Improved detection of atmospheric bioaerosols by integrating online fluorescence method with offline measurements based on DNA staining
| Project/Area Number |
26281018
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | Japan Agency for Marine-Earth Science and Technology |
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Principal Investigator |
KANAYA Yugo 国立研究開発法人海洋研究開発機構, 地球表層物質循環研究分野, 分野長代理 (60344305)
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| Co-Investigator(Kenkyū-buntansha) |
宮川 拓真 国立研究開発法人海洋研究開発機構, 地球表層物質循環研究分野, 研究員 (30707568)
竹谷 文一 国立研究開発法人海洋研究開発機構, 地球表層物質循環研究分野, 主任研究員 (50377785)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥16,120,000 (Direct Cost: ¥12,400,000、Indirect Cost: ¥3,720,000)
Fiscal Year 2016: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2015: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2014: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
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| Keywords | 大気現象 / 生物起源有機エアロゾル / PM2.5 / 蛍光法 / DNA / 生物起源エアロゾル |
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| Outline of Final Research Achievements |
Organic particles consist 20-50% of PM2.5 aerosol mass concentrations in the Earth's atmosphere. However, their origins are mostly not well identified. In this study, criteria to identify bioaerosols, a possibly important class of unidentified organics, were established for an online sensor detecting autofluorescence (WIBS4), by comparison to a more reliable, offline measurement with DNA staining. Specifically, comparison measurements at Fukue Island, western Japan, and those during three research cruises on R/V Mirai were conducted and the results were comprehensively analyzed. Optimization of the criteria was made separately for terrestrial and marine origin air masses. We also found that bioaerosols from Siberian forest fires even reached open ocean on the Bering Sea, and also that marine atmospheric bioaerosol concentrations could depend on wind speed and SST, in addition to their corresponding concentrations in the surface seawater.
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Report
(4 results)
Research Products
(15 results)
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[Presentation] Synthesis of observations of atmospheric black carbon, organics and PM2.5 aerosols over Japan, Korea, and China with numerical simulations to better constrain their emission rates and origins2015
Author(s)
Yugo Kanaya, Fumikazu Taketani, Xiaole Pan, Yuichi Komazaki, Takuma Miyakawa, Hitoshi Matsui, Kazuyo Yamaji, Zifa Wang, Limseok Chang, Daeil Kang, Akinori Takami, Kohei Ikeda, Hiroshi Tanimoto, Yutaka Kondo
Organizer
AOGS 12th Annual Meeting
Place of Presentation
Suntec国際会議場, Singapore
Year and Date
2015-08-07
Related Report
Int'l Joint Research
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[Presentation] Mass concentrations of organic aerosol and PM2.5 in East Asia reproduced by using volatility base-set approach in the WRF-Chem model2014
Author(s)
Yugo Kanaya, Hitoshi Matsui, Fumikazu Taketani, Xiaole Pan, Yuichi Komazaki, Kohei Ikeda, Kazuyo Yamaji, Zifa Wang, Limseok Chang, Daeil Kang, Akinori Takami, Hiroshi Tanimoto, and Yutaka Kondo
Organizer
13th Quadrennial ICACGP Symposium & 13th IGAC Science Conference on Atmospheric Chemistry
Place of Presentation
Natal Convention Center, Natal, Brazil
Year and Date
2014-09-25
Related Report
