Articles | Volume 21, issue 8
Atmos. Chem. Phys., 21, 6365–6387, 2021
https://doi.org/10.5194/acp-21-6365-2021
Atmos. Chem. Phys., 21, 6365–6387, 2021
https://doi.org/10.5194/acp-21-6365-2021
Research article
27 Apr 2021
Research article | 27 Apr 2021

Mapping the drivers of formaldehyde (HCHO) variability from 2015 to 2019 over eastern China: insights from Fourier transform infrared observation and GEOS-Chem model simulation

Youwen Sun et al.

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Short summary
This study mapped the drivers of HCHO variability from 2015 to 2019 over eastern China. Hydroxyl (OH) radical production rates from HCHO photolysis were evaluated. The relative contributions of emitted and photochemical sources to the observed HCHO abundance were analyzed. Contributions of various emission sources and geographical regions to the observed HCHO summertime enhancements were determined.
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