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

Zhang, Haofei; Yee, Lindsay D.; Lee, Ben H.; Curtis, Michael P.; Worton, David R.; Isaacman-VanWertz, Gabriel; Offenberg, John H.; Lewandowski, Michael; Kleindienst, Tadeusz E.; Beaver, Melinda R.; Holder, Amara L.; Lonneman, William A.; Docherty, Kenneth S.; Jaoui, Mohammed; Pye, Havala O. T.; Hu, Weiwei; Day, Douglas A.; Campuzano-Jost, Pedro; Jimenez, Jose L.; Guo, Hongyu; Weber, Rodney J.; de Gouw, Joost; Koss, Abigail R.; Edgerton, Eric S.; Brune, William; Mohr, Claudia; Lopez-Hilfiker, Felipe D.; Lutz, Anna; Kreisberg, Nathan M.; Spielman, Steve R.; Hering, Susanne V.; Wilson, Kevin R.; Thornton, Joel A.; Goldstein, Allen H.

doi:10.1073/pnas.1717513115

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

2018
By Zhang, Haofei ; Yee, Lindsay D. ; Lee, Ben H. ; ...
Source: Proceedings of the National Academy of Sciences of the United States of America, 115(9), 2038-2043.

[PDF-1.28 MB]

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Proceedings of the National Academy of Science of the United States
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Zhang, Haofei ; Yee, Lindsay D. ; Lee, Ben H. ; Curtis, Michael P. ; Worton, David R. ; ... More +

Zhang, Haofei ; Yee, Lindsay D. ; Lee, Ben H. ; Curtis, Michael P. ; Worton, David R. ; Isaacman-VanWertz, Gabriel ; Offenberg, John H. ; Lewandowski, Michael ; Kleindienst, Tadeusz E. ; Beaver, Melinda R. ; Holder, Amara L. ; Lonneman, William A. ; Docherty, Kenneth S. ; Jaoui, Mohammed ; Pye, Havala O. T. ; Hu, Weiwei ; Day, Douglas A. ; Campuzano-Jost, Pedro ; Jimenez, Jose L. ; Guo, Hongyu ; Weber, Rodney J. ; de Gouw, Joost ; Koss, Abigail R. ; Edgerton, Eric S. ; Brune, William ; Mohr, Claudia ; Lopez-Hilfiker, Felipe D. ; Lutz, Anna ; Kreisberg, Nathan M. ; Spielman, Steve R. ; Hering, Susanne V. ; Wilson, Kevin R. ; Thornton, Joel A. ; Goldstein, Allen H. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; ESRL (Earth System Research Laboratory) ; CIRES (Cooperative Institute for Research in Environmental Sciences)

OAR (Oceanic and Atmospheric Research) ; ESRL (Earth System Research Laboratory) ; CIRES (Cooperative Institute for Research in Environmental Sciences) Less -
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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.
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Proceedings of the National Academy of Sciences of the United States of America, 115(9), 2038-2043.
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https://doi.org/10.1073/pnas.1717513115
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Journal Article
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urn:sha256:da55b32c6a38cb456e5f8e225a3c1dbea43064d9ebb0625569f6ce2008172d38
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Monoterpenes are the largest source of summertime organic aerosol in the southeastern United States

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