Articles | Volume 16, issue 18
Atmos. Chem. Phys., 16, 11563–11580, 2016
https://doi.org/10.5194/acp-16-11563-2016

Special issue: Observations and Modeling of the Green Ocean Amazon (GoAmazon2014/5)...

Atmos. Chem. Phys., 16, 11563–11580, 2016
https://doi.org/10.5194/acp-16-11563-2016

Research article 19 Sep 2016

Research article | 19 Sep 2016

Volatility and lifetime against OH heterogeneous reaction of ambient isoprene-epoxydiols-derived secondary organic aerosol (IEPOX-SOA)

Weiwei Hu et al.

Data sets

SOAS 2013 Centreville Site Data Download NOAA http://esrl.noaa.gov/csd/groups/csd7/measurements/2013senex/Ground/DataDownload/

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Short summary
IEPOX-SOA is biogenically derived secondary organic aerosol under anthropogenic influence, which has been shown to comprise a substantial fraction of OA globally. We investigated the lifetime of ambient IEPOX-SOA in the SE US and Amazonia, with an oxidation flow reactor and thermodenuder coupled with MS-based instrumentation. The low volatility and long lifetime of IEPOX-SOA against OH radicals' oxidation (> 2 weeks) was observed, which can help to constrain OA impact on air quality and climate.
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