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Highly Oxygenated Molecules (HOM) from Gas-Phase Autoxidation Involving Organic Peroxy Radicals: A Key Contributor to Atmospheric Aerosol

Bianchi, Federico and Kurtén, Theo and Riva, Matthieu and Mohr, Claudia and Rissanen, Matti P. and Roldin, Pontus and Berndt, Torsten and Crounse, John D. and Wennberg, Paul O. and Mentel, Thomas F. and Wildt, Jürgen and Junninen, Heikki and Jokinen, Tuija and Kulmala, Markku and Worsnop, Douglas R. and Thornton, Joel A. and Donahue, Neil and Kjaergaard, Henrik G. and Ehn, Mikael (2019) Highly Oxygenated Molecules (HOM) from Gas-Phase Autoxidation Involving Organic Peroxy Radicals: A Key Contributor to Atmospheric Aerosol. Chemical Reviews, 119 (6). pp. 3472-3509. ISSN 0009-2665. PMCID PMC6439441. doi:10.1021/acs.chemrev.8b00395.

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Highly oxygenated organic molecules (HOM) are formed in the atmosphere via autoxidation involving peroxy radicals arising from volatile organic compounds (VOC). HOM condense on pre-existing particles and can be involved in new particle formation. HOM thus contribute to the formation of secondary organic aerosol (SOA), a significant and ubiquitous component of atmospheric aerosol known to affect the Earth’s radiation balance. HOM were discovered only very recently, but the interest in these compounds has grown rapidly. In this Review, we define HOM and describe the currently available techniques for their identification/quantification, followed by a summary of the current knowledge on their formation mechanisms and physicochemical properties. A main aim is to provide a common frame for the currently quite fragmented literature on HOM studies. Finally, we highlight the existing gaps in our understanding and suggest directions for future HOM research.

Item Type:Article
Related URLs:
URLURL TypeDescription CentralArticle
Bianchi, Federico0000-0003-2996-3604
Kurtén, Theo0000-0002-6416-4931
Rissanen, Matti P.0000-0003-0463-8098
Berndt, Torsten0000-0003-2014-6018
Crounse, John D.0000-0001-5443-729X
Wennberg, Paul O.0000-0002-6126-3854
Worsnop, Douglas R.0000-0002-8928-8017
Thornton, Joel A.0000-0002-5098-4867
Donahue, Neil0000-0003-3054-2364
Kjaergaard, Henrik G.0000-0002-7275-8297
Ehn, Mikael0000-0002-0215-4893
Alternate Title:Highly Oxygenated Organic Molecules (HOM) from Gas-Phase Autoxidation Involving Peroxy Radicals: A Key Contributor to Atmospheric Aerosol
Additional Information:© 2019 American Chemical Society. ACS AuthorChoice - This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited. Received: June 25, 2018; Publication Date (Web): February 25, 2019. We thank Ugo Molteni, Liine Heikkinen, Rasmus V. Otkjær, and Kristian H. Møller for useful discussion. We thank the CSC Centre for Scientific Computing in Finland and the Danish Center for Scientific Computing from the Copenhagen University. We also thank the Center for Exploitation of Solar Energy founded by the University of Copenhagen, the Swedish Strategic Research Program MERGE, and the European Regional Development Fund (project MOBTT42). This research has received funding from the Swiss National Science Foundation (P2EZP2_168787), the Academy of Finland (grant no. 1315203, 266388 and 299574), the U.S. National Science Foundation (grant nos. AGS 1801897, ACS 1508526), the U.S. Department of Energy’s Office of Science (grant no. DE-SC0018221), and the European Research Council starting grant COALA (grant no. 638703). The authors declare no competing financial interest.
Funding AgencyGrant Number
European Regional Development FundMOBTT42
Swiss National Science Foundation (SNSF)P2EZP2_168787
Academy of Finland131520
Academy of Finland266388
Academy of Finland299574
Department of Energy (DOE)DE-SC0018221
European Research Council (ERC)638703
Issue or Number:6
PubMed Central ID:PMC6439441
Record Number:CaltechAUTHORS:20190225-101818008
Persistent URL:
Official Citation:Highly Oxygenated Organic Molecules (HOM) from Gas-Phase Autoxidation Involving Peroxy Radicals: A Key Contributor to Atmospheric Aerosol. Federico Bianchi, Theo Kurtén, Matthieu Riva, Claudia Mohr, Matti P. Rissanen, Pontus Roldin, Torsten Berndt, John D. Crounse, Paul O. Wennberg, Thomas F. Mentel, Jürgen Wildt, Heikki Junninen, Tuija Jokinen, Markku Kulmala, Douglas R. Worsnop, Joel A. Thornton, Neil Donahue, Henrik G. Kjaergaard, and Mikael Ehn. Chemical Reviews 2019 119 (6), 3472-3509. DOI: 10.1021/acs.chemrev.8b00395
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:93220
Deposited By: Tony Diaz
Deposited On:25 Feb 2019 18:32
Last Modified:01 Mar 2022 18:16

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