Articles | Volume 19, issue 9
Atmos. Chem. Phys., 19, 6107–6123, 2019
https://doi.org/10.5194/acp-19-6107-2019
Atmos. Chem. Phys., 19, 6107–6123, 2019
https://doi.org/10.5194/acp-19-6107-2019
Research article
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08 May 2019
Research article  | Highlight paper | 08 May 2019

Heterogeneous sulfate aerosol formation mechanisms during wintertime Chinese haze events: air quality model assessment using observations of sulfate oxygen isotopes in Beijing

Jingyuan Shao et al.

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Short summary
Sulfate is a key species contributing to particle formation and growth during wintertime Chinese haze events. This study combines observations and modeling of oxygen isotope signatures in sulfate aerosol to investigate its formation mechanisms, with a focus on heterogeneous production on aerosol surface via H2O2, O3, and NO2 and trace metal catalyzed oxidation. Contributions from different formation pathways are presented.
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