High-Volume Collection of Aerosols in India and China using the Originally Developed Cyclone Sampler and Evaluation of Their Health Impacts
Project/Area Number |
17H04480
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 海外学術 |
Research Field |
Environmental dynamic analysis
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Research Institution | Keio University |
Principal Investigator |
Okuda Tomoaki 慶應義塾大学, 理工学部(矢上), 准教授 (30348809)
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Project Period (FY) |
2017-04-01 – 2020-03-31
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Project Status |
Completed (Fiscal Year 2019)
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Budget Amount *help |
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2019: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2018: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2017: ¥12,090,000 (Direct Cost: ¥9,300,000、Indirect Cost: ¥2,790,000)
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Keywords | エアロゾル / サイクロン / 有害性評価 / 環境分析 / 大気汚染防止・浄化 / 環境質定量化・予測 / PM2.5 / 酸化能 / 粒子状物質 / 生物由来物質 |
Outline of Final Research Achievements |
We installed the high-volume samplers using real impactor and cyclone for collecting aerosol particles in powder form without using a filter to three sites, National Physical Institute, India (New Delhi), Xi’an Jiaotong University (China), and Yokohama, Japan. The number of collected samples were 28 in India, 8 in China, and 23 in Japan. Endotoxin (Lipopolysaccharide, LPS) in the aerosol particles were analyzed, and their concentrations were 11±11 in India, 28±22 in China, and 23±27 in Japan (Mean±SD; unit in EU/mg). The endotoxin concentrations did not differ among three cities, and no clear seasonal trend of the endotoxin concentrations were observed.
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Academic Significance and Societal Importance of the Research Achievements |
近い将来、人間の早期死亡をもたらす最大の環境要因は大気汚染、特に粒子状物質が最も深刻となることが予測されている。本研究の遂行により、東アジアの複数地点において、フィルターを用いずに粉体として大気粒子状物質を得る体制を構築することができた。さらに、得られた粒子状物質の化学成分と生物由来成分の特徴を明らかにした。今後、得られた粒子を用いて細胞・動物への曝露実験を行うことが可能となった。本研究の成果は、人間の生活の質に直結する呼吸器系や免疫系に対する粒子状物質のリスクの解明に係る研究に資することができる。
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Report
(4 results)
Research Products
(33 results)
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[Journal Article] Development of a high-volume simultaneous sampler for fine and coarse particles using virtual impactor and cyclone techniques2018
Author(s)
Okuda, T., Shishido, D., Terui, Y., Fujioka, K., Isobe, R., Iwaki, Y., Funato, K., Inoue, K.
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Journal Title
Asian Journal of Atmospheric Environment
Volume: 12
Issue: 1
Pages: 78-86
DOI
Related Report
Peer Reviewed / Open Access
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[Presentation] Factors responsible for the biological responses of exposure to atmospheric fine and coarse particles collected by cyclone in three Japanese cities2019
Author(s)
Okuda, T., Goto, T., Takano, H., Honda, A., Onishi, T., Tanaka, M., Hasegawa, S., Kameda, T., Tohno, S., Hayashi, M., Hara, K., Nishita-Hara, C., Inoue, K.
Organizer
11th Asian Aerosol Conference (Hong Kong, China)
Related Report
Int'l Joint Research
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[Presentation] CYCLEX: Cyclone Collection of Particulate Matter Followed by Exposure Experiments2019
Author(s)
Tomoaki Okuda, Takaaki Goto, Hirohisa Takano, Akiko Honda, Toshinori Onishi, Michitaka Tanaka, Shuichi Hasegawa, Takayuki Kameda, Susumu Tohno, Chiharu Nishita-Hara, Keiichiro Hara, Masahiko Hayashi, Kozo Inoue
Organizer
American Association for Aerosol Research 37th Annual Conference (Portland, Oregon, USA)
Related Report
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[Presentation] Chemical analysis and DTT assay of powder form of atmospheric particles collected by cyclone2018
Author(s)
Terui, Y., Shishido, D., Kanemaru, A., Sato, T., Okuda, T.
Organizer
10th International Aerosol Conference, St. Louis, USA
Related Report
Int'l Joint Research
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[Presentation] Factors responsible for the health effects of atmospheric fine and coarse particles by cyclone collection and exposure experiments2018
Author(s)
Okuda, T., Takano, H., Honda, A., Hasegawa, S., Kameda, T., Tohno, S., Onishi, T., Tanaka, M., Hayashi, M., Hara, K., Nishita-Hara, C., Shishido, D., Terui, Y., Sato, T., Inoue, K.
Organizer
China-Japan-Korea Joint International Symposium on Continuously Improvement of Air Quality, 2018 Annual Meeting of AAE-CSES, Qingdao, China
Related Report
Int'l Joint Research / Invited
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[Presentation] Need of a high-volume PM2.5 sampler for performing better gravimetric measurements and chemical analyses2017
Author(s)
Aggarwal, S.G., Patel, P., Tsai, C.J., Soni, D., Singh, K., Okuda, T., Kotnala, R.K., Ojha, V.N., Aswal, D.K.
Organizer
10th Asian Aerosol Conference
Related Report
Int'l Joint Research
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