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

Hu, Weiwei; Palm, Brett B.; Day, Douglas A.; Campuzano-Jost, Pedro; Krechmer, Jordan E.; Peng, Zhe; de Sá, Suzane S.; Martin, Scot T.; Alexander, M. Lizabeth; Baumann, Karsten; Hacker, Lina; Kiendler-Scharr, Astrid; Koss, Abigail R.; de Gouw, Joost A.; Goldstein, Allen H.; Seco, Roger; Sjostedt, Steven J.; Park, Jeong-Hoo; Guenther, Alex B.; Kim, Saewung; Canonaco, Francesco; Prévôt, André S. H.; Brune, William H.; Jimenez, Jose L.

doi:https://doi.org/10.5194/acp-16-11563-2016

Articles | Volume 16, issue 18

Atmos. Chem. Phys., 16, 11563–11580, 2016

https://doi.org/10.5194/acp-16-11563-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

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

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 16, issue 18

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.

Supplement

https://doi.org/10.5194/acp-16-11563-2016-supplement

Data sets

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

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.