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@ARTICLE{Rickly:943332,
      author       = {Rickly, Pamela S. and Coggon, Matthew M. and Aikin, Kenneth
                      C. and Alvarez, Raul J. and Baidar, Sunil and Gilman,
                      Jessica B. and Gkatzelis, Georgios and Harkins, Colin and
                      He, Jian and Lamplugh, Aaron and Langford, Andrew O. and
                      McDonald, Brian C. and Peischl, Jeff and Robinson, Michael
                      A. and Rollins, Andrew W. and Schwantes, Rebecca H. and
                      Senff, Christoph J. and Warneke, Carsten and Brown, Steven
                      S.},
      title        = {{I}nfluence of {W}ildfire on {U}rban {O}zone: {A}n
                      {O}bservationally {C}onstrained {B}ox {M}odeling {S}tudy at
                      a {S}ite in the {C}olorado {F}ront {R}ange},
      journal      = {Environmental science $\&$ technology},
      volume       = {57},
      number       = {3},
      issn         = {0013-936X},
      address      = {Columbus, Ohio},
      publisher    = {American Chemical Society},
      reportid     = {FZJ-2023-00938},
      pages        = {1257–1267},
      year         = {2023},
      abstract     = {Increasing trends in biomass burning emissions
                      significantly impact air quality in North America. Enhanced
                      mixing ratios of ozone (O3) in urban areas during
                      smoke-impacted periods occur through transport of O3
                      produced within the smoke or through mixing of pyrogenic
                      volatile organic compounds (PVOCs) with urban nitrogen
                      oxides (NOx = NO + NO2) to enhance local O3 production.
                      Here, we analyze a set of detailed chemical measurements,
                      including carbon monoxide (CO), NOx, and speciated volatile
                      organic compounds (VOCs), to evaluate the effects of smoke
                      transported from relatively local and long-range fires on O3
                      measured at a site in Boulder, Colorado, during summer 2020.
                      Relative to the smoke-free period, CO, background O3, OH
                      reactivity, and total VOCs increased during both the local
                      and long-range smoke periods, but NOx mixing ratios remained
                      approximately constant. These observations are consistent
                      with transport of PVOCs (comprised primarily of oxygenates)
                      but not NOx with the smoke and with the influence of O3
                      produced within the smoke upwind of the urban area.
                      Box-model calculations show that local O3 production during
                      all three periods was in the NOx-sensitive regime.
                      Consequently, this locally produced O3 was similar in all
                      three periods and was relatively insensitive to the increase
                      in PVOCs. However, calculated NOx sensitivities show that
                      PVOCs substantially increase O3 production in the transition
                      and NOx-saturated (VOC-sensitive) regimes. These results
                      suggest that (1) O3 produced during smoke transport is the
                      main driver for O3 increases in NOx-sensitive urban areas
                      and (2) smoke may cause an additional increase in local O3
                      production in NOx-saturated (VOC-sensitive) urban areas.
                      Additional detailed VOC and NOx measurements in smoke
                      impacted urban areas are necessary to broadly quantify the
                      effects of wildfire smoke on urban O3 and develop effective
                      mitigation strategies.},
      cin          = {IEK-8},
      ddc          = {333.7},
      cid          = {I:(DE-Juel1)IEK-8-20101013},
      pnm          = {2111 - Air Quality (POF4-211)},
      pid          = {G:(DE-HGF)POF4-2111},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {36607321},
      UT           = {WOS:000941086200001},
      doi          = {10.1021/acs.est.2c06157},
      url          = {https://juser.fz-juelich.de/record/943332},
}