Zobrazeno 1 - 10
of 12
pro vyhledávání: '"B. Pollack"'
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 7479-7494 (2023)
Agricultural emissions, including those from concentrated animal feeding operations (CAFOs) for beef and dairy cattle, make up a large portion of the United States' total greenhouse gas (GHG) emissions. However, many CAFOs reside in areas where metha
Externí odkaz:
https://doaj.org/article/6ef3df1ed3474c239a49822690a51666
Autor:
V. Shah, D. J. Jacob, R. Dang, L. N. Lamsal, S. A. Strode, S. D. Steenrod, K. F. Boersma, S. D. Eastham, T. M. Fritz, C. Thompson, J. Peischl, I. Bourgeois, I. B. Pollack, B. A. Nault, R. C. Cohen, P. Campuzano-Jost, J. L. Jimenez, S. T. Andersen, L. J. Carpenter, T. Sherwen, M. J. Evans
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 1227-1257 (2023)
Satellite-based retrievals of tropospheric NO2 columns are widely used to infer NOx (≡ NO + NO2) emissions. These retrievals rely on model information for the vertical distribution of NO2. The free tropospheric background above 2 km is particularly
Externí odkaz:
https://doaj.org/article/5437956e29114505a9448b1abc87fa0e
Autor:
B. A. Nault, D. S. Jo, B. C. McDonald, P. Campuzano-Jost, D. A. Day, W. Hu, J. C. Schroder, J. Allan, D. R. Blake, M. R. Canagaratna, H. Coe, M. M. Coggon, P. F. DeCarlo, G. S. Diskin, R. Dunmore, F. Flocke, A. Fried, J. B. Gilman, G. Gkatzelis, J. F. Hamilton, T. F. Hanisco, P. L. Hayes, D. K. Henze, A. Hodzic, J. Hopkins, M. Hu, L. G. Huey, B. T. Jobson, W. C. Kuster, A. Lewis, M. Li, J. Liao, M. O. Nawaz, I. B. Pollack, J. Peischl, B. Rappenglück, C. E. Reeves, D. Richter, J. M. Roberts, T. B. Ryerson, M. Shao, J. M. Sommers, J. Walega, C. Warneke, P. Weibring, G. M. Wolfe, D. E. Young, B. Yuan, Q. Zhang, J. A. de Gouw, J. L. Jimenez
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 11201-11224 (2021)
Anthropogenic secondary organic aerosol (ASOA), formed from anthropogenic emissions of organic compounds, constitutes a substantial fraction of the mass of submicron aerosol in populated areas around the world and contributes to poor air quality and
Externí odkaz:
https://doaj.org/article/953f35d7db4b44a199ec9afe12ceeb91
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 11855-11868 (2020)
Air pollutant emissions estimates by top-down methods are subject to a variety of errors and uncertainties. This work uses a known source, a coal-fired power plant, to explore those errors. The known emissions amount and location remove two major typ
Externí odkaz:
https://doaj.org/article/5356a3ad24914a3e9a8b174c1f8d6dfe
Autor:
J. Li, J. Mao, A. M. Fiore, R. C. Cohen, J. D. Crounse, A. P. Teng, P. O. Wennberg, B. H. Lee, F. D. Lopez-Hilfiker, J. A. Thornton, J. Peischl, I. B. Pollack, T. B. Ryerson, P. Veres, J. M. Roberts, J. A. Neuman, J. B. Nowak, G. M. Wolfe, T. F. Hanisco, A. Fried, H. B. Singh, J. Dibb, F. Paulot, L. W. Horowitz
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 2341-2361 (2018)
Widespread efforts to abate ozone (O3) smog have significantly reduced emissions of nitrogen oxides (NOx) over the past 2 decades in the Southeast US, a place heavily influenced by both anthropogenic and biogenic emissions. How reactive nitrogen s
Externí odkaz:
https://doaj.org/article/cde22b7aba554f32a6b668804910e3e8
Autor:
J. Lindaas, D. K. Farmer, I. B. Pollack, A. Abeleira, F. Flocke, R. Roscioli, S. Herndon, E. V. Fischer
Publikováno v:
Atmospheric Chemistry and Physics, Vol 17, Pp 10691-10707 (2017)
The relative importance of wildfire smoke for air quality over the western US is expected to increase as the climate warms and anthropogenic emissions decline. We report on in situ measurements of ozone (O3), a suite of volatile organic compounds
Externí odkaz:
https://doaj.org/article/3fe9054072e24d5a9746024d8df752d9
Autor:
K. R. Travis, D. J. Jacob, J. A. Fisher, P. S. Kim, E. A. Marais, L. Zhu, K. Yu, C. C. Miller, R. M. Yantosca, M. P. Sulprizio, A. M. Thompson, P. O. Wennberg, J. D. Crounse, J. M. St. Clair, R. C. Cohen, J. L. Laughner, J. E. Dibb, S. R. Hall, K. Ullmann, G. M. Wolfe, I. B. Pollack, J. Peischl, J. A. Neuman, X. Zhou
Publikováno v:
Atmospheric Chemistry and Physics, Vol 16, Pp 13561-13577 (2016)
Ozone pollution in the Southeast US involves complex chemistry driven by emissions of anthropogenic nitrogen oxide radicals (NOx ≡ NO + NO2) and biogenic isoprene. Model estimates of surface ozone concentrations tend to be biased high in the regi
Externí odkaz:
https://doaj.org/article/0b26e47cd04545dcba34c93405710d4a
Autor:
G. M. Wolfe, J. Kaiser, T. F. Hanisco, F. N. Keutsch, J. A. de Gouw, J. B. Gilman, M. Graus, C. D. Hatch, J. Holloway, L. W. Horowitz, B. H. Lee, B. M. Lerner, F. Lopez-Hilifiker, J. Mao, M. R. Marvin, J. Peischl, I. B. Pollack, J. M. Roberts, T. B. Ryerson, J. A. Thornton, P. R. Veres, C. Warneke
Publikováno v:
Atmospheric Chemistry and Physics, Vol 16, Pp 2597-2610 (2016)
The chemical link between isoprene and formaldehyde (HCHO) is a strong, nonlinear function of NOx (i.e., NO + NO2). This relationship is a linchpin for top-down isoprene emission inventory verification from orbital HCHO column observations. It is al
Externí odkaz:
https://doaj.org/article/0df06eab5bda4c5c9c838fb156bcd7c7
Reassessing the ratio of glyoxal to formaldehyde as an indicator of hydrocarbon precursor speciation
Autor:
J. Kaiser, G. M. Wolfe, K. E. Min, S. S. Brown, C. C. Miller, D. J. Jacob, J. A. deGouw, M. Graus, T. F. Hanisco, J. Holloway, J. Peischl, I. B. Pollack, T. B. Ryerson, C. Warneke, R. A. Washenfelder, F. N. Keutsch
Publikováno v:
Atmospheric Chemistry and Physics, Vol 15, Iss 13, Pp 7571-7583 (2015)
The yield of formaldehyde (HCHO) and glyoxal (CHOCHO) from oxidation of volatile organic compounds (VOCs) depends on precursor VOC structure and the concentration of NOx (NOx = NO + NO2). Previous work has proposed that the ratio of CHOCHO to HCHO (R
Externí odkaz:
https://doaj.org/article/77729f7d4df8403598171da04e21a167
Autor:
D. B. Millet, M. Baasandorj, D. K. Farmer, J. A. Thornton, K. Baumann, P. Brophy, S. Chaliyakunnel, J. A. de Gouw, M. Graus, L. Hu, A. Koss, B. H. Lee, F. D. Lopez-Hilfiker, J. A. Neuman, F. Paulot, J. Peischl, I. B. Pollack, T. B. Ryerson, C. Warneke, B. J. Williams, J. Xu
Publikováno v:
Atmospheric Chemistry and Physics, Vol 15, Iss 11, Pp 6283-6304 (2015)
Formic acid (HCOOH) is one of the most abundant acids in the atmosphere, with an important influence on precipitation chemistry and acidity. Here we employ a chemical transport model (GEOS-Chem CTM) to interpret recent airborne and ground-based measu
Externí odkaz:
https://doaj.org/article/1c6312b67d7e41b18f888b845fe0a010