Articles | Volume 20, issue 12
Atmos. Chem. Phys., 20, 7531–7552, 2020
https://doi.org/10.5194/acp-20-7531-2020
Atmos. Chem. Phys., 20, 7531–7552, 2020
https://doi.org/10.5194/acp-20-7531-2020
Research article
30 Jun 2020
Research article | 30 Jun 2020

Strong anthropogenic control of secondary organic aerosol formation from isoprene in Beijing

Daniel J. Bryant et al.

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Short summary
Using the chemical composition of offline filter samples, we report that a large share of oxidized organic aerosol in Beijing during summer is due to isoprene secondary organic aerosol (iSOA). iSOA organosulfates showed a strong correlation with the product of ozone and particulate sulfate. This highlights the role of both photochemistry and the availability of particulate sulfate in heterogeneous reactions and further demonstrates that iSOA formation is controlled by anthropogenic emissions.
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