Reactive organic carbon air emissions from mobile sources in the United States

Murphy, Benjamin N.; Sonntag, Darrell; Seltzer, Karl M.; Pye, Havala O. T.; Allen, Christine; Murray, Evan; Toro, Claudia; Gentner, Drew R.; Huang, Cheng; Jathar, Shantanu; Li, Li; May, Andrew A.; Robinson, Allen L.

doi:https://doi.org/10.5194/acp-23-13469-2023

Articles | Volume 23, issue 20

https://doi.org/10.5194/acp-23-13469-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-23-13469-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 20

Research article

|

25 Oct 2023

Research article |

| 25 Oct 2023

Reactive organic carbon air emissions from mobile sources in the United States

Benjamin N. Murphy, Darrell Sonntag, Karl M. Seltzer, Havala O. T. Pye, Christine Allen, Evan Murray, Claudia Toro, Drew R. Gentner, Cheng Huang, Shantanu Jathar, Li Li, Andrew A. May, and Allen L. Robinson

Supplement

https://doi.org/10.5194/acp-23-13469-2023-supplement

Data sets

Speciatev5.1 U.S. EPA https://www.epa.gov/air-emissions-modeling/speciate

Data to support Reactive organic carbon air emissions from mobile sources in the United States Benjamin N. Murphy https://doi.org/10.23719/1529789

Model code and software

Model Code for Reactive Organic Carbon Air Emissions from Mobile Sources in the United States Benjamin Murphy and Havala O. T. Pye https://doi.org/10.5281/zenodo.7869142

Motor vehicle emission simulator: Moves3 U.S. EPA https://www.epa.gov/moves

Data for the Community Regional Atmospheric Chemistry Multiphase Mechanism (CRACMM) version 1.0 Havala O. T. Pye https://doi.org/10.23719/1527956

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Short summary

We update methods for calculating organic particle and vapor emissions from mobile sources in the USA. Conventionally, particulate matter (PM) and volatile organic carbon (VOC) are speciated without consideration of primary semivolatile emissions. Our methods integrate state-of-the-science speciation profiles and correct for common artifacts when sampling emissions in a laboratory. We quantify impacts of the emission updates on ambient pollution with the Community Multiscale Air Quality model.