Changes in black carbon and PM[2.5] in Tokyo in 2003-2017

DOI Web Site Web Site PubMed 被引用文献3件 参考文献42件 オープンアクセス
  • MORI Tatsuhiro
    Department of Physics, Faculty of Science Division I, Tokyo University of Science
  • OHATA Sho
    Institute for Space–Earth Environmental Research, Nagoya University Institute for Advanced Research, Nagoya University
  • MORINO Yu
    National Institute for Environmental Studies
  • KOIKE Makoto
    Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo
  • MOTEKI Nobuhiro
    Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo
  • KONDO Yutaka
    National Institute of Polar Research

書誌事項

タイトル別名
  • Changes in black carbon and PM<sub>2.5</sub> in Tokyo in 2003–2017

この論文をさがす

説明

<p>Black carbon (BC) particles cause adverse health effects and contribute to the heating of the atmosphere by absorbing visible solar radiation. Efforts have been made to reduce BC emissions, especially in urban areas; however, long-term measurements of BC mass concentration (MBC) are very limited in Japan. We report MBC measurements conducted in Tokyo from 2003 to 2017, showing that MBC decreased by a factor of 3 from 2003 to 2010 and was stable from 2010 to 2017. Fine particulate concentrations (PM2.5) decreased by a much smaller factor during 2003–2010. The diurnal variations of BC size distributions suggest that the BC in Tokyo originates mainly from local sources, even after 2010. Our three-dimensional model calculations show that BC from the Asian continent contributes a small portion (about 20%) of the annual average MBC in the Kanto region of Japan, which includes Tokyo. This indicates that continued reduction of BC emissions inside Japan should be effective in further decreasing MBC.</p>

収録刊行物

被引用文献 (3)*注記

もっと見る

参考文献 (42)*注記

もっと見る

関連プロジェクト

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ