2012 Fiscal Year Final Research Report
MODIFICATION OF AIRBORNE JAPANESE CEDAR POLLEN CONTACTED WITH YELLOW SAND IN URBAN ATMOSPHERE
Project Area | Impacts of aerosols in East Asia on plants and human health |
Project/Area Number |
20120015
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Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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Allocation Type | Single-year Grants |
Review Section |
Complex systems
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Research Institution | Saitama University |
Principal Investigator |
WANG Qingyue (O Seiyo) 埼玉大学, 理工学研究科, 准教授 (30344956)
|
Co-Investigator(Renkei-kenkyūsha) |
SUZUKI Miho 埼玉大学, 理工学研究科, 助教 (60222064)
NAKAJIMA Daisukei 独立行政法人国立環境研究所, 環境リスク研究センター, 研究員 (10281411)
MIWA Makoto 埼玉県環境科学国際センター, 研究員 (30375589)
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Project Period (FY) |
2008 – 2012
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Keywords | 花粉 / 黄砂 / アレルゲン / 大気汚染 |
Research Abstract |
The peaks of Japanese cedar (Cryptomeria japonica) pollen grains has been observed in Japan at the Yellow and (Kosa) events during the pollen scattering season. The pollen allergenic species distribute abundantly in fine particles in urban area released from coarse particles originated by the pollen grains. It is thought that those daughter allergenic particles are responsible for inducing asthma by breaking into lower respiratory tract. Therefore, it is necessary to clarify the release mechanism of the pollen allergenic species under air pollutants influence. In this study, we investigated the behavior of the pollen grains, its mall-sized allergenic species and allergenicity in the presence of ionic concentrations and pH values in rainwater during and after rainfall events.
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Research Products
(48 results)