TY - JOUR
T1 - Monoterpenes are the largest source of summertime organic aerosol in the southeastern United States
AU - Zhang, Haofei
AU - Yee, Lindsay D.
AU - Lee, Ben H.
AU - Curtis, Michael P.
AU - Worton, David R.
AU - Isaacman-VanWertz, Gabriel
AU - Offenberg, John H.
AU - Lewandowski, Michael
AU - Kleindienst, Tadeusz E.
AU - Beaver, Melinda R.
AU - Holder, Amara L.
AU - Lonneman, William A.
AU - Docherty, Kenneth S.
AU - Jaoui, Mohammed
AU - Pye, Havala O.T.
AU - Hu, Weiwei
AU - Day, Douglas A.
AU - Campuzano-Jost, Pedro
AU - Jimenez, Jose L.
AU - Guo, Hongyu
AU - Weber, Rodney J.
AU - De Gouw, Joost
AU - Koss, Abigail R.
AU - Edgerton, Eric S.
AU - Brune, William
AU - Mohr, Claudia
AU - Lopez-Hilfiker, Felipe D.
AU - Lutz, Anna
AU - Kreisberg, Nathan M.
AU - Spielman, Steve R.
AU - Hering, Susanne V.
AU - Wilson, Kevin R.
AU - Thornton, Joel A.
AU - Goldstein, Allen H.
N1 - Funding Information:
ACKNOWLEDGMENTS. We thank Prof. Ronald Cohen’s group at University of California, Berkeley for useful discussion. This work was supported by NSF Grants AGS-1250569 and AGS-1644406. W.H., D.A.D., and J.L.J. were supported by NSF Grant AGS-1360834 and US Department of Energy (DOE) (BER/ASR) Grant DE-SC0016559. The VUV measurements performed at the Advanced Light Source, Lawrence Berkeley National Laboratory were supported by the director, Office of Energy Research, Office of Basic Energy Science, of the DOE under Contract DE-AC02-05CH11231. The US EPA through its Office of Research and Development partially funded and collaborated in the research described here. The manuscript was subjected to peer review and has been cleared for publication. Mention of trade names or commercial products does not constitute endorsement or recommendation for use.
Funding Information:
We thank Prof. Ronald Cohen’s group at University of California, Berkeley for useful discussion. This work was supported by NSF Grants AGS-1250569 and AGS-1644406. W.H., D.A.D., and J.L.J. were supported by NSF Grant AGS-1360834 and US Department of Energy (DOE) (BER/ASR) Grant DE- SC0016559. The VUV measurements performed at the Advanced Light Source, Lawrence Berkeley National Laboratory were supported by the director, Office of Energy Research, Office of Basic Energy Science, of the DOE under Contract DE- AC02-05CH11231. The US EPA through its Office of Research and Development partially funded and collaborated in the research described here. The manuscript was subjected to peer review and has been cleared for publication. Mention of trade names or commercial products does not constitute endorsement or recommendation for use.
PY - 2018/2/27
Y1 - 2018/2/27
N2 - 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.
AB - 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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U2 - 10.1073/pnas.1717513115
DO - 10.1073/pnas.1717513115
M3 - Article
C2 - 29440409
AN - SCOPUS:85042698575
SN - 0027-8424
VL - 115
SP - 2038
EP - 2043
JO - Proceedings of the National Academy of Sciences of the United States of America
JF - Proceedings of the National Academy of Sciences of the United States of America
IS - 9
ER -