Global and Regional Near-Surface Aerosol Particulate Matter (e.g., PM2.5) using Measurements, Retrievals, and/or Model Simulations I Poster

[13-Dec-2023]
Abstract:  Fine Particulate Matter less than 2.5 micrometers in diameter, also known as PM2.5, is a significant potential danger to human health and an environmental issue of worldwide increasing concern. In the past 20 years, the U.S. has seen significant improvements in air quality, however recent studies suggest that these gains might be lost as emissions from landscape fires become the dominant component of PM2.5 in certain regions, offsetting the decrease in anthropogenic emissions. Furthermore, people living in low and middle income countries are disproportionately burdened with the mortality associated with PM2.5 exceedances. In this session, we welcome presentations that aim at characterizing PM2.5, including speciation and attribution, using various approaches developed over the past two decades, which involve models (e.g., MERRA-2, NAAPS, GEOS-Chem), ground-based or airborne in situ measurements (e.g., DISCOVER-AQ, KORUS-AQ, TRACER-AQ) and/or ground-based, airborne and current/future spaceborne passive and/or active remote sensing (e.g., GOES, MAIA, PACE, EarthCARE, AOS).