Articles | Volume 20, issue 21
Atmos. Chem. Phys., 20, 13091–13107, 2020
Atmos. Chem. Phys., 20, 13091–13107, 2020

Research article 09 Nov 2020

Research article | 09 Nov 2020

Long-term observational constraints of organic aerosol dependence on inorganic species in the southeast US

Yiqi Zheng et al.


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Yiqi Zheng on behalf of the Authors (17 Sep 2020)  Author's response    Manuscript
ED: Publish as is (25 Sep 2020) by Manabu Shiraiwa
Short summary
This study aims to address a challenge in biosphere–atmosphere interactions: to what extent can biogenic organic aerosol (OA) be modified through human activities? From three surface network observations, we show OA is weakly dependent on sulfate and aerosol acidity in the summer southeast US, on both long-term trends and monthly variability. The results are in strong contrast to a global model, GEOS-Chem, suggesting the need to revisit the representation of aqueous-phase secondary OA formation.
Final-revised paper