2018
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Long-term (2001-2012) trends of carbonaceous aerosols from remote island in the western North Pacific: an outflow region of Asian pollutants and dust (2018)
  • Author(s): Suresh K. R. Boreddy, Mozammel Haque, and Kimitaka Kawamura
  • Journal Title: Atmos. Chem. Phys. Volume: 18 Pages: 1291-1306
  • DOI: doi.org/10.5194/acp-18-1291-2108
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Molecular distribution and compound-specific stable carbon isotopic composition of dicarboxylic acids, oxocarboxylic acids, and α-dicarbonyls in PM2.5 from Beijing, China (2018)
  • Author(s): Wanyu Zhao, Kimitaka Kawamura, Siyao Yue, Lianfang Wei, Hong Ren, Yan Yu, Mingjie Kang, Linjie Li, Lujie Ren, Senchao Lai, Jie Li, Yele Sun, Zifa Wang, and Pingqing Fu
  • Journal Title: Atmos. Chem. Physics Volume: 18 Pages: 2749-2767
  • DOI: doi.org/10.5194/acp-18-2749-2018
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Seasonal variations of low molecular weight hydroxy-dicarboxylic acids and oxaloacetic acid in remote marine aerosols from Chichijima Island in the western North Pacific (December 2010 - November 2011) (2018)
  • Author(s): D. Gowda and K. Kawamura
  • Journal Title: Atmos. Res. Volume: 204 Pages: 128-135
  • DOI: doi.org/10.1016/j.atmosres.2018.01.007
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Organic Aerosols in South and East Asia: Composition and Sources, In: Land Atmospheric Research Applications in South and Southeast Asia, K. P. Vadrevu et al. (eds.) (2018)
  • Author(s): Chandra Mouli Pavuluri and Kimitaka Kawamura
  • Journal Title: Springer International Publisheing AG Volume: - Pages: 379-408
  • DOI: doi.org/10.1007/978-3-319-67474-2_18
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Tracing atmospheric transport of soil microorganisms and higher plant waxes in the East Asian outflow to the North Pacific Rim using hydroxy fatty acids: Year-round observations at Gosan, Jeju Island (2017)
  • Author(s): Poonam Tyagi, Kimitaka Kawamura, Tadashi Kariya, Srinivas Bikkina and Meehye Lee
  • Journal Title: J. Geophys. Res.-Atmospheres Volume: 122 Pages: 4112-4131
  • DOI: 10.1002/2016JD025496
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Seasonal changes in TC and WSOC and their 13C isotope ratios in Northeast Asian aerosols: land surface-biosphere-atmosphere interactions (2017)
  • Author(s): Chandra Mouli Pavuluri and Kimitaka Kawamura
  • Journal Title: Acta Geochim Volume: 36 Pages: 355-358
  • DOI: 10.1007/s11631-017-0157-3
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Ozone alters the feeding behavior of the leaf beetle Agelastica coerulea (Coleoptera: Chrysomelidae) into leaves of Japanese white birch (Betula platyphylla var. japonica) (2017)
  • Author(s): Eugenios Agathokleous, Tetsuichi Sakikawa, Shahenda A. Abu ElEla, Tomoki Mochizuki, Masahiro Nakamura, Makoto Watanabe, Kimitaka Kawamura, Takayoshi Koike
  • Journal Title: Environmental Science and Pollution Research Volume: 24(21) Pages: 17577-17583
  • DOI: 10.1007/s11356-017-9369-7
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Organic molecular tracers in the atmospheric aerosols from Lumbini (Nepal) in Indo-Gangetic Plains: the influence of biomass burning (2017)
  • Author(s): Xin Wan, Shichang Kang, Quanlian Li, Dipesh Rupakheti, Qianggong Zhang, Junming Guo, Pengfei Chen, Lekhendra Tripathee, Maheswar Rupakheti, Arnico Panday, Wu Wang, Kimitaka Kawamura, Shaopeng Gao, Guangming Wu, and Zhiyuan Cong
  • Journal Title: Atmos. Chem. Phys. Volume: 17 Pages: 8867-8885
  • DOI: doi.org/10.5194/acp-17-8867-2017
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Structural and light-absorption characteristics of complex water-insoluble organic mixtures in urban submicron aerosols (2017)
  • Author(s): Chen, Qingcai; Ikemori, Fumikazu; Nakamura, Yuua; Vodicka, Petr; Kawamura, Kimitaka; Mochida, Michihiro
  • Journal Title: Environ. Sci. Technol. Volume: 51(15) Pages: 8293-8303
  • DOI: 10.1021/acs.est.7b01630
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Distributions of Polycyclic Aromatic Hydrocarbons, Aromatic Ketones, Carboxylic Acids and Trace Metals in Arctic Aerosols: Long-Range Atmospheric Transport and Photochemical Degradation/Production at Polar Sunrise (2017)
  • Author(s): Dharmendra Singh, Kimitaka Kawamura, Ayako Yanase, Leonard Barrie
  • Journal Title: Environ. Sci. Technol. Volume: 51(16) Pages: 8992-9004
  • DOI: 10.1021/acs.est.7b01644
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Evidence of a reduction in cloud condensation nuclei activity of water-soluble aerosols caused by biogenic emissions in a cool-temperate forest (2017)
  • Author(s): A. Muller, Y. Miyazaki, E. Tachibana, K. Kawamura and T. Hiura
  • Journal Title: Scientific Reports Volume: 7 Pages: 8452-8452
  • DOI: 10.1038/s41598-017-08112-9
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Long-term (2001-2013) observations of water-soluble dicarboxylic acids and related compounds over the western North Pacific: trends, seasonality and source apportionment (2017)
  • Author(s): S.K.R. Boreddy, K. Kawamura, and E. Tachibana
  • Journal Title: Scientific Reports Volume: 7 Pages: 8518-8518
  • DOI: 10.1038/s41598-017-08745-w
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Secondary formation of oxalic acid and related organic species from biogenic sources in a larch forest at the northern slope of Mt. Fuji (2017)
  • Author(s): T. Mochizuki, K. Kawamura, Y. Miyazaki, R. Wada, Y. Takahashi, N. Saigusa, and A. Tani
  • Journal Title: Atmos. Environ. Volume: 166 Pages: 255-262
  • DOI: 10.1016/j.atmosenv.2017.07.28
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Homologous series of low molecular weight (C1-C10) monocarboxylic acids, benzoic acid and hydroxyacids in fine-mode (PM2.5) aerosols over the Bay of Bengal: Influence of heterogeneity in air masses and formation pathways (2017)
  • Author(s): Suresh Kumar Reddy Boreddy, Tomoki Mochizuki, Kimitaka Kawamura, Srinivas Bikkina, M. M. Sarin
  • Journal Title: Atmos. Environ. Volume: 167 Pages: 170-180
  • DOI: doi.org/10.1016/j.atmosenv.2017.08.008
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Molecular distributions and isotopic compositions of organic aerosols over the western North Atlantic: Dicarboxylic acids, oxoacids, α-dicarbonyls (glyoxal and methylglyoxal), lipid class compounds, sugars, and secondary organic aerosol tracers (2017)
  • Author(s): Kimitaka Kawamura, Mir Md. Mozammal Hoque, Timothy S. Bates and Patricia K. Quinn
  • Journal Title: Organic Geochemistry Volume: 113 Pages: 229-238
  • DOI: 10.1016/j.orggeochem.2017.08.007
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Effects of chemical composition and mixing state on size-resolved hygroscopicity and cloud condensation nuclei activity of submicron aerosols at a suburban site in northern Japan in summer (2017)
  • Author(s): Astrid Muller, Yuzo Miyazaki, Shankar. G. Aggarwal, Yasuyuki Kitamori, Suresh K. R. Boreddy, and Kimitaka Kawamura
  • Journal Title: Geophys. Res. Atmos. Volume: 122 Pages: 9301-9318
  • DOI: 10.1002/2017JD027286
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] High contribution of non-fossil sources to sub-micron organic aerosols in Beijing, China (2017)
  • Author(s): Zhang Y., Sun Y., Cao F., Chang Y., Liu S., Lee X., Agrios K., Kawamura K., Liu D., Ren L., Du W., Wang Z., Prevot A. S. H., Szidat S., Fu P.
  • Journal Title: Environ. Sci. & Technol. Volume: 51 Pages: 7842-7852
  • DOI: 10.1021/acs.est.7b01517
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Chemical constituents of carbonaceous and nitrogen aerosols over Thumba region, Trivandrum, India (2017)
  • Author(s): Hegde P. and Kawamra K.
  • Journal Title: Archives of Environmental Contamination and Toxicology Volume: 73 Pages: 456-473
  • DOI: 10.1007/s00244-017-0426-5
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] pringtime influences of Asian outflow and photochemistry on the distributions of diacids, oxoacids and α-dicarbonyls in the aerosols from the western North Pacific rim (2017)
  • Author(s): Bhagawati Kunwar, K. Torii, C. Zhu, and Kimitaka Kawamura
  • Journal Title: Tellus B Volume: 69 Pages: 1369341
  • DOI: doi.org/10.1080/16000889.2017.1369341
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Missing Ozone-Induced Potential Aerosol Formation at a Suburban Forest (2017)
  • Author(s): Nakayama T., Kuruma Y., Matsumi Y., Morino Y., Sato K., Tsurumaru H., Ramasamy S., Sakamoto Y., Kato S., Miyazaki Y., Mochizuki T., Kawamura K., Sadanaga Y., Nakashima Y., Matsuda K. and Kajii Y.
  • Journal Title: Atmospheric Environment Volume: 171 Pages: 91-97
  • DOI: doi.org/10.1016/j.atmosenv.2017.10.014
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Enhanced levels of atmospheric low-molecular weight monocarboxylic acids in gas and particulates over Mt. Tai in the North China Plain during field burning of agricultural wastes (2017)
  • Author(s): T. Mochizuki, K. Kawamura, S. Nakamura, Y. Kanaya, and Z. Wang
  • Journal Title: Atmos. Environ. Volume: 171 Pages: 237-247
  • DOI: 10.1016/j.atmosenv.2017.10.026
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Sources and formation processes of short-chain saturated diacids (C2-C4) in inhalable particles (PM10) from Huangshi city, Central China (2017)
  • Author(s): Liu Hongxia, Kimitaka Kawamura, Bhagawati Kunwar, Cao Junji, Zhang, Jiaquan, Zhan Changlin, Zheng Jingru, Yao Ruizhen, Liu Ting, Liu Xianli, Xiao Wensheng
  • Journal Title: Atmosphere Volume: 8(11) Pages: 213
  • DOI: 10.3390/atmos8110213
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Chemical characteristics of dicarboxylic acids and related organic compounds in PM2.5 during biomass-burning and non-biomass-burning seasons at a rural site of Northeast China (2017)
  • Author(s): F. Cao, S.C. Zhang, K. Kawamura, Y. Zhang
  • Journal Title: Environmental Pollution Volume: 231 Pages: 654-662
  • DOI: 10.1016/j.envpol.2017.08.045.
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] Long-term trends of water-soluble organic aerosols at Chichijima Island in the western North Pacific: Environmental changes in the marine atmosphere (2018)
  • Author(s): Kawamura K. and Tacibana E.
  • Organizer: Frontiers of Atmospheric Aerosol Studies: Toward the Understanding of the Health and Climate Effects
  • Int'l Joint Research
• [Presentation] Characterization of cloud condensation nuclei in a forest in Kii Peninsula, Japan (2018)
  • Author(s): Michihiro Mochida, Deng Yange, Kaori Kawana, Yuemei Han, Sara Kagami, Shuhei Ogawa, Yoko Iwamoto, Tomoki Nakayama, Ryo Kubodera, Kouji Adachi, Kimitaka Kawamura, and Tareq Hussein
  • Organizer: Frontiers of Atmospheric Aerosol Studies: Toward the Understanding of the Health and Climate Effects
  • Int'l Joint Research
• [Presentation] Tracer organic matter for bioaerosol research: Sugar compounds from fungal spores (2018)
  • Author(s): K. Kawamura, Y. Fukuda and C. Zhu
  • Organizer: Ibaraki Univ.-IRSN international workshop on atmospheric radio-cesium and bio-aerosol emission
  • Int'l Joint Research / Invited
• [Presentation] Long-term trends of water-soluble organic aerosols in the western North Pacific: Environmental changes in the marine atmosphere (2018)
  • Author(s): K. Kawamura
  • Organizer: The Internal Workshop on Surface-Earth System Science
  • Int'l Joint Research / Invited
• [Presentation] Seasonal and decadal variations in stable carbon isotope ratios of low molecular weight dicarboxylic acids and related compounds in the remote marine aerosols from the western North Pacific (2017)
  • Author(s): Kimitaka Kawamura
  • Organizer: JpGU-AGU 2017
  • Int'l Joint Research
• [Presentation] Molecular distributions and isotopic compositions of organic aerosols over the western North Atlantic: Dicarboxylic acids, oxoacids, α-dicarbonyls (glyoxal and methylglyoxal), lipid class compounds, sugars, and secondary organic aerosol tracers (2017)
  • Author(s): Kimitaka Kawamura, Mir Md. Mozammal Hoque, Timothy S. Bates, and Patricia K. Quinn
  • Organizer: Goldschmidt Conference 2017 Paris
  • Int'l Joint Research
• [Presentation] Long-Term (2001-2012) Trends in Carbonaceous Aerosols from Chichijima Island in the Western North Pacific: An Outflow Region of Asian Pollutants and Dust (2017)
  • Author(s): Boreddy S. K. R., Haque M and Kawamura K
  • Organizer: Goldschmidt Conference 2017 Paris
  • Int'l Joint Research
• [Presentation] Primary Biological and Biomass Burning Aerosols at the Northern Slope of Mt. Everest, Central Himalayas (2017)
  • Author(s): Fu P, Ren H, Wan X, Sun Y, Wang Z, Kawamura K, Liu C-Q and Cong Z
  • Organizer: Goldschmidt Conference 2017 Paris
  • Int'l Joint Research
• [Presentation] Changes in Atmospheric Loading, Composition and 13C Isotope Ratios of Organic Aerosols with Biological Activity in Northeast Asia Changes in Atmospheric Loading, Composition and 13C Isotope Ratios of Organic Aerosols with Biological Activity in Northeast Asia (2017)
  • Author(s): Pavuluri CM, Kawamura K, Fu P and Tachibana E
  • Organizer: Goldschmidt Conference 2017 Paris
  • Int'l Joint Research
• [Presentation] Water-soluble dicarboxylic acids, oxocarboxylic acids and α-dicarbonyls in atmospheric aerosols during summer in central Alaska: influence of biomass burning and biogenic sources (2017)
  • Author(s): Dhananjay K. Deshmukh, Kimitaka Kawamura, Md. Mozammel Haque, Yongwon Kim
  • Organizer: Europen Aerosol Conference
  • Int'l Joint Research
• [Presentation] Stable carbon and nitrogen isotopic composition in fine aerosol at a Central European background station (2017)
  • Author(s): P. Vodicka, K. Kawamura, B. Kunwar, J. Schwarz
  • Organizer: Europen Aerosol Conference
  • Int'l Joint Research
• [Presentation] 小笠原諸島・父島大気中に存在するシュウ酸の安定炭素同位体比：長期変動とその支配因子 (2017)
  • Author(s): 河村公隆、立花英里
  • Organizer: 地球化学会年会
• [Presentation] 大気微粒子と地球環境 :有機物組成・起源・変質・気候変動 (2017)
  • Author(s): 河村公隆
  • Organizer: 広島大学総合科学部セミナー
  • Invited
• [Presentation] 小笠原諸島・父島大気エアロゾル中に存在する低分子ジカルボン酸等の長期変動から見た大気環境変化 (2017)
  • Author(s): 河村公隆, Boreddy, 立花英里
  • Organizer: 大気化学討論会
• [Remarks] 河村公隆のホームページ [Kimitaka Kawamura]
  • URL: http://www.isc.chubu.ac.jp/kawamura/kawamura/homepage.htm
• [Remarks] 河村公隆研究室
  • URL: http://www.isc.chubu.ac.jp/kawamura/index.html