Articles | Volume 22, issue 3
Atmos. Chem. Phys., 22, 2011–2027, 2022
https://doi.org/10.5194/acp-22-2011-2022
Atmos. Chem. Phys., 22, 2011–2027, 2022
https://doi.org/10.5194/acp-22-2011-2022
Research article
11 Feb 2022
Research article | 11 Feb 2022

Source-resolved variability of fine particulate matter and human exposure in an urban area

Pablo Garcia Rivera et al.

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Evaluation of high-resolution predictions of fine particulate matter and its composition in an urban area using PMCAMx-v2.0
Brian T. Dinkelacker, Pablo Garcia Rivera, Ioannis Kioutsioukis, Peter J. Adams, and Spyros N. Pandis
Geosci. Model Dev. Discuss., https://doi.org/10.5194/gmd-2022-145,https://doi.org/10.5194/gmd-2022-145, 2022
Preprint under review for GMD
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Changes in PM2.5 concentrations and their sources in the US from 1990 to 2010
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Subject: Aerosols | Research Activity: Atmospheric Modelling | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
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Cited articles

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Day, M., Pouliot, G., Hunt, S., Baker, K. R., Beardsley, M., Frost, G., Mobley, D., Simon, H., Henderson, B., Yelverton, T., and Rao, V.: Reflecting on progress since the 2005 NARSTO emissions inventory report, J. Air Waste Manage., 69, 1025–1050, 2019. 
Dinkelacker, B. T., Garcia Rivera, P., Kioutsioukis, I., Adams, P., and Pandis, S. N.: Source Code for PMCAMx-v2.0: High-resolution modeling of fine particulate matter in an urban area using PMCAMx-v2.0, Zenodo [code], https://doi.org/10.5281/zenodo.5094477, 2021. 
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Short summary
The contribution of various pollution sources to the variability of fine PM in an urban area was examined using as an example the city of Pittsburgh. Biomass burning aerosol shows the largest variability during the winter with local maxima within the city and in the suburbs. During both periods the largest contributing source to the average PM2.5 is particles from outside the modeling domain. The average population-weighted PM2.5 concentration does not change significantly with resolution.
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