Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 19, issue 14
Articles | Volume 19, issue 14
https://doi.org/10.5194/amt-19-4721-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-19-4721-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 14
Research article
 | 
23 Jul 2026
Research article |  | 23 Jul 2026

An integrated synchronous online analyzer for gaseous and particulate reactive oxygen species (ROS): development, characterization and field observations

Yihui Wang, Huan Song, Huabin Dong, Shiyi Chen, Linghan Zeng, and Keding Lu

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Latest update: 13 Aug 2026
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Short summary
We developed an online instrument to measure reactive oxygen species in air and particles at the same time, because these oxidants drive air pollution and can harm health. Tested in Beijing across four seasons, it showed stable performance. Levels were highest in spring and lowest in autumn. Humid autumn haze increased particle mass but not these oxidants, while strong sunlight in spring and summer increased them in both air and particles, showing how pollution type shapes atmospheric oxidation.
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