Assessing Model Characterization of Single Source Secondary Pollutant Impacts Using 2013 SENEX Field Study Measurements.

ABSTRACT: Aircraft measurements made downwind from specific coal fired power plants during the 2013 Southeast Nexus field campaign provide a unique opportunity to evaluate single source photochemical model predictions of both O₃ and secondary PM_2.5 species. The model did well at predicting downwind plume placement. The model shows similar patterns of an increasing fraction of PM_2.5 sulfate ion to the sum of SO₂ and PM_2.5 sulfate ion by distance from the source compared with ambient based estimates. The model was less consistent in capturing downwind ambient based trends in conversion of NO_X to NO_Y from these sources. Source sensitivity approaches capture near-source O₃ titration by fresh NO emissions, in particul

SUBMITTER: Baker KR 

PROVIDER: S-EPMC6145072 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature