Articles | Volume 26, issue 14
https://doi.org/10.5194/acp-26-10197-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-10197-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Jul 2026
Research article |
| 22 Jul 2026
| 22 Jul 2026
Oxidative potential of fine particles at urban and rural sites in eastern and western Japan: effects of transboundary transport from continental Asia and local emissions
Chiharu Nishita-Hara
CORRESPONDING AUTHOR
Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Yokohama, 233-8522, Japan
Kohei Nakano
Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Yokohama, 233-8522, Japan
Keiichiro Hara
Department of Earth System Science, Faculty of Science, Fukuoka University, Fukuoka, 814-0180, Japan
Raga Ishikawa
Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Yokohama, 233-8522, Japan
Hiroko Yamanaka
Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Yokohama, 233-8522, Japan
Atsushi Matsuki
Institute of Nature and Environmental Technology, Kanazawa University, Kanazawa, 920-1192, Japan
Masahiko Hayashi
Department of Earth System Science, Faculty of Science, Fukuoka University, Fukuoka, 814-0180, Japan
Tomoaki Okuda
Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Yokohama, 233-8522, Japan
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Short summary
Fine atmospheric aerosol particles collected at urban and rural sites in Japan exhibited clear differences in oxidative potential. Urban-collected particles had higher oxidative potential, whereas rural-collected particles, influenced by aerosols transported from continental Asia, showed lower oxidative potential, suggesting that the oxidative toxicity of fine particles decreases during atmospheric transport, probably because of secondary particle formation.
Fine atmospheric aerosol particles collected at urban and rural sites in Japan exhibited clear...
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