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  1. 学術雑誌論文
  2. その他
  1. 部局別インデックス
  2. 理学部

Transboundary and Local Air Pollutants in Western Japan Distinguished on the Basis of Ratios of Metallic Elements in Size-Segregated Aerosols

http://hdl.handle.net/20.500.12000/0002019367
http://hdl.handle.net/20.500.12000/0002019367
9bc25af5-4b31-4750-9276-00b8c0176ec6
名前 / ファイル ライセンス アクション
aaqr-16-12-lrt-0578.pdf aaqr-16-12-lrt-0578.pdf (645 KB)
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 2022-07-20
タイトル
タイトル Transboundary and Local Air Pollutants in Western Japan Distinguished on the Basis of Ratios of Metallic Elements in Size-Segregated Aerosols
言語 en
作成者 Taniguchi, Yuta

× Taniguchi, Yuta

en Taniguchi, Yuta

Shimada, Kojiro

× Shimada, Kojiro

en Shimada, Kojiro

Takami, Akinori

× Takami, Akinori

en Takami, Akinori

Lin, Neng-Huei

× Lin, Neng-Huei

en Lin, Neng-Huei

Chan, K. Chak

× Chan, K. Chak

en Chan, K. Chak

Kim, Pyo Yong

× Kim, Pyo Yong

en Kim, Pyo Yong

Hatakeyama, Shiro

× Hatakeyama, Shiro

en Hatakeyama, Shiro

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利情報
言語 en
権利情報 © Taiwan Association for Aerosol Research
言語 en
権利情報Resource https://creativecommons.org/licenses/by/4.0/
権利情報 the Creative Commons Attribution 4.0 License (CC BY 4.0)
主題
言語 en
主題Scheme Other
主題 Size-segregated aerosol analysis
言語 en
主題Scheme Other
主題 Chemical composition of metallic elements
言語 en
主題Scheme Other
主題 Difference in transboundary and local pollution
言語 en
主題Scheme Other
主題 Elemental ratios
内容記述
内容記述タイプ Abstract
内容記述 Trace metals in aerosols were observed at an urban site (Kumamoto, Kyushu, Japan) and a rural site (Cape Hedo, Okinawa, Japan) to investigate the relative contributions of transboundary air pollutants from mainland Asia and local air pollutants in western Japan. We used a cascade impactor to collect aerosols in five size classes. We apportioned the sources of the air masses on the basis of elemental components. Transboundary and local air pollutants were distinguished by use of the Pb/Cu and V/As ratios in selected size fractions of aerosols. The contribution of Pb (primarily from coal combustion in China) to total anthropogenic elements was greatest in spring, autumn, and winter in the 0.5-1 µm size fraction at both collection sites. The atmospheric environment at both sites was affected by this transboundary air pollutant. The contribution of Cu (primarily from local vehicle traffic) to total anthropogenic elements was greatest in all seasons in the 2.5-10 µm fraction at Kumamoto. Local air pollutants such as road dust, automobile brake abrasion, and waste incineration affected ambient air quality in Kumamoto. Because these pollutants resided mainly in the coarse aerosol fraction (> 2.5 µm), most of them were not transported to Cape Hedo in air bodies that we were able to trace to Kumamoto by backward projection. Based on our data the ambient air quality at Cape Hedo was little affected by local air pollutants emitted in the Kumamoto area.
言語 en
出版者
言語 en
出版者 Taiwan Association for Aerosol Research
言語
言語 eng
資源タイプ
資源タイプ journal article
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
関連情報
関連識別子
識別子タイプ DOI
関連識別子 https://doi.org/10.4209/aaqr.2016.12.0578
収録物識別子
収録物識別子タイプ PISSN
収録物識別子 1680-8584
収録物識別子タイプ EISSN
収録物識別子 2071-1409
収録物名
言語 en
収録物名 Aerosol and Air Quality Research
書誌情報
巻 17, 号 12, p. 3141-3150, 発行日 2017-12
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