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Quantifying Primary and Secondary Ultrafine Particle Sources in the United States with CMAQ-UF
Citation:
Murphy, B., F. Binkowski, E. Winijkul, AND M. Alvarado. Quantifying Primary and Secondary Ultrafine Particle Sources in the United States with CMAQ-UF. 2019 Community Modeling and Analysis System Conference, Chapel Hill, North Carolina, October 21 - 23, 2019.
Impact/Purpose:
The new model described in this abstract will be able to better predict the exposure of US citizens to ultrafine particles in their communities both from direct and indirect particle emissions.
Description:
This presentation documents the development and evaluation of ultrafine particle algorithms in CMAQ. It brings together two parallel lines of work: primary aerosol size distribution characterization and secondary particle generation via nucleation of condensable vapors. We also undertake an extensive measurement evaluation of the model's predictions in urban and rural sites to better understand variability in model performance and help interpret air quality drivers in these locations.