Articles | Volume 18, issue 6
https://doi.org/10.5194/acp-18-3987-2018
https://doi.org/10.5194/acp-18-3987-2018
Research article
 | 
22 Mar 2018
Research article |  | 22 Mar 2018

Relationship between chemical composition and oxidative potential of secondary organic aerosol from polycyclic aromatic hydrocarbons

Shunyao Wang, Jianhuai Ye, Ronald Soong, Bing Wu, Legeng Yu, André J. Simpson, and Arthur W. H. Chan

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Short summary
Linkages between the chemical composition of PAH-derived SOA and oxidative potential (OP) were investigated under various atmospheric aging processes. Peroxides were found to be an insignificant OP contributor. Oligomerization and heterogeneous ozonolysis may enhance the OP of SOA. Mixing with Cu reduces the OP of PAH-derived SOA. Binding between redox-active Cu(II) and quinone was proved by NMR. Results highlighted the essential role of aerosol chemical composition in its health impact.
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