April 17, 2025
Journal Article
Chemical Evolution of Biomass Burning Aerosols Across Wildfire Plumes in the Western U.S.: From Near-Source to Regional Scales
Abstract
The current understanding of the atmospheric processing of biomass burning organic aerosol (BBOA) and its implications for tropospheric aerosol physicochemical properties remains uncertain. To address this gap, we investigate the transformation of BBOA from wildfire events in the western U.S. Using soot particle aerosol mass spectrometers aboard the DOE G-1 aircraft and deployed at the Mt. Bachelor Observatory (~ 2800m a.s.l.) during summer seasons, we analyze the dynamic changes in submicron particulate matter (PM1) concentrations and chemical profiles within wildfire plumes that have undergone varying amounts of aging, ranging from fresh emissions (Published: April 17, 2025