Articles | Volume 20, issue 22
https://doi.org/10.5194/acp-20-14407-2020
https://doi.org/10.5194/acp-20-14407-2020
Research article
 | 
27 Nov 2020
Research article |  | 27 Nov 2020

Size-resolved exposure risk of persistent free radicals (PFRs) in atmospheric aerosols and their potential sources

Qingcai Chen, Haoyao Sun, Wenhuai Song, Fang Cao, Chongguo Tian, and Yan-Lin Zhang

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Cited articles

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This study found environmentally persistent free radicals (EPFRs) are widely present in atmospheric particles of different particle sizes and exhibit significant particle size distribution characteristics. EPFR concentrations are higher in coarse particles than in fine particles in summer and vice versa in winter. The potential toxicity caused by EPFRs may also vary with particle size and season. Combustion is the most important source of EPFRs (>70 %).
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