G
Gabriel Isaacman-VanWertz
Researcher at Virginia Tech
Publications - 53
Citations - 2425
Gabriel Isaacman-VanWertz is an academic researcher from Virginia Tech. The author has contributed to research in topics: Chemistry & Isoprene. The author has an hindex of 20, co-authored 38 publications receiving 1646 citations. Previous affiliations of Gabriel Isaacman-VanWertz include University of California, Berkeley.
Papers
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Journal ArticleDOI
Volatile chemical products emerging as largest petrochemical source of urban organic emissions.
Brian C. McDonald,Brian C. McDonald,Joost A. de Gouw,Joost A. de Gouw,Jessica B. Gilman,Shantanu H. Jathar,Ali Akherati,Christopher D. Cappa,Jose L. Jimenez,Jose L. Jimenez,Julia Lee-Taylor,Julia Lee-Taylor,Patrick L. Hayes,Stuart A. McKeen,Stuart A. McKeen,Y. Cui,Y. Cui,Si-Wan Kim,Si-Wan Kim,Drew R. Gentner,Gabriel Isaacman-VanWertz,Allen H. Goldstein,Robert A. Harley,Gregory J. Frost,James M. Roberts,Thomas B. Ryerson,Michael Trainer +26 more
TL;DR: It is shown that human exposure to carbonaceous aerosols of fossil origin is transitioning away from transportation-related sources and toward VCPs, and the focus of efforts to mitigate ozone formation and toxic chemical burdens need to be adjusted.
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Effects of anthropogenic emissions on aerosol formation from isoprene and monoterpenes in the southeastern United States
Lu Xu,Hongyu Guo,Christopher M. Boyd,Mitchel Klein,Aikaterini Bougiatioti,Aikaterini Bougiatioti,K. M. Cerully,James R. Hite,Gabriel Isaacman-VanWertz,Nathan M. Kreisberg,Christoph Knote,K. F. Olson,Abigail R. Koss,Abigail R. Koss,Allen H. Goldstein,Susanne V. Hering,Joost A. de Gouw,Joost A. de Gouw,Karsten Baumann,Shan-Hu Lee,Athanasios Nenes,Rodney J. Weber,Nga L. Ng +22 more
TL;DR: It is shown that isoprene-derived SOA is directly mediated by the abundance of sulfate, instead of the particle water content and/or particle acidity as suggested by prior laboratory studies, which implies that future reduction in SO2 and NOx emissions can considerably reduce the SOA burden in the southeastern US.
Journal ArticleDOI
Monoterpenes are the largest source of summertime organic aerosol in the southeastern United States
Haofei Zhang,Haofei Zhang,Lindsay D. Yee,Ben H. Lee,Michael P. Curtis,David R. Worton,Gabriel Isaacman-VanWertz,John H. Offenberg,Michael Lewandowski,Tadeusz E. Kleindienst,M. R. Beaver,Amara L. Holder,William A. Lonneman,Kenneth S. Docherty,Mohammed Jaoui,Havala O. T. Pye,Weiwei Hu,Douglas A. Day,Pedro Campuzano-Jost,Jose L. Jimenez,Hongyu Guo,Rodney J. Weber,Joost A. de Gouw,Joost A. de Gouw,Abigail R. Koss,Abigail R. Koss,Eric S. Edgerton,William H. Brune,Claudia Mohr,Felipe D. Lopez-Hilfiker,Anna Lutz,Nathan M. Kreisberg,Steve Spielman,Susanne V. Hering,Kevin R. Wilson,Joel A. Thornton,Allen H. Goldstein +36 more
TL;DR: The results suggest that secondary OA 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.
Journal ArticleDOI
On the implications of aerosol liquid water and phase separation for organic aerosol mass
Havala O. T. Pye,Benjamin N. Murphy,Lu Xu,Nga L. Ng,Annmarie G. Carlton,Annmarie G. Carlton,Hongyu Guo,Rodney J. Weber,Petros Vasilakos,K. Wyat Appel,Sri Hapsari Budisulistiorini,Jason D. Surratt,Athanasios Nenes,Weiwei Hu,Weiwei Hu,Jose L. Jimenez,Jose L. Jimenez,Gabriel Isaacman-VanWertz,Pawel K. Misztal,Allen H. Goldstein +19 more
TL;DR: In this paper, water associated with inorganic constituents (inorganic water) can contribute to the partitioning medium for organic aerosol when relative humidities or organic matter to organic carbon (OM"∕"OC") ratios are high such that separation relative humidity is below the ambient relative humidity (RH).
Journal ArticleDOI
Urban pollution greatly enhances formation of natural aerosols over the Amazon rainforest
Manish Shrivastava,Meinrat O. Andreae,Meinrat O. Andreae,Meinrat O. Andreae,Paulo Artaxo,Henrique M. J. Barbosa,Larry K. Berg,Joel Brito,Joseph Ching,Richard C. Easter,Jiwen Fan,Jerome D. Fast,Zhe Feng,Jose D. Fuentes,Marianne Glasius,Allen H. Goldstein,Eliane G. Alves,Helber Barros Gomes,Dasa Gu,Alex Guenther,Alex Guenther,Shantanu H. Jathar,Saewung Kim,Ying Liu,Sijia Lou,Scot T. Martin,V. Faye McNeill,Adan S. S. Medeiros,Suzane S. de Sá,John E. Shilling,Stephen R. Springston,Rodrigo Augusto Ferreira de Souza,Joel A. Thornton,Gabriel Isaacman-VanWertz,Lindsay D. Yee,Rita Yuri Ynoue,Rahul A. Zaveri,Alla Zelenyuk,Chun Zhao +38 more
TL;DR: Simulations show that emissions of nitrogen-oxides from Manaus greatly enhance production of biogenic SOA by 60–200% on average with peak enhancements of 400%, through the increased oxidation of gas-phase organic carbon emitted by the forests.