Articles | Volume 16, issue 3
Atmos. Chem. Phys., 16, 1761–1771, 2016
https://doi.org/10.5194/acp-16-1761-2016
Atmos. Chem. Phys., 16, 1761–1771, 2016
https://doi.org/10.5194/acp-16-1761-2016

Research article 15 Feb 2016

Research article | 15 Feb 2016

Hydroxyl radicals from secondary organic aerosol decomposition in water

Haijie Tong et al.

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AR by Manabu Shiraiwa on behalf of the Authors (29 Jan 2016)  Author's response    Manuscript
ED: Publish as is (02 Feb 2016) by Frank Keutsch
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Short summary
We provide experimental evidence that terpene and isoprene SOA form substantial amounts of OH radicals upon interaction with liquid water and iron. Our measurements and model results imply that the chemical reactivity of SOA in the atmosphere, particularly in clouds, can be faster than previously thought. Inhalation and deposition of SOA particles in the human respiratory tract may lead to a substantial release of OH radicals in vivo, causing oxidative stress and adverse aerosol health effects.
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