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Bret A. Schichtel
Researcher at National Park Service
Publications - 124
Citations - 5003
Bret A. Schichtel is an academic researcher from National Park Service. The author has contributed to research in topics: Aerosol & Reactive nitrogen. The author has an hindex of 32, co-authored 116 publications receiving 4363 citations. Previous affiliations of Bret A. Schichtel include Colorado State University & Cooperative Institute for Research in the Atmosphere.
Papers
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Spatial and monthly trends in speciated fine particle concentration in the United States
TL;DR: In this paper, the authors report on fine aerosol data collected in the year 2001 at 143 sites, and the major fine (dp < 2.5 μm) particle aerosol species, sulfates, nitrates, organics, light absorbing carbon, and wind-blown dust, and coarse gravimetric mass are monitored.
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Revised Algorithm for Estimating Light Extinction from IMPROVE Particle Speciation Data
TL;DR: A revised algorithm was developed that is more consistent with the recent atmospheric aerosol literature and reduces bias for high and low light extinction extremes and reduces the underprediction of high haze periods and the overpredictions of low haze periods compared with the performance of the original algorithm.
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Chemical and physical transformations of organic aerosol from the photo-oxidation of open biomass burning emissions in an environmental chamber
Christopher J. Hennigan,Marissa A. Miracolo,G. J. Engelhart,Andrew A. May,Albert A. Presto,Taehyoung Lee,Amy P. Sullivan,Gavin R. McMeeking,Gavin R. McMeeking,Hugh Coe,Cyle Wold,WeiMin Hao,Jessica B. Gilman,Jessica B. Gilman,William C. Kuster,William C. Kuster,J. A. de Gouw,J. A. de Gouw,Bret A. Schichtel,Jeffrey L. Collett,Sonia M. Kreidenweis,Allen L. Robinson +21 more
TL;DR: In this paper, the chemical and physical transformations of organic aerosol (OA) during photo-oxidation of open biomass burning emissions were investigated in the US Forest Service Fire Science Laboratory as part of the third Fire Lab at Missoula Experiment (FLAME III).
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Increasing importance of deposition of reduced nitrogen in the United States
Yi Li,Bret A. Schichtel,John T. Walker,Donna B. Schwede,Xi Chen,Christopher M. B. Lehmann,Melissa A. Puchalski,Jeffrey L. Collett +7 more
TL;DR: It is demonstrated that deposition of reactive nitrogen in the United States has shifted from a nitrate-dominated to an ammonium-dominated condition, and future progress toward reducing US nitrogen deposition will be increasingly difficult without a reduction in ammonia emissions.
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Seasonal composition of remote and urban fine particulate matter in the United States
TL;DR: In this paper, the authors examined the 2005-2008 monthly and annual mean mass concentrations of PM2.5 ammonium sulfate (AS), ammonium nitrate (AN), particulate organic matter (POM), light absorbing carbon (LAC), mineral soil, and sea salt from 168 rural and 176 urban sites.