Agricultural fires in the southeastern US during SEAC(4)RS: Emissions of trace gases and particles and evolution of ozone, reactive nitrogen, and organic aerosol

Liu, Xiaoxi; Zhang, Y.; Huey, L. G.; Yokelson, R. J.; Wang, Y.; Jimenez, J. L.; Campuzano‐Jost, P.; Beyersdorf, A. J.; Blake, D. R.; Choi, Y.; St. Clair, J. M.; Crounse, J. D.; Day, D. A.; Diskin, G. S.; Fried, A.; Hall, S. R.; Hanisco, T. F.; King, L. E.; Meinardi, S.; Mikoviny, T.; Palm, B. B.; Peischl, J.; Perring, A. E.; Pollack, I. B.; Ryerson, T. B.; Sachse, G.; Schwarz, J. P.; Simpson, I. J.; Tanner, D. J.; Thornhill, K. L.; Ullmann, K.; Weber, R. J.; Wennberg, P. O.; Wisthaler, A.; Wolfe, G. M.; Ziemba, L. D.

doi:10.1002/2016jd025040

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Agricultural fires in the southeastern US during SEAC(4)RS: Emissions of trace gases and particles and evolution of ozone, reactive nitrogen, and organic aerosol

2016
By Liu, Xiaoxi ; Zhang, Y. ; Huey, L. G. ; ...
Source: Journal of Geophysical Research-Atmospheres, 121(12), 7383-7414.

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Journal Title:

Journal of Geophysical Research: Atmospheres
Personal Author:

Liu, Xiaoxi ; Zhang, Y. ; Huey, L. G. ; Yokelson, R. J. ; Wang, Y. ; ... More +

Liu, Xiaoxi ; Zhang, Y. ; Huey, L. G. ; Yokelson, R. J. ; Wang, Y. ; Jimenez, J. L. ; Campuzano‐Jost, P. ; Beyersdorf, A. J. ; Blake, D. R. ; Choi, Y. ; St. Clair, J. M. ; Crounse, J. D. ; Day, D. A. ; Diskin, G. S. ; Fried, A. ; Hall, S. R. ; Hanisco, T. F. ; King, L. E. ; Meinardi, S. ; Mikoviny, T. ; Palm, B. B. ; Peischl, J. ; Perring, A. E. ; Pollack, I. B. ; Ryerson, T. B. ; Sachse, G. ; Schwarz, J. P. ; Simpson, I. J. ; Tanner, D. J. ; Thornhill, K. L. ; Ullmann, K. ; Weber, R. J. ; Wennberg, P. O. ; Wisthaler, A. ; Wolfe, G. M. ; Ziemba, L. D. Less -
NOAA Program & Office:

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

OAR (Oceanic and Atmospheric Research) ; ESRL (Earth System Research Laboratory) ; CSL (Chemical Sciences Laboratory) ; CIRES (Cooperative Institute for Research in Environmental Sciences) Less -
Description:

Emissions from 15 agricultural fires in the southeastern U.S. were measured from the NASA DC-8 research aircraft during the summer 2013 Studies of Emissions and Atmospheric Composition, Clouds and Climate Coupling by Regional Surveys (SEAC(4)RS) campaign. This study reports a detailed set of emission factors (EFs) for 25 trace gases and 6 fine particle species. The chemical evolution of the primary emissions in seven plumes was examined in detail for similar to 1.2 h. A Lagrangian plume cross-section model was used to simulate the evolution of ozone (O-3), reactive nitrogen species, and organic aerosol (OA). Observed EFs are generally consistent with previous measurements of crop residue burning, but the fires studied here emitted high amounts of SO2 and fine particles, especially primary OA and chloride. Filter-based measurements of aerosol light absorption implied that brown carbon (BrC) was ubiquitous in the plumes. In aged plumes, rapid production of O3, peroxyacetyl nitrate ( PAN), and nitrate was observed with Delta O-3/Delta CO,Delta PAN/Delta NOy, and Delta nitrate/Delta NOy reaching similar to 0.1,similar to 0.3,and similar to 0.3. For five selected cases, the model reasonably simulated O3 formation but underestimated PAN formation. No significant evolution of OA mass or BrC absorption was observed. However, a consistent increase in oxygen-to-carbon (O/C) ratios of OA indicated that OA oxidation in the agricultural fire plumes was much faster than in urban and forest fire plumes. Finally, total annual SO2, NOx, and CO emissions from agricultural fires in Arkansas, Louisiana, Mississippi, and Missouri were estimated (within a factor of similar to 2) to be equivalent to similar to 2% SO2 from coal combustion and similar to 1% NOx and similar to 9% CO from mobile sources.
Source:

Journal of Geophysical Research-Atmospheres, 121(12), 7383-7414.
DOI:

https://doi.org/10.1002/2016jd025040
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Journal Article
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urn:sha256:c380cceb67fd6fcd15f66c2a3016e15a48fd4dca95ebc5e27c8faec1ba722ce7
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https://repository.library.noaa.gov/view/noaa/21723/noaa_21723_DS1.pdf
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[PDF-2.62 MB]