Item type |
琉球大学リポジトリ登録用アイテムタイプ(1) |
公開日 |
2022-07-14 |
タイトル |
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タイトル |
Comparison of Aerosol Hygroscopcity, Volatility, and Chemical Composition between a Suburban Site in the Pearl River Delta Region and a Marine Site in Okinawa |
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言語 |
en |
作成者 |
Cai, Mingfu
Tan, Haobo
Chan, K. Chak
Mochida, Michihiro
Hatakeyama, Shiro
Kondo, Yutaka
Schurman, I. Misha
Xu, Hanbing
Li, Fei
Shimada, Kojiro
Li, Liu
Deng, Yange
Yai, Hikari
Matsuki, Atsushi
Qin, Yiming
Zhao, Jun
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アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
権利情報 |
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言語 |
en |
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権利情報 |
© Taiwan Association for Aerosol Research |
権利情報 |
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言語 |
en |
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権利情報Resource |
https://creativecommons.org/licenses/by/4.0/ |
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権利情報 |
the Creative Commons Attribution 4.0 License (CC BY 4.0) |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Hygroscopicity |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Chemical composition |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Volatility |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Pearl River Delta |
内容記述 |
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内容記述タイプ |
Abstract |
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内容記述 |
A suite of advanced instruments were employed to measure aerosol hygroscopicity, volatility and chemical composition at a suburban site in the Pearl River Delta (PRD) Region and at a marine site in Okinawa, respectively. The results showed that the particle number concentration in PRD is approximately ten times higher than that in Okinawa. Organics contributes about one half of the total NR-PM_1 concentration in PRD, while sulfate is the dominant component (about 60%) in Okinawa. Diurnal variation of the chemical species demonstrated that the site in PRD was affected by trafficrelated sources and industrial emissions, while the one in Okinawa is mainly affected by regional emissions. The V-TDMA measurements showed that a large fraction (20-45%) of particles in Okinawa volatilized at about 200°C and nearly all particles volatilized at about 300°C, indicating that the particles were almost volatile in Okinawa. In contrast, a fraction (15-21%) of particles in PRD did not evaporate even when heated to about 300°C, implying that these particles might contain black carbon or low-volatile organics. For 40-200 nm particles in Okinawa, the hygroscopicity parameter κ is around 0.5, significantly higher than that of PRD particles (κ ≈ 0.26). Particles tend to have bimodal distribution in PRD and unimodal in Okinawa, indicating that the former is externally mixed while the latter is internally mixed. |
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言語 |
en |
出版者 |
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言語 |
en |
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出版者 |
Taiwan Association for Aerosol Research |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプ |
journal article |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
関連情報 |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.4209/aaqr.2017.01.0020 |
収録物識別子 |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
1680-8584 |
収録物識別子 |
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収録物識別子タイプ |
EISSN |
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収録物識別子 |
2071-1409 |
収録物名 |
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言語 |
en |
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収録物名 |
Aerosol and Air Quality Research |
書誌情報 |
巻 17,
号 12,
p. 3194-3208,
発行日 2017-12
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