Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 14
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.
https://doi.org/10.5194/acp-26-10197-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 14
Research article
 | 
22 Jul 2026
Research article |  | 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, Kohei Nakano, Keiichiro Hara, Raga Ishikawa, Hiroko Yamanaka, Atsushi Matsuki, Masahiko Hayashi, and Tomoaki Okuda

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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.
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