| Title: | Volatile Chemical Product Enhancements to Criteria Pollutants in the United States |
| Author(s): | Seltzer KM; Murphy BN; Pennington EA; Allen C; Talgo K; Pye HOT; |
| Address: | "Oak Ridge Institute for Science and Education Postdoctoral Fellow in the Office of Research and Development, U.S. Environmental Protection Agency, 109 TW Alexander Drive, Research Triangle Park, North Carolina 27711, United States. Office of Research and Development, U.S. Environmental Protection Agency, 109 TW Alexander Drive, Research Triangle Park, North Carolina 27711, United States. Department of Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States. General Dynamics Information Technology, Research Triangle Park, North Carolina 27711, United States" |
| ISSN/ISBN: | 1520-5851 (Electronic) 0013-936X (Print) 0013-936X (Linking) |
| Abstract: | "Volatile chemical products (VCPs) are a significant source of reactive organic carbon emissions in the United States with a substantial fraction (>20% by mass) serving as secondary organic aerosol (SOA) precursors. Here, we incorporate a new nationwide VCP inventory into the Community Multiscale Air Quality (CMAQ) model with VCP-specific updates to better model air quality impacts. Model results indicate that VCPs mostly enhance anthropogenic SOA in densely populated areas with population-weighted annual average SOA increasing 15-30% in Southern California and New York City due to VCP emissions (contribution of 0.2-0.5 mug m(-3)). Annually, VCP emissions enhance total population-weighted PM(2.5) by approximately 5% in California, approximately 3% in New York, New Jersey, and Connecticut, and 1-2% in most other states. While the maximum daily 8 h ozone enhancements from VCP emissions are more modest, their influence can cause a several ppb increase on select days in major cities. Printing Inks, Cleaning Products, and Paints and Coatings product use categories contribute approximately 75% to the modeled VCP-derived SOA and Cleaning Products, Paints and Coatings, and Personal Care Products contribute approximately 81% to the modeled VCP-derived ozone. Overall, VCPs enhance multiple criteria pollutants throughout the United States with the largest impacts in urban cores" |
| Keywords: | Aerosols *Air Pollutants/analysis *Environmental Pollutants New York City *Ozone/analysis United States *Volatile Organic Compounds Pm2.5 air quality impacts ozone reactive organic carbon secondary organic aerosol volatile chemical products; |
| Notes: | "MedlineSeltzer, Karl M Murphy, Benjamin N Pennington, Elyse A Allen, Chris Talgo, Kevin Pye, Havala O T eng EPA999999/ImEPA/Intramural EPA/ Research Support, U.S. Gov't, Non-P.H.S. 2021/11/16 Environ Sci Technol. 2022 Jun 7; 56(11):6905-6913. doi: 10.1021/acs.est.1c04298. Epub 2021 Nov 15" |
