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• 東アジアから輸送される炭素質エアロゾルの動態把握

  2013.03

Published Papers 【 display / non-display 】

Published Papers 【 display / non-display 】

• Sulfate in size-segregated aerosol particles atop Mt. Fuji transported from an eruption of Sakurajima

  Kojiro SHIMADA, Kei SUZUKI, Shungo KATO, Syuichi ITAHASHI, Nikita KOMUTA, Shiro HATAKEYAMA

  エアロゾル研究     2026.01 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

• Development of Big Data Visualization Platform Integrating Medical, Air Quality, and Meteorological Data

  Megumi Uza, Kang Dongsik, Mizuo Kajino, Hsiao-Chi Chuang, Tastuya Nagano, Yuji Fujitani, Ta-Chih Hsiao, Neng-Huei (George) Lin, Trần Ngọc Xuân, Kojiro Shimada

  2025 IEEE International Conference on Recent Advances in Computing and Systems     2025.09 [ Peer Review Accepted ]

  Type of publication: Research paper (international conference proceedings)

• Development of Big Data Visualization Platform Integrating Medical, Air Quality, and Meteorological Data

  Megumi Uza, Kang Dongsik, Mizuo Kajino, Hsiao-Chi Chuang, Tastuya Nagano, Yuji Fujitani, Ta-Chih Hsiao, Neng-Huei (George) Lin, Trần Ngọc Xuân, Kojiro Shimada

  2025 IEEE International Conference on Recent Advances in Computing and Systems     2025.09 [ Peer Review Accepted ]

  Type of publication: Research paper (international conference proceedings)

• Size-segregated sulfate on top of Mt. Fuji transported from Sakurajima volcano eruption

  Kojiro Shimada, Kei Suzuki, Shungo Kato, Shuuichi Itahashi, Shiro Hatakeyama

  ■■■     2024.05

  Type of publication: Research paper (other science council materials etc.)

  　View Summary

  Size-segregated aerosol samples were collected on Mt. Fuji with a cascade impactor during daytime and nighttime. We analyzed for their ionic and element compositions. Samples were collected from 29 July to 2 August (first period) and from 19 to 21 August 2013 (second period). Based on combined chemical components and CMAQ, in the first period, the air masses had been transported from East Asia. In the second period, the Sakurajima volcano eruption had been transported. NH4+, SO42–and elements were the major ions in 2.5 < Dp ≤ 10 during the second period. The slope of a linear regression of non-sea-salt (nss)-SO42– versus NH4+ was nearly unity, particularly during the first period. However, nss-SO42– in coarse aerosol was shifted in great excess in the second period. We have observed a rare phenomenon in which sulfate shifts to 2.5 < Dp ≤ 10. Although the formation process of (NH4)2SO4 in coarse particle is hypothesized two mechanisms, we hypothesize the third mechanism in this study. Currently, radiative forcing is being discussed for the detection of volcanic aerosols using satellites with particle sizes of 1.2 µm. If this can be clarified, it will improve the reproducibility of sulfate radiative forcing.

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    DOI

• Possibility of condensation of nitric acid for cloud condensation nucleus in the summer at Mt. Fuji

  Kojiro Shimada, Yoshun Geka, Shungo Kato, Chak K. Chan, Yong Pyo Kim, Chang-Feng Ou-Yang, Neng-Huei Lina, Shiro Hatakeyama

  Atmospheric Pollution Research     2023.09 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

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Other Papers 【 display / non-display 】

Other Papers 【 display / non-display 】

• 32nd International Conference on Aerosol Science and Technology(ICAST 2025)

  Mizuo KAJINO, Yoko IWAMOTO, Kojiro SHIMADA, Yuji FUJITANI, Koichi TATSU, Taisei MACHIDA

  Earozoru Kenkyu   41 ( 1 )   2026.03

   

Presentations 【 display / non-display 】

Presentations 【 display / non-display 】

• Developing an AI model to predict fluctuations in air pollutant concentrations and patient numbers in Taipei City

  Kojiro Shimada

  2026.03  -  2026.03 

• Development of Big Data Visualization Platform Integrating Medical, Air Quality, and Meteorological Data

  Megumi Uza, Kang Dongsik, Mizuo Kajino, Hsiao-Chi Chuang, Tastuya Nagano, Yuji Fujitani, Ta-Chih Hsiao, Neng-Huei (George) Lin, Trần Ngọc Xuân, Kojiro Shimada

  2025 IEEE International Conference on Recent Advances in Computing and Systems  2025.12  -  2025.12 

• Development of Big Data Visualization Platform Integrating Medical, Air Quality, and Meteorological Data

  Megumi Uza, Kang Dongsik, Mizuo Kajino, Hsiao-Chi Chuang, Tastuya Nagano, Yuji Fujitani, Ta-Chih Hsiao, Neng-Huei (George) Lin, Trần Ngọc Xuân, Kojiro Shimada

  2025 IEEE International Conference on Recent Advances in Computing and Systems  2025.12  -  2025.12 

• Creating New Preventive Medicine Using AIoT that Connects Air Pollution and Medicine

  Kojiro Shimada, Megumi Uza, Kang Dongsik, Mizuo Kajino, Hsiao-Chi Chuang, Trần Ngọc Xuân, Tastuya Nagano, Yuji Fujitani, Ta-Chih Hsiao, Neng-Huei (George, Lin

  Taichung Air Quality Management Technology Forum  2025.12  -  2025.12 

• Creating New Preventive Medicine Using AIoT that Connects Air Pollution and Medicine

  Kojiro Shimada, Megumi Uza, Kang Dongsik, Mizuo Kajino, Hsiao-Chi Chuang, Trần Ngọc Xuân, Tastuya Nagano, Yuji Fujitani, Ta-Chih Hsiao, Neng-Huei (George, Lin

  Taichung Air Quality Management Technology Forum  2025.12  -  2025.12 

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Industrial Property 【 display / non-display 】

Industrial Property 【 display / non-display 】

• VOC measuring equipment and measurement method

  Industrial Property No 特願2022-089210  (2022.05.13)

  Patent No 特許7656156  (2025.03.26)

  Kojiro Shimada

• VOC measuring equipment and measurement method

  Industrial Property No 特願2022-089210  (2022.05.13)

  Patent No 特許7656156  (2025.03.26)

  Kojiro Shimada

Academic Awards 【 display / non-display 】

Academic Awards 【 display / non-display 】

• 第2回(2023年度)日本大気化学会論文賞

  2024.05     Degradation of PAHs during long range transport based on simultaneous measurements at Tuoji Island, China, and at Fukue Island and Cape Hedo, Japan.

  Winner: Shimada K, Nohchi M Yang, Sugiyama T Miura, K, Takami A Sato, K Chen, X Kato, S, Kajii Y Meng, F, Hatakeyama S

• Oral presentation award

  2019.06     The Impact of Particulate Matters on the Formation and Chemistry of Tropical Heavy Rain Accompanied by Squall

• Oral presentation award

  2018.09    

• Oral presentation award

  2018.09    

• Oral presentation award

  2018.05    

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Grant-in-Aid for Scientific Research 【 display / non-display 】

Grant-in-Aid for Scientific Research 【 display / non-display 】

• Elucidation of the isoprene generation process induced by the photosensitizing effect of "plant grime" and leaf waxes.

  Grant-in-Aid for Transformative Research Areas (A)

  Project Year: 2026.04  -  2028.04 

  Investigator(s): Kojiro Shimada 

• Kobe BreathMap: Causal AI linking air pollution to acute respiratory events for decision-ready clinical support

  Frontiers seed funding

  Project Year: 2026.03  -  2027.03 

  Investigator(s): Kojiro Shimada, Asiya Khan, Jacqueline Lam, Gita Khalili Moghaddam 

• Development of a method for measuring isoprene generated by photodegradation of "plant grime"

  Grant-in-Aid for Transformative Research Areas (A)

  Project Year: 2024.04  -  2026.03 

  Direct: 6,600,000 (YEN)  Overheads: 8,580,000 (YEN)  Total: 1,980,000 (YEN)

• Elucidation of the formation process of organic aerosols transported during long distances from Tuoji Island, China to Cape Hedo, Okinawa

  Grant-in-Aid for Scientific Research(C)

  Project Year: 2022.04  -  2025.03 

  Direct: 3,200,000 (YEN)  Overheads: 4,160,000 (YEN)  Total: 960,000 (YEN)

• Study on atmospheric environmental problems in megacities that consider the surface of paved roads as a new reaction field

  Challenging research (sprout)

  Project Year: 2018.06  -  2021.03 

  Investigator(s): Shimada Kojiro 

  Direct: 3,800,000 (YEN)  Overheads: 4,940,000 (YEN)  Total: 1,140,000 (YEN)

  　View Summary

  In megacities around the world, atmospheric environmental problems are being addressed in both developed and developing countries.Among them, even Tokyo, which is one of the most regulated megacities, has not been able to solve the atmospheric environmental problem of photochemical oxidants (ozone).In this study, we changed the "reaction field" of VOCs generated by photolysis of organic aerosol from the atmosphere to paved roads, instead of the overlooked "source" of VOCs required for ozone generation. As a result, it was discovered that the organic aerosol deposited on the paved road was photodecomposed to release VOCs. VOC emissions were high, and it was found that the current simulation model underestimated VOC emissions by more than three times.

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SDGs 【 display / non-display 】

SDGs 【 display / non-display 】

Social Activity 【 display / non-display 】

Social Activity 【 display / non-display 】

• 2024.12

  　

  　

• エアロゾルの化学分析

  環境省環境研研究センター 

  2017.04

  -

  2018.03

• 東アジアの越境大気汚染

  沖縄県立読谷高校 

  2013.12

  　

  　

Media Coverage 【 display / non-display 】

Media Coverage 【 display / non-display 】

• Developing smart agriculture to optimize nitrogen fertilizer amounts in Okinawa Prefecture through "atmospheric environmental science" and "agricultural management"  Internet

  2025.9

  Author： Myself 

• Developing smart agriculture to optimize nitrogen fertilizer amounts in Okinawa Prefecture through "atmospheric environmental science" and "agricultural management"  Internet

  2025.9

  Author： Myself 

• 東アジア大陸から輸送される大気微粒子の吸湿性 ～化学組成との関係を明らかに・ラボ分析に基づく実験手法の有用性も提示～  Internet

  名古屋大学  名古屋大学研究成果発信サイト  https://www.nagoya-u.ac.jp/researchinfo/result/2022/05/post-249.html  2022.5

  Author： Other 

Academic Activities 【 display / non-display 】

Academic Activities 【 display / non-display 】

• Kojiro Shimada, Yuji Fujitani, Mizuo Kajino, Atsushi Matsuki 

  2026.8

  　

  　

  種別： Competition, symposium, etc. 

• 2025.10

  　

  　

  種別： Competition, symposium, etc. 

• Kojiro Shimada , Kang Dongsik , Hsiao-Chi Chuang , Tastuya Nagano , Yuji Fujitani , Ta-Chih Hsiao , Neng-Huei (George) Lin 

  2025.9

  　

  　

  種別： Competition, symposium, etc. 

• 2025.10

  　

  　

  種別： Competition, symposium, etc. 

• Kojiro Shimada , Kang Dongsik , Hsiao-Chi Chuang , Tastuya Nagano , Yuji Fujitani , Ta-Chih Hsiao , Neng-Huei (George) Lin 

  2025.9

  　

  　

  種別： Competition, symposium, etc. 

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