Source contributions of volatile organic compounds to ozone formation in southeast Texas. Ying, Q. & Krishnan, A. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, AMER GEOPHYSICAL UNION, 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA, SEP 10, 2010.
doi  abstract   bibtex   
A source-oriented SAPRC-99 gas phase photochemical mechanism was incorporated into the Community Multiscale Air Quality (CMAQ) model to determine the contributions of volatile organic compounds (VOCs) to predicted net ozone (O-3) formation rates during the Texas Air Quality Study (TexAQS) from 16 August to 7 September 2000. Contributions from biogenic sources, diesel vehicles, highway gasoline vehicles, off-highway gasoline vehicles, solvent utilization, petroleum industries, other industries and wildfires were determined. Peak column-averaged O-3 formation rate due to industrial sources averaged over this episode was approximately 8.5 ppb hr(-1). Contributions of gasoline vehicles and solvent utilization were large in urban areas to the west of the industrial region with highest column-averaged formation rates of 3.7 and 1.4 ppb hr(-1), respectively. Large regional contributions of biogenic sources to O-3 formation were predicted with highest O-3 formation rate of 11.9 ppb hr(-1) in downwind rural areas. Wildfires could contribute to large O-3 formation but their influence was generally localized. Analysis of 2400 back-trajectories from areas with maximum daily 8-h O-3 greater than 90 ppb showed that industrial sources were the largest anthropogenic sources of VOC that contributed to the these high O-3 events, followed by gasoline vehicle sources. The median of relative contributions from biogenic and anthropogenic sources from this analysis was approximately 60% and 40%, respectively. Analysis of the back-trajectories where 1-h peak O-3 concentrations were greater than 120 ppb showed that the median relative contributions due to anthropogenic sources were increased to over 60%. This suggests that high O-3 events in the HGB region were driven by anthropogenic VOC emissions from industrial sources.
@article{ WOS:000281755600008,
Author = {Ying, Qi and Krishnan, Anupama},
Title = {{Source contributions of volatile organic compounds to ozone formation in
   southeast Texas}},
Journal = {{JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES}},
Year = {{2010}},
Volume = {{115}},
Month = {{SEP 10}},
Abstract = {{A source-oriented SAPRC-99 gas phase photochemical mechanism was
   incorporated into the Community Multiscale Air Quality (CMAQ) model to
   determine the contributions of volatile organic compounds (VOCs) to
   predicted net ozone (O-3) formation rates during the Texas Air Quality
   Study (TexAQS) from 16 August to 7 September 2000. Contributions from
   biogenic sources, diesel vehicles, highway gasoline vehicles,
   off-highway gasoline vehicles, solvent utilization, petroleum
   industries, other industries and wildfires were determined. Peak
   column-averaged O-3 formation rate due to industrial sources averaged
   over this episode was approximately 8.5 ppb hr(-1). Contributions of
   gasoline vehicles and solvent utilization were large in urban areas to
   the west of the industrial region with highest column-averaged formation
   rates of 3.7 and 1.4 ppb hr(-1), respectively. Large regional
   contributions of biogenic sources to O-3 formation were predicted with
   highest O-3 formation rate of 11.9 ppb hr(-1) in downwind rural areas.
   Wildfires could contribute to large O-3 formation but their influence
   was generally localized. Analysis of 2400 back-trajectories from areas
   with maximum daily 8-h O-3 greater than 90 ppb showed that industrial
   sources were the largest anthropogenic sources of VOC that contributed
   to the these high O-3 events, followed by gasoline vehicle sources. The
   median of relative contributions from biogenic and anthropogenic sources
   from this analysis was approximately 60\% and 40\%, respectively.
   Analysis of the back-trajectories where 1-h peak O-3 concentrations were
   greater than 120 ppb showed that the median relative contributions due
   to anthropogenic sources were increased to over 60\%. This suggests that
   high O-3 events in the HGB region were driven by anthropogenic VOC
   emissions from industrial sources.}},
Publisher = {{AMER GEOPHYSICAL UNION}},
Address = {{2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA}},
Type = {{Article}},
Language = {{English}},
Affiliation = {{Ying, Q (Corresponding Author), Texas A\&M Univ, Zachry Dept Civil Engn, College Stn, TX 77843 USA.
   Ying, Qi; Krishnan, Anupama, Texas A\&M Univ, Zachry Dept Civil Engn, College Stn, TX 77843 USA.}},
DOI = {{10.1029/2010JD013931}},
Article-Number = {{D17306}},
ISSN = {{2169-897X}},
Keywords-Plus = {{AIR-QUALITY; VOC REACTIVITY; HOUSTON; MODEL; HYDROCARBONS;
   APPORTIONMENT; SENSITIVITY}},
Research-Areas = {{Meteorology \& Atmospheric Sciences}},
Web-of-Science-Categories  = {{Meteorology \& Atmospheric Sciences}},
Author-Email = {{qying@civil.tamu.edu}},
ResearcherID-Numbers = {{Ying, Qi/D-1985-2012
   }},
ORCID-Numbers = {{Ying, Qi/0000-0002-4560-433X}},
Funding-Acknowledgement = {{Texas Air Research Center (TARC) {[}078ATM2080A]}},
Funding-Text = {{This research is supported by the Texas Air Research Center (TARC) under
   the project 078ATM2080A. The authors thank Mark Estes of the Texas
   Commission of Environmental Quality (TCEQ) for providing updated
   emissions and meteorology inputs and Yosuke Kimura and David Allen of
   the Center for Energy and Environmental Resources at University of Texas
   at Austin for providing the wildfire emissions.}},
Number-of-Cited-References = {{31}},
Times-Cited = {{45}},
Usage-Count-Last-180-days = {{3}},
Usage-Count-Since-2013 = {{48}},
Journal-ISO = {{J. Geophys. Res.-Atmos.}},
Doc-Delivery-Number = {{649GH}},
Unique-ID = {{WOS:000281755600008}},
OA = {{Bronze}},
DA = {{2021-12-02}},
}

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