Articles | Volume 23, issue 23
https://doi.org/10.5194/acp-23-15057-2023
https://doi.org/10.5194/acp-23-15057-2023
Research article
 | 
07 Dec 2023
Research article |  | 07 Dec 2023

Impacts of maritime shipping on air pollution along the US East Coast

Maryam Golbazi and Cristina Archer

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Cited articles

Aksoyoglu, S., Baltensperger, U., and Prévôt, A. S. H.: Contribution of ship emissions to the concentration and deposition of air pollutants in Europe, Atmos. Chem. Phys., 16, 1895–1906, https://doi.org/10.5194/acp-16-1895-2016, 2016. a
Ancell, B. C., Bogusz, A., Lauridsen, M. J., and Nauert, C. J.: Seeding Chaos: The Dire Consequences of Numerical Noise in NWP Perturbation Experiments, B. Am. Meteorol. Soc., 99, 615–628, https://doi.org/10.1175/BAMS-D-17-0129.1, 2018. a
Archer, C. L., Colle, B. A., Veron, D. L., Veron, F., and Sienkiewicz, M. J.: On the predominance of unstable atmospheric conditions in the marine boundary layer offshore of the US northeastern coast, J. Geophys. Res.-Atmos., 121, 8869–8885, 2016. a
Archer, C. L., Cervone, G., Golbazi, M., Al Fahel, N., and Hultquist, C.: Changes in air quality and human mobility in the USA during the COVID-19 pandemic, Bull. Atmos. Sci. Technol., 1, 491–514, 2020. a
Arya, S. P.: Air pollution meteorology and dispersion, Oxford University Press, New York, ISBN 0195073983, 1999. a
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We use scientific models to study the impact of ship emissions on air quality along the US East Coast. We find an increase in three major pollutants (PM2.5, NO2, and SO2) in coastal regions. However, we detect a reduction in ozone (O3) levels in major coastal cities. This reduction is linked to the significant emissions of nitrogen oxides (NOx) from ships, which scavenged O3, especially in highly polluted urban areas experiencing an NOx-limited regime. 
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