Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 21, issue 15
Articles | Volume 21, issue 15
https://doi.org/10.5194/acp-21-11815-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-21-11815-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 21, issue 15
Measurement report
 | 
09 Aug 2021
Measurement report |  | 09 Aug 2021

Measurement report: Source characteristics of water-soluble organic carbon in PM2.5 at two sites in Japan, as assessed by long-term observation and stable carbon isotope ratio

Nana Suto and Hiroto Kawashima

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Short summary
The sources and seasonal trends of water-soluble organic carbon (WSOC) in PM2.5 on long-term trends at two sites in Japan are investigated by carbon isotope ratio (δ13C) of WSOC. At the rural site, the δ13C of WSOC from autumn to spring was concluded to reflect mainly the biomass burning of rice straw. The heaviest δ13C of WSOC from February to April 2019 might reflect long-range transport of particles resulting from the overseas burning of C4 plants such as corn.
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