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Characterizing population exposure to coal emissions sources in the United States using the HyADS model.
Henneman, Lucas R F; Choirat, Christine; Ivey, Cesunica; Cummiskey, Kevin; Zigler, Corwin M.
Afiliação
  • Henneman LRF; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA.
  • Choirat C; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA.
  • Ivey C; University of California Riverside, Riverside, CA.
  • Cummiskey K; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA.
  • Zigler CM; Department of Statistics and Data Sciences and Department of Women's Health, University of Texas at Austin and Dell Medical School, Austin, TX.
Atmos Environ (1994) ; 203: 271-280, 2019 Apr 15.
Article em En | MEDLINE | ID: mdl-31749659
In anticipation of the expanding appreciation for air quality models in health outcomes studies, we develop and evaluate a reduced-complexity model for pollution transport that intentionally sacrifices some of the sophistication of full-scale chemical transport models in order to support applicability to a wider range of health studies. Specifically, we introduce the HYSPLIT average dispersion model, HyADS, which combines the HYSPLIT trajectory dispersion model with modern advances in parallel computing to estimate ZIP code level exposure to emissions from individual coal-powered electricity generating units in the United States. Importantly, the method is not designed to reproduce ambient concentrations of any particular air pollutant; rather, the primary goal is to characterize each ZIP code's exposure to these coal power plants specifically. We show adequate performance towards this goal against observed annual average air pollutant concentrations (nationwide Pearson correlations of 0.88 and 0.73 with SO 4 2 - and PM2.5, respectively) and coal-combustion impacts simulated with a full-scale chemical transport model and adjusted to observations using a hybrid direct sensitivities approach (correlation of 0.90). We proceed to provide multiple examples of HyADS's single-source applicability, including to show that 22% of the population-weighted coal exposure comes from 30 coal-powered electricity generating units.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Atmos Environ (1994) Ano de publicação: 2019 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Atmos Environ (1994) Ano de publicação: 2019 Tipo de documento: Article