Impact of regional Northern Hemisphere mid-latitude anthropogenic sulfur dioxide emissions on local and remote tropospheric oxidants

Westervelt, Daniel M.; Fiore, Arlene M.; Baublitz, Colleen B.; Correa, Gustavo

doi:https://doi.org/10.5194/acp-21-6799-2021

Articles | Volume 21, issue 9

https://doi.org/10.5194/acp-21-6799-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-21-6799-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 9

Research article

|

05 May 2021

Research article |

| 05 May 2021

Impact of regional Northern Hemisphere mid-latitude anthropogenic sulfur dioxide emissions on local and remote tropospheric oxidants

Daniel M. Westervelt, Arlene M. Fiore, Colleen B. Baublitz, and Gustavo Correa

Supplement

https://doi.org/10.5194/acp-21-6799-2021-supplement

Data sets

Concentration data for aerosol impact on oxidants D. Westervelt https://doi.org/10.6084/m9.figshare.13331066.v1

Model code and software

Atmospheric Model 3 Geophysical Fluid Dynamics Lab https://www.gfdl.noaa.gov/am3/

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Short summary

Particulate air pollution in the atmosphere can impact the availability of gas-phase chemical constituents, which can then have feedbacks on gas-phase air pollutants. We use a chemistry–climate computer model to simulate the impact of particulate pollution from three major world regions on gas-phase chemical constituents. We find that surface-level ozone air pollution decreases by up to 5 ppbv over China in response to Chinese particulate air pollution, which has implications for policy.