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Monoterpenes are the largest source of summertime organic aerosol in the southeastern United States

Zhang, Haofei (author)
Yee, Lindsay D. (author)
Lee, Ben H. (author)
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Curtis, Michael P. (author)
Worton, David R. (author)
Isaacman-VanWertz, Gabriel (author)
Offenberg, John H. (author)
Lewandowski, Michael (author)
Kleindienst, Tadeusz E. (author)
Beaver, Melinda R. (author)
Holder, Amara L. (author)
Lonneman, William A. (author)
Docherty, Kenneth S. (author)
Jaoui, Mohammed (author)
Pye, Havala O.T. (author)
Hu, Weiwei (author)
Day, Douglas A. (author)
Campuzano-Jost, Pedro (author)
Jimenez, Jose L. (author)
Guo, Hongyu (author)
Weber, Rodney J. (author)
De Gouw, Joost (author)
Koss, Abigail R. (author)
Edgerton, Eric S. (author)
Brune, William (author)
Mohr, Claudia (author)
Lopez-Hilfiker, Felipe D. (author)
Lutz, Anna, 1986 (author)
Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology
Kreisberg, Nathan M. (author)
Spielman, Steve R. (author)
Hering, Susanne V. (author)
Wilson, Kevin R. (author)
Thornton, Joel A. (author)
Goldstein, Allen H. (author)
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 (creator_code:org_t)
2018-02-12
2018
English.
In: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences. - 0027-8424 .- 1091-6490. ; 115:9, s. 2038-2043
Related links:
https://www.pnas.org...
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https://doi.org/10.1...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • The chemical complexity of atmospheric organic aerosol (OA) has caused substantial uncertainties in understanding its origins and environmental impacts. Here, we provide constraints on OA origins through compositional characterization with molecular-level details. Our results suggest that secondary OA (SOA) from monoterpene oxidation accounts for approximately half of summertime fine OA in Centreville, AL, a forested area in the southeastern United States influenced by anthropogenic pollution. We find that different chemical processes involving nitrogen oxides, during days and nights, play a central role in determining the mass of monoterpene SOA produced. These findings elucidate the strong anthropogenic–biogenic interaction affecting ambient aerosol in the southeastern United States and point out the importance of reducing anthropogenic emissions, especially under a changing climate, where biogenic emissions will likely keep increasing.

Subject headings

NATURVETENSKAP  -- Kemi -- Analytisk kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences (hsv//eng)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
NATURVETENSKAP  -- Kemi -- Fysikalisk kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Physical Chemistry (hsv//eng)
NATURVETENSKAP  -- Kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences (hsv//eng)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)

Keyword

Aerosol source apportionment
Biogenic volatile organic compound oxidation
Nitrogen oxides

Publication and Content Type

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