Articles | Volume 21, issue 14
https://doi.org/10.5194/acp-21-10881-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-21-10881-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
20 Jul 2021
Research article |
| 20 Jul 2021
| 20 Jul 2021
Seasonal distribution and drivers of surface fine particulate matter and organic aerosol over the Indo-Gangetic Plain
School of GeoSciences, University of Edinburgh, Edinburgh, UK
Paul I. Palmer
School of GeoSciences, University of Edinburgh, Edinburgh, UK
National Centre for Earth Observation, University of Edinburgh, Edinburgh, UK
Christoph Knote
Model-Based Environmental Exposure Science (MBEES), Faculty of Medicine, University of Augsburg, Augsburg, Germany
School of GeoSciences, University of Edinburgh, Edinburgh, UK
Timothy J. Wallington
Research & Advanced Engineering, Ford Motor Company, Dearborn, MI 48121-2053, USA
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Latest update: 08 Sep 2026
Short summary
We use a 3-D atmospheric chemistry model to investigate how seasonal emissions sources and meteorological conditions affect the surface distribution of fine particulate matter (PM2.5) and organic aerosol (OA) over the Indo-Gangetic Plain. We find that all seasonal mean values of PM2.5 still exceed safe air quality levels, with human emissions contributing to PM2.5 all year round, open fires during post- and pre-monsoon, and biogenic emissions during monsoon. OA contributes up to 30 % to PM2.5.
We use a 3-D atmospheric chemistry model to investigate how seasonal emissions sources and...
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