YOKO IWAMOTO

Last Updated :2025/05/09

Affiliations, Positions
Graduate School of Integrated Sciences for Life, Associate Professor
Web Site
https://www.eac.hiroshima-u.ac.jp/
https://home.hiroshima-u.ac.jp/yokoiw/HIRODAS2.html
E-mail
y-iwamotohiroshima-u.ac.jp
Other Contact Details
1-7-1 Kagamiyama, Higashi-Hiroshima, 739-8521 JAPAN, Japan
TEL : (+81)82-424-4568 FAX : (+81)
Self-introduction
I am working on physical measurement and chemical analysis of particulate matter in the atmosphere and oceans, elucidation of biogeochemical cycles between the atmosphere and the oceans through the particulate matter, and elucidation of the interaction between atmospheric aerosol, cloud, and precipitation.

Basic Information

Major Professional Backgrounds

  • 2009/04, 2011/09, Nagoya University, Institute for Advanced Research, Researcher
  • 2011/10, 2012/03, Nagoya University, Graduate School of Environmental Sciences, Reseracher
  • 2012/04, 2014/03, Kanazawa University, Institute of Nature and Environmental Technology, Researcher
  • 2014/04, 2017/01, Tokyo University of Science, Department of Physics Division I, Faculty of Science, Assistant Professor
  • 2017/02/01, 2019/03/31, Hiroshima University, Graduate School of Biosphere Science, Assistant Professor

Educational Backgrounds

  • Science University of Tokyo, Faculty of Science, Department of Physics Division I, Japan, 2000/04, 2004/03
  • The University of Tokyo, Graduate School of Science, Department of Earth and Planetary Science, Japan, 2004/04, 2006/03
  • The University of Tokyo, Graduate School of Science, Department of Earth and Planetary Science, Japan, 2006/04, 2009/03

Academic Degrees

  • The University of Tokyo
  • Ph.D, The University of Tokyo

Educational Activity

  • [Bachelor Degree Program] School of Integrated Arts and Sciences : Department of Integrated Global Studies : Integrated Global Studies
  • [Master's Program] Graduate School of Integrated Sciences for Life : Division of Integrated Sciences for Life : Program of Life and Environmental Sciences
  • [Doctoral Program] Graduate School of Integrated Sciences for Life : Division of Integrated Sciences for Life : Program of Life and Environmental Sciences

In Charge of Primary Major Programs

  • Integrated Global Studies

Research Fields

  • Mathematical and physical sciences;Earth and planetary science;Geochemistry / Cosmochemistry
  • Environmental science;Environmental analyses and evaluation;Environmental dynamic analysis

Research Keywords

  • Atmospheric aerosol
  • Cloud condensation nuclei
  • Biogeochemical cycles between atmosphere and ocean

Affiliated Academic Societies

  • The Oceanographic Society of Japan
  • The Japan Society of Atmospheric Chemistry
  • The Geochemical Society of Japan
  • Japan Association of Aerosol Science and Technology
  • American Geophysical Union
  • Japan Geoscience Union

Educational Activity

Course in Charge

  1. 2025, Liberal Arts Education Program1, 4Term, Experimental Methods and Laboratory Work in Science B
  2. 2025, Liberal Arts Education Program1, 3Term, Experimental Methods and Laboratory Work in Chemistry I
  3. 2025, Liberal Arts Education Program1, 3Term, Experimental Methods and Laboratory Work in Chemistry I
  4. 2025, Liberal Arts Education Program1, 3Term, Experimental Methods and Laboratory Work in Chemistry I
  5. 2025, Liberal Arts Education Program1, 3Term, Experimental Methods and Laboratory Work in Chemistry I
  6. 2025, Liberal Arts Education Program1, 1Term, Experimental Methods and Laboratory Work in Chemistry I
  7. 2025, Liberal Arts Education Program1, 3Term, Experimental Methods and Laboratory Work in Chemistry I
  8. 2025, Liberal Arts Education Program1, 3Term, Experimental Methods and Laboratory Work in Chemistry I
  9. 2025, Liberal Arts Education Program1, 3Term, Experimental Methods and Laboratory Work in Chemistry I
  10. 2025, Liberal Arts Education Program1, 4Term, Experimental Methods and Laboratory Work in Chemistry II
  11. 2025, Liberal Arts Education Program1, 4Term, Experimental Methods and Laboratory Work in Chemistry II
  12. 2025, Liberal Arts Education Program1, 4Term, Experimental Methods and Laboratory Work in Chemistry II
  13. 2025, Liberal Arts Education Program1, 4Term, Experimental Methods and Laboratory Work in Chemistry II
  14. 2025, Liberal Arts Education Program1, 2Term, Experimental Methods and Laboratory Work in Chemistry II
  15. 2025, Liberal Arts Education Program1, 4Term, Experimental Methods and Laboratory Work in Chemistry II
  16. 2025, Liberal Arts Education Program1, 4Term, Experimental Methods and Laboratory Work in Chemistry II
  17. 2025, Liberal Arts Education Program1, 4Term, Experimental Methods and Laboratory Work in Chemistry II
  18. 2025, Liberal Arts Education Program1, 1Term, Basic Laboratory Work in Chemistry
  19. 2025, Liberal Arts Education Program1, 1Term, Basic Laboratory Work in Chemistry
  20. 2025, Liberal Arts Education Program1, 1Term, Basic Laboratory Work in Chemistry
  21. 2025, Liberal Arts Education Program1, Second Semester, Chemistry and human being
  22. 2025, Graduate Education (Doctoral Program) , 2Term, SDGs Ideas Mining Seminar for Specialists
  23. 2025, Undergraduate Education, Intensive, Shipboard Exercise for Natural Environment Studies
  24. 2025, Undergraduate Education, 3Term, Laboratory Course in Natural Environmental Sciences A
  25. 2025, Undergraduate Education, 3Term, Practical Methods in Natural Environmental SciencesA
  26. 2025, Undergraduate Education, 1Term, Laboratory Course in Natural Environmental Sciences B
  27. 2025, Undergraduate Education, 1Term, Practical Methods in Natural Environmental SciencesB
  28. 2025, Undergraduate Education, 2Term, Laboratory Course in Natural Environmental Sciences C
  29. 2025, Undergraduate Education, 2Term, Practical Methods in Natural Environmental SciencesC
  30. 2025, Undergraduate Education, 2Term, Climate Change
  31. 2025, Undergraduate Education, 3Term, Earth Environmental Chemistry
  32. 2025, Undergraduate Education, 2Term, Earth Environmental Chemistry
  33. 2025, Undergraduate Education, OutOfTerm(2nd), Seminar on Social Cooperation
  34. 2025, Undergraduate Education, 3Term, Invitation to Integrated Global Studies II
  35. 2025, Undergraduate Education, Year, Graduation Thesis
  36. 2025, Undergraduate Education, 2Term, Internship Orientation
  37. 2025, Undergraduate Education, 2Term, Experimental Methods and Laboratory Work in Science for IGS I
  38. 2025, Undergraduate Education, 2Term, Experimental Methods and Laboratory Work in Science for IGS II
  39. 2025, Undergraduate Education, 4Term, Biogeochemistry I
  40. 2025, Undergraduate Education, 4Term, Biogeochemistry II
  41. 2025, Undergraduate Education, 2Term, Experimental Methods and Laboratory Work in Science for IGS III
  42. 2025, Graduate Education (Master's Program) , Year, Research for Academic Degree Dissertation in Life and Environmental Sciences
  43. 2025, Graduate Education (Master's Program) , First Semester, Exercises in Life and Environmental Sciences A
  44. 2025, Graduate Education (Master's Program) , Second Semester, Exercises in Life and Environmental Sciences B
  45. 2025, Graduate Education (Master's Program) , 1Term, Introduction to Integrated Arts and Sciences
  46. 2025, Graduate Education (Master's Program) , 4Term, Atmospheric Hydrosphere Chemistry
  47. 2025, Graduate Education (Doctoral Program) , 4Term, Exercises in Integrated Life Sciences
  48. 2025, Graduate Education (Doctoral Program) , Year, Research for Academic Degree Dissertation in Integrated Life Sciences

Research Activities

Academic Papers

  1. Roles of marine biota in the formation of atmospheric bioaerosols, cloud condensation nuclei, and ice-nucleating particles over the North Pacific Ocean, Bering Sea, and Arctic Ocean, ATMOSPHERIC CHEMISTRY AND PHYSICS, 24(3), 1777-1799, 20240208
    Link to Paper Search Results by DOI
  2. Numerical simulation of IL-8-based relative inflammation potentials of aerosol particles from vehicle exhaust and non-exhaust emission sources in Japan, ATMOSPHERIC ENVIRONMENT-X, 21, 202401
    Link to Paper Search Results by DOI
  3. Morphological features and water solubility of iron in aged fine aerosol particles over the Indian Ocean, ATMOSPHERIC CHEMISTRY AND PHYSICS, 23(17), 10117-10135, 20230911
    Link to Paper Search Results by DOI
  4. An aerosol odyssey: Navigating nutrient flux changes to marine ecosystems, ELEMENTA-SCIENCE OF THE ANTHROPOCENE, 11(1), 20231108
    Link to Paper Search Results by DOI
  5. Asian dust-deposition flux to the subarctic Pacific estimated using single quartz particles, SCIENTIFIC REPORTS, 13(1), 20230929
    Link to Paper Search Results by DOI
  6. Airborne hydrophilic microplastics in cloud water at high altitudes and their role in cloud formation, ENVIRONMENTAL CHEMISTRY LETTERS, 21(6), 3055-3062, 202312
    Link to Paper Search Results by DOI
  7. Photodegradation of the insecticide fipronil in aquatic environments: photo-dechlorination processes and products, ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 30(38), 89877-89888, 202308
    Link to Paper Search Results by DOI
  8. Marine aerosol feedback on biogeochemical cycles and the climate in the Anthropocene: lessons learned from the Pacific Ocean, ENVIRONMENTAL SCIENCE-ATMOSPHERES, 3(5), 782-798, 20230518
    Link to Paper Search Results by DOI
  9. Marine nitrogen fixation as a possible source of atmospheric water-solubleorganic nitrogen aerosols in the subtropical North Pacific, BIOGEOSCIENCES, 20(2), 439-449, 20230127
    Link to Paper Search Results by DOI
  10. Distribution and phylogeny of mercury methylation, demethylation, and reduction genes in the Seto Inland Sea of Japan, MARINE POLLUTION BULLETIN, 186, 202301
    Link to Paper Search Results by DOI
  11. Characteristics of Insoluble Spherical Particles in Atmospheric Deposition Before and After Blast Furnace Shutdown at Steelworks, Earozoru Kenkyu, 38(1), 33-38, 20230320
    Link to Paper Search Results by DOI
  12. Characterization of adhesivity of organic enriched sea spray aerosols by atomic force microscopy, ATMOSPHERIC ENVIRONMENT, 294, 20230201
    Link to Paper Search Results by DOI
  13. Marine aerosol feedback on biogeochemical cycles and climate in the Anthropocene, Archives of Atmospheric Chemistry Research, 20220720
  14. Growth of New Particles into Cloud Condensation Nuclei at the Summit of Mt. Fuji during Summer, Earozoru Kenkyu, 37(3), 202-211, 20220920
  15. Migration of terephthalate from scraps of poly(ethylene terephthalate) (PET) in water and artificial seawater, SCIENCE OF THE TOTAL ENVIRONMENT, 838, 20220910
    Link to Paper Search Results by DOI

  16. Optical properties of dissolved organic matter in Japanese rivers and contributions to photoformation of reactive oxygen species

    , SCIENCE OF THE TOTAL ENVIRONMENT, 826, 20220620
    Link to Paper Search Results by DOI
  17. Studies on Aerosols and Clouds Using Tokyo Skytree, Earozoru Kenkyu, 37(2), 96-103, 20220620
  18. Classification of aerosol-cloud interaction regimes over Tokyo, ATMOSPHERIC RESEARCH, 272, 202207
    Link to Paper Search Results by DOI
  19. Annual trend of aerosol number concentration at the summit of Mt. Fuji during summer of 2006-2019, Earozoru Kenkyu, 37(1), 36-44, 20220320
  20. Wetting properties of fresh urban soot particles: Evaluation based on critical supersaturation and observation of surface trace materials, SCIENCE OF THE TOTAL ENVIRONMENT, 811, 20220310
    Link to Paper Search Results by DOI
  21. Decadal vision in oceanography 2021: Air‒sea boundary, Umi no Kenkyu, 30(5), 199-225, 20211115
  22. Aerosol-Cloud Interaction at the Summit of Mt. Fuji, Japan: Factors Influencing Cloud Droplet Number Concentrations, APPLIED SCIENCES-BASEL, 11(18), 202109
    Link to Paper Search Results by DOI
  23. Detection of Aerosol Particles from Siberian Biomass Burning over the Western North Pacific, ATMOSPHERE, 11(11), 202011
    Link to Paper Search Results by DOI
  24. Global Bromine- and Iodine-Mediated Tropospheric Ozone Loss Estimated Using the CHASER Chemical Transport Model, SOLA, 16, 220-227, 20201125
    Link to Paper Search Results by DOI
  25. Seasonal Trends of Atmospheric Ice Nucleating Particles Over Tokyo, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 125(23), 20201216
    Link to Paper Search Results by DOI
  26. ★, Contribution of oceanic aerosol particles to cloud condensation nuclei, Earozoru Kenkyu, 35(3), 192-198, 2020
  27. Heterogeneity and potential aquatic toxicity of hydrogen peroxide concentrations in selected rivers across Japan, SCIENCE OF THE TOTAL ENVIRONMENT, 733, 20200901
    Link to Paper Search Results by DOI
  28. Factors controlling the degradation of hydrogen peroxide in river water, and the role of riverbed sand, SCIENCE OF THE TOTAL ENVIRONMENT, 716, 20200510
    Link to Paper Search Results by DOI
  29. Tracing the sources and formation pathways of atmospheric particulate nitrate over the Pacific Ocean using stable isotopes, ATMOSPHERIC ENVIRONMENT, 209, 152-166, 20190715
    Link to Paper Search Results by DOI
  30. Individual particle analysis of marine aerosols collected during the North-South transect cruise in the Pacific Ocean and its marginal seas, Journal of Oceanography, 75, 513-524, 2019
  31. Ground-based observation of lightning-induced nitrogen oxides at a mountaintop in free troposphere, JOURNAL OF ATMOSPHERIC CHEMISTRY, 76(2), 133-150, 201906
    Link to Paper Search Results by DOI
  32. Optimization for the Determination of Hydrogen Peroxide in River Water Based on the Fenton Reaction with Terephthalate, BUNSEKI KAGAKU, 68, 125-131, 2019
  33. Characterization of Humic-Like Substances (HULIS) in Atmospheric Aerosols Using Aerosol Mass Spectrometry or Proton Nuclear Magnetic Resonance Spectroscopy, Humic Substances Research, 15(1), 11-20, 20190329
  34. ★, Biogeochemical cycle between atmosphere and ocean via particulate matters, Archives of Atmospheric Chemistry Research, 40, 040A04, 20190128
  35. ★, Continuous measurement of hygroscopic characteristics of PM2.5 using an optical particle counter -including case analysis of high concentration events in December 2016-, Earozoru Kenkyu, 33(4), 238-247, 2018
  36. Biogenic sulfur compounds in spring phytoplankton bloom in the western North Pacific off the coast of northern Japan, PROGRESS IN OCEANOGRAPHY, 165, 145-157, 2018
    Link to Paper Search Results by DOI
  37. Development of an Analytical Method for the Detection of NOz and Its Application to the Atmospheric Analysis at a Mountain Site, BUNSEKI KAGAKU, 67(6), 333-340, 201806
    Link to Paper Search Results by DOI
  38. Characteristics of Droplet Size Distributions in Low-Level Stratiform Clouds Observed from Tokyo Skytree, JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN, 96(4), 405-413, 2018
    Link to Paper Search Results by DOI
  39. Long-term cloud condensation nuclei number concentration, particle number size distribution and chemical composition measurements at regionally representative observatories, ATMOSPHERIC CHEMISTRY AND PHYSICS, 18(4), 2853-2881, 20180228
    Link to Paper Search Results by DOI
  40. Collocated observations of cloud condensation nuclei, particle size distributions, and chemical composition, SCIENTIFIC DATA, 4, 170003, 2017
  41. ★, Simultaneous measurement of CCN activity and chemical composition of fine-mode aerosols at Noto Peninsula, Japan, in autumn 2012, Aerosol and Air Quality Research, 16, 2107-2118, 2016
  42. Characterization of chromophoric water-soluble organic matter in urban, forest and marine aerosols by HR-ToF-AMS analysis and excitation emission matrix spectroscopy, Environmental Science & Technology, 50, 10351-10360, 2016
  43. Property of Black Carbon Particles Measured by a Laser-Induced Incandescence Technique in the spring at Noto Peninsula, Japan, Earozoru Kenkyu, 31(3), 194-202, 2016
  44. Fungal spores overwhelm biogenic organic aerosols in a mid-latitudinal forest, Atmospheric Chemistry and Physics, 16, 7497-7506, 2016
  45. Light absorption and morphological properties of soot-containing aerosols observed at an East Asian outflow site, Noto Peninsula, Japan, Atmospheric Chemistry and Physics, 16, 2525-2541, 2016
  46. High Concentrations of Sulfur Dioxide and Sulfate Particles Observed in Suzu City, the Noto Peninsula in Late July 2012 : On the Influence of the Smoke of Sakurajima, TENKI, 62, 201-208, 2015
  47. ★, Spatial variation of biogenic and crustal elements in suspended particulate matter from surface waters of the North Pacific and its marginal seas, Progress in Oceanography, 126, 211-223, 2014
  48. Formation and evolution of biogenic secondary organic aerosol over a forest site in Japan, Journal of Geophysical Research, 119, 259-273, 2014
  49. Observation of new particle formation over a mid-latitude forest facing the North Pacific, Atmospheric Environment, 64, 77-84, 2013
  50. Spatial variation of particulate biogenic and crustal elements in surface waters of subarctic North pacific and its marginal seas during summer, KAIYO MONTHLY, 44(7), 422-427, 2012
  51. ★, Biogeochemical implications of increased mineral particle concentrations in surface waters of the northwestern North Pacific during an Asian dust event, Geophysical Research Letters, 38, L01604, 2011
  52. Distributions of short-lived iodocarbons and biogenic trace gases in the open ocean and atmosphere in the western North Pacific, Marine Chemistry, 118, 156-170, 2010
  53. ★, Single particle analysis of suspended particles during SEEDS II iron fertilization experiment, Marine Chemistry, 113, 212-218, 2009
  54. Evidence for the grazing hypothesis: grazing reduces phytoplankton in the western subarctic Pacific (SEEDS II), Journal of Oceanography, 63, 983-994, 2007
  55. Chemical composition and size distribution of sea fog over the northern North Pacific, Chikyu Kagaku, 41, 165-172, 2007

Publications such as books

  1. 2014/03/12, Western Pacific Air-Sea Interaction Study, New Particle Formation of Marine Aerosols, TERRAPUB, 2014, Scholarly Book, Joint work, English, K. Miura, H. Furutani, Y. Iwamoto, K. Nagano, H. Kobayashi, M. Mochida, H. Mukai, S. Hashimoto, M. Takami and M. Uematsu, 284, 37-41
  2. 2010/11/05, A guide to oceanologic and nautical professionals, Tokai University Press, 2010, 11, Textbook, Joint work, 日本語, 978-4-486-01881-0, 173, 52-60

Invited Lecture, Oral Presentation, Poster Presentation

  1. Biogeochemical cycles between atmosphere and ocean through atmospheric aerosol, Yoko IWAMOTO, Habitable Japan ECHOES 2024 Summer School, 2024/09/25, With Invitation, Japanese, Habitable Japan Early Career HotspOttErS, Takehara, Hiroshima
  2. Influence of Organic Matter from Algae on Cloud Condensation Nucleus Characteristics of Sea Spray Aerosol, Yoko IWAMOTO, Yutaka OKAMOTO, Ayumi IWATA, Kohei ONO, Atsushi MATSUKI, Yumiko OBAYASHI and Koji HAMASAKI, The 13th Asia Aerosol Conference 2024, 2024/11/05, Without Invitation, English, The 13th Asia Aerosol Conference 2024, Kuching, Malaysia
  3. Vertical Profile Observation of Marine Aerosols by Tethered Balloon, Yoko IWAMOTO, Fumikazu TAKETANI, Yutaro MURAKAMI, JAAST 41th Annual Meeting and Symposium on Aerosol Science and Technology, 2024/08/20, Without Invitation, Japanese, Japan Association of Aerosol Science and Technology, Hachioji
  4. Vertical profile of inorganic iodine concentration in the western North Pacific surface layer during summer, Yoko IWAMOTO, Hidenobu KASHIMURA, Kazuhiko TAKEDA, Fumikazu TAKETANI, Takashi SEKIYA, Tianchang CUI, Atsushi OOKI, Yugo KANAYA, JpGU Meeting 2024, 2024/05/28, Without Invitation, Japanese, JpGU, Makuhari Messe, Chiba
  5. Behavior of Combustion-Origin Iron in the Atmosphere before and after Blast Furnace Shutdown at Steel Works, Yoko IWAMOTO, Kazuki SHIMOJI, Yuki NAKAGAWA, Taisei KODAMA, Kazuhiko TAKEDA, 2023/11/20, Without Invitation, Japanese, Japan Society of Atmospheric Chemistry, Nagasaki
  6. Atmospheric aerosol observation using a training ship base -Focusing on the dynamics of combustion-derived iron from steelworks-, Yoko IWAMOTO, Kazuki SHIMOJI, Yuki NAKAGAWA, Taisei KODAMA, Kazuhiko TAKEDA, Annual Meeting of GSJ 2023, 2023/09/23, Without Invitation, Japanese, Geochemical Society of Japan, Tokyo
  7. Photodegradation of atmospheric microplastics: evaluation by laboratory experiments using model substances, Yoko IWAMOTO, Mayuna ISHIMI, Yasuhiro ISHIHARA, Nobuharu TAKAHASHI, Kazuhiko TAKEDA, Hiroshi OKOCHI, The 40th Annual Meeting and Symposium on Aerosol Science and Technology, 2023/08/30, Without Invitation, Japanese, Japan Association of Aerosol Science and Technology, Gunma (Kiryu)
  8. Evaluation of photodegradation of microplastics in the atmosphere by using model substances, Yoko IWAMOTO, Mayuna ISHIMI, Yoko IWAMOTO, Yasuhiro ISHIHARA, Nobuharu Takahashi, Kazuhiko TAKEDA, Hiroshi OKOCHI, JpGU Meeting 2023, 2023/05/23, Without Invitation, Japanese, JpGU, Makuhari Messe
  9. Single particle analysis of aerosols collected by tethered balloon-borne observation over the western North Pacific, Yoko IWAMOTO, Fumikazu TAKETANI, Yutaro MURAKAMI, JpGU Meeting 2023, 2023/05/21, Without Invitation, Japanese, JpGU, Makuhari Messe
  10. Cloud condensation nucleus activity of sea salt aerosol particles containing marine algal saccharides, Yoko Iwamoto, Koji Hamasaki, Yumiko Obayashi, 2023/02/27, Without Invitation, Japanese
  11. Spatial distribution of iodine in the tropical western North Pacific surface water, Yoko IWAMOTO, Kazuhiko TAKEDA, Hisahiro TAKASHIMA, Fumikazu TAKETANI, Yugo KANAYA, SOLAS Open Science Conference 2022, 2022/09/27, Without Invitation, English, Surface Ocean-Lower Atmosphere Study, Online & Cape Town, South Africa
  12. Characteristics of Particles in the Atmosphere and Rainwater before and after Blast Furnace Shutdown at Steel Works, Yoko IWAMOTO, Kazuki SHIMOJI, Taisei KODAMA, Kazuhiko TAKEDA, Annual Meeting of GSJ 2022, 2022/09/07, Without Invitation, Japanese, Geochemical Society of Japan, Kochi, Japan
  13. Characteristics of Insoluble Spherical Particles in Atmospheric Deposition Before and After Blast Furnace Shutdown at Steelworks, Yoko Iwamoto, Taisei Kodama, The 39th Annual Meeting and Symposium on Aerosol Science & Technology, 2022/08/03, Without Invitation, Japanese, Yokohama, Japan
  14. Spatial variation of Iodine by chemical sate in the tropical western North Pacific surface water, Yoko IWAMOTO, Kazuhiko TAKEDA, Hisahiro TAKASHIMA, Fumikazu TAKETANI, Yugo KANAYA, JpGU Meeting 2022, 2022/06/03, Without Invitation, English, Japan Geoscience Union, Makuhari Messe
  15. Dry nitrogen deposition to the eastern Indian Ocean during boreal autumn and its impact on the primary production, Yoko Iwamoto, Katsuhiro Kawamoto, Fumikazu Taketani, Kazuhiko Matsumoto, Makio C. Honda, Eko Siswanto, Yugo Kanaya, Takashi Sekiya, Maki N. Aita and Kazuyo Yamaji, PICES 2021 Virtual Annual Meeting, 2021/10/26, Without Invitation, English, The North Pacific Marine Science Organization (PICES), Online
  16. Seasonal variation in number concentrations of cloud condensation nuclei in Higashi Hiroshima-with the influence of the eruption of Nishinoshima volcano-, Yoko Iwamoto, Shuei Kaizuka, Kazuhiko Takeda, Kazuhiko Miura, Annual Meeting of GSJ 2021, 2021/09/07, Without Invitation, Japanese, Geochemical Society of Japan, Hirosaki/ Online
  17. Estimation of Nitrogen Deposition Flux over the Eastern Indian Ocean and Evaluation of Its Impact on Primary Production, Yoko Iwamoto, Fumikazu Taketani, Kazuhiko Matsumoto, Makio C. Honda, Eko Siswanto, Yugo Kanaya, Takashi Sekiya, Maki, N, Aita, Katsuhiro Kawamoto, Kazuyo Yamaji, 2021/08/26, Without Invitation, Japanese, JAAST, Online
  18. Seasonal Variation of Phosphate in Atmospheric Aerosols in Higashi-Hiroshima, Yoko Iwamoto, Mako Hirota, Kazuhiko Takeda, Hiroshi Sakugawa, JpGU Meeting 2021, 2021/06/03, Without Invitation, Japanese, Japan Geophysical Union, ONLINE
  19. Evaluation of the Effects of Atmospheric Nitrogen on Primary Production in the Eastern Indian Ocean in Autumn, Yoko Iwamoto, Katsuhiro Kawamoto, Fumikazu Taketani, Makio C. Honda, Eko Siswanto, Yugo Kanaya, Maki N Aita, Takashi Sekiya, Kazuyo Yamaji, Fall Meeting in 2020, 2020/11/28, Without Invitation, Japanese, The Oceanographic Society of Japan, ONLINE
  20. Dry deposition flux of atmospheric nitrogen into the Kuroshio region, Yoko Iwamoto, Kazuki Kamezaki, Shohei Hattori, Kazuhiko Miura, Mitsuo Uematsu, Annual Meeting of GSJ 2020, 2020/11/21, Without Invitation, Japanese, The Geochemical Society of Japan, ONLINE
  21. Cloud condensation nucleus property observed in Higashi Hiroshima, Shuei Kaizuka, Yoko Iwamoto, Kazuhiko Takeda, Kazuhiko Miura, 25th JpSAC Annual Meeting, 2020/11/11, Without Invitation, Japanese, Japan Society of Atmospheric Chemistry, ONLINE
  22. Seasonal Variation of Phosphate in Atmospheric Aerosol in Higashi Hiroshima, Yoko Iwamoto, Mako Hirota, Kazuhiko Takeda, Hiroshi Sakugawa, 2020/08/27, Without Invitation, Japanese, JAAST, Online
  23. Estimation of Nitrogen Deposition over the Kuroshio Region in the Autumn of 2015, Yoko Iwamoto, Kamezaki, K., Hattori, S., Hirora, M., Kaizuka, S., Kazuhiko, T., Kazuhiko, M., Uematsu, M., JpGU-AGU Joint Meeting 2020, 2020/07/13, Without Invitation, Japanese, JpGU, Online
  24. Atmospheric Nitrogen Deposition to the Eastern Indian Ocean and Its Implication for Primary Production, Y. Iwamoto, K. Kawamoto, K. Matsumoto, M. C. Honda, Y. Kanaya, T. Sekiya, M. N. Aita, K. Yamaji, F. Taketani, JpGU-AGU Joint Meeting 2020, 2020/07/13, Without Invitation, Japanese, JpGU, Online
  25. Atmospheric Nitrogen Deposition to the Eastern Indian Ocean during Boreal Autumn, Iwamoto, Y., Kawamoto, K, Taketani, F., Kanaya, Y., Sekiya, T., Aita, M. N. and Yamaji, K., Ocean Science Meeting 2020, 2020/02/20, Without Invitation, English, AGU, OSLO, TOS, San Diego, US
  26. Atmospheric deposition flux of inorganic nitrogen into the Eastern Indian Ocean during boreal autumn, Iwamoto, Y., Kawamoto, K., Taketani, F., Kanaya, Y. Aita, M. N., Sekiya, T. and Yamaji, K., 2019/09/17, Without Invitation, Japanese
  27. Impact of reduction in atmospheric aerosols on the light environment and ecosystem of the ocean, Yoko Iwamoto, Yuji Sakuno, Kazuhiko Takeda, Kazuhiko Koike, Aki Kato, Hidetoshi Saito, 2019/09/05, Without Invitation, Japanese, JAAST, Hiroshima University
  28. Mineral particles suspending in the surface waters of the North Pacific and its marginal seas – atmospheric dust deposition as investigated from seawater analysis, Yoko Iwamoto, Mitsuo Uematsu, JpGU2019, 2019/05/30, Without Invitation, English, JpGU, Chiba, JAPAN
  29. Biogeochemical cycle between atmosphere and ocean via particulate matters -Award lecture for JpSAC Young Scientist Award-, Yoko Iwamoto, JpGU2019, 2019/05/30, With Invitation, Japanese, JpGU, Chiba, JAPAN
  30. CCN ACTIVITIES OF MARINE AEROSOLS OVER THE NORTH PACIFIC AND ITS MARGINAL SEAS DURING SUMMER, Yoko Iwamoto, Yusuke Miki, Momoka Yoshizue, Kazuhiko Miura, Hiroshi Furutani, Mitsuo Uematsu, SOLAS Open Science Conference 2019, 2019/04/22, Without Invitation, English, SOLAS International Program Office, Sapporo, JAPAN
  31. Factors determining the longitudinal distribution of biogenic sulfur compounds in aerosols over the subarctic North Pacific, Akiho Suizu, Ippei Nagao, Mitsuo Uematsu, Akiho Suizu, Ippei Nagao, Mitsuo Uematsu, 2018 Joint 14th iCACGP Quadrennial Symposium and 15th IGAC Science Conference, 2018/09/28, Without Invitation, English, iCACGP, IGAC, Takamatsu, Kagawa, Japan
  32. Observation of aerosol and cloud-droplet properties at the summit of Mt. Fuji (altitude 3776 m), Iwamoto, Y., Watanabe, A., Kataoka, R., Miura, K. and Uematsu, M., Frontiers of Atmospheric Aerosol Studies: Toward the Understanding of the Health and Climate Effects, 2018/01/23, Without Invitation, English, Nagoya University, Nagoya, Japan
  33. Properties of cloud condensation nuclei at the summit of Mt. Fuji, and their relationship to fog droplets, Watanabe, A., Iwamoto, Y., Kataoka, R., Miura, K., Uematsu, M., Kobayashi, H., 2017 Symposium on Atmospheric Chemistry and Physics at Mountain Sites, 2017/11/09, Without Invitation, English, NPO Mount Fuji Research Station, Gotemba, Shizuoka, Japan

Awards

  1. 2024/11/07, 3rd Place Winner, Poster Presentation (Aerosol Chemistry), 13th Asian Aerosol Conference 2024, Influence of Organic Matter from Algae on Cloud Condensation Nucleus Characteristics of Sea Spray Aerosol
  2. 2018/09/27, JpSAC Young Scientist Award, The Japan Society of Atmospheric Chemistry, Biogeochemical cycle between atmosphere and ocean via particulate matters
  3. 2014/04, Award of the Sasakawa Scientific Research Grant, The Japan Science Society, ｢波の花｣に含まれる有機物を測る-海洋性有機物の大気エアロゾルへの寄与
  4. 2010/08, Koichi Iinoya Award;, Japan Association of Aerosol Science and Technology, 飛沫から生成する海洋起源エアロゾルの雲凝結核特性

External Funds

Acceptance Results of Competitive Funds

  1. Joint Research Conference Programs, Study on Chemical Properties and Origin of Surfactants in Sea Foam, 2021, 2021
  2. 2019, 2019
  3. KAKENHI(Grant-in-Aid for Scientific Research (C)), 2019, 2021
  4. 2018, 2018
  5. 2017, 2017
  6. 2017, 2017

Social Activities

Other Social Contributions

  1. 2021 Asian Female Aerosol Scientists Forum, 2021 Asian Female Aerosol Scientists Forum, Taiwan Association for Aerosol Research The Climate Change Adaptation Teaching Alliance (Southern), the Ministry of Education 12th Asian Aerosol Conference (AAC), 2021 Asian Female Aerosol Scientists Forum, 2021/11/27, 2021/11/27, Online, Panelist, Meeting or assembly, Graduate students
  2. JAAM-CREPSUM FORUM SERIES: Deep Dive Into the Journey of Women in Ocean Science, JAAM-CREPSUM FORUM SERIES: Deep Dive Into the Journey of Women in Ocean Science, JSPS, JAAM-CREPSUM FORUM SERIES: Deep Dive Into the Journey of Women in Ocean Science, 2021/10/12, 2021/10/12, Online, Panelist, Meeting or assembly, College students
  3. China-Japan High-level Expert Symposium on Marine Environment, China-Japan High-level Expert Symposium on Marine Environment, JST, China-Japan High-level Expert Symposium on Marine Environment, 2021/07/02, 2021/07/02, Online, Panelist, Meeting or assembly, College students

History as Peer Reviews of Academic Papers

  1. 2022, Asian Journal of Atmospheric Environment, Editor
  2. 2021, Asian Journal of Atmospheric Environment, Editor
  3. 2018, Earozoru Kenkyu, Editor
  4. 2017, Earozoru Kenkyu, Editor, 1