WEKO3
アイテム
Assessment of the Sphericity of Submicrometer Particles Using a Single-particle Polar Nephelometer at an Urban Site in Japan
http://hdl.handle.net/10069/40397
http://hdl.handle.net/10069/40397a272e2c4-9204-430c-b483-f7536c0ef91c
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
AAQR20_2474.pdf (1.5 MB)
|
|
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-11-19 | |||||
| タイトル | ||||||
| タイトル | Assessment of the Sphericity of Submicrometer Particles Using a Single-particle Polar Nephelometer at an Urban Site in Japan | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Particle sphericity | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Polar nephelometer | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Scattering angular distribution | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Single particle | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者 |
Nakagawa, Maho
× Nakagawa, Maho× Nakayama, Tomoki× Sasago, Hiroshi× Kuruma, Yuki× Yai, Hikari× Ogawa, Shuhei× Deng, Yange× Mochida, Michihiro× Matsumi, Yutaka |
|||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | he sphericity of particles must be considered when evaluating their effects on the climate and human health. Thus, to examine this property and its controlling factors, this study measured the scattering angular distributions of both thermodenuded and non-thermodenuded individual particles with a diameter of 500 nm in real time using a home-made polar nephelometer in Nagoya, Japan. Estimating the sphericities based on the depths of the local minima in the scattering angular distributions, we found the ambient aerosols to be external mixtures of at least two types of particles, one with relatively high and the other with relatively low sphericity. Although most of the particles exhibiting high sphericity were removed as they passed through the thermodenuder, approximately one-third of the fraction exhibiting low sphericity remained. During the daytime, the proportion of the low-sphericity particles decreased, whereas the average sphericity of the high-sphericity particles increased, which can be attributed to photochemical formation and/or aging processes. On days with extremely high relative humidity, the diurnal variation in the average sphericity displayed another peak during the early morning, which may have been due to the secondary formation of nitrate. |
|||||
| 書誌情報 |
Aerosol and Air Quality Research 巻 20, 号 11, p. 2474-2484, 発行日 2020-07-08 |
|||||
| 出版者 | ||||||
| 出版者 | Taiwan Association for Aerosol Research | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 16808584 | |||||
| EISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 20711409 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.4209/aaqr.2020.01.0023 | |||||
| 権利 | ||||||
| 権利情報 | c The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited. | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 引用 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Aerosol and Air Quality Research, 20(11), pp.2474-2484; 2020 | |||||
