Mitigation of PM<sub>2.5</sub> and ozone pollution in Delhi:  a sensitivity study during the pre-monsoon period

Chen, Ying; Wild, Oliver; Ryan, Edmund; Sahu, Saroj Kumar; Lowe, Douglas; Archer-Nicholls, Scott; Wang, Yu; McFiggans, Gordon; Ansari, Tabish; Singh, Vikas; Sokhi, Ranjeet S.; Archibald, Alex; Beig, Gufran

doi:https://doi.org/10.5194/acp-20-499-2020

Articles | Volume 20, issue 1

https://doi.org/10.5194/acp-20-499-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-20-499-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 1

Research article

|

14 Jan 2020

Research article |

| 14 Jan 2020

Mitigation of PM_2.5 and ozone pollution in Delhi: a sensitivity study during the pre-monsoon period

Ying Chen, Oliver Wild, Edmund Ryan, Saroj Kumar Sahu, Douglas Lowe, Scott Archer-Nicholls, Yu Wang, Gordon McFiggans, Tabish Ansari, Vikas Singh, Ranjeet S. Sokhi, Alex Archibald, and Gufran Beig

Supplement

https://doi.org/10.5194/acp-20-499-2020-supplement

Data sets

The Fire INventory from NCAR (FINN): a high resolution global model to estimate the emissions from open burning C. Wiedinmyer, S. K. Akagi, R. J. Yokelson, L. K. Emmons, J. A. Al-Saadi, J. J. Orlando, and A. J. Soja https://doi.org/10.5194/gmd-4-625-2011

ECMWF interim re-analysis dataset ECMWF http://apps.ecmwf.int/datasets/data/interim-full-daily

WRF-Chem emission tool D. Lowe https://github.com/douglowe/WRF_UoM_EMIT/releases/tag/v1.0

WRF-Chem emission tool for the PROMOTE project of Delhi air quality D. Lowe https://github.com/douglowe/PROMOTE-emissions/releases/tag/v1.0

NCEP sea surface temperature NCEP SST https://polar.ncep.noaa.gov/sst/

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Short summary

PM_2.5 and O₃ are two major air pollutants. Some mitigation strategies focusing on reducing PM_2.5 may lead to substantial increase in O₃. We use statistical emulation combined with atmospheric transport model to perform thousands of sensitivity numerical studies to identify the major sources of PM_2.5 and O₃ and to develop strategies targeted at both pollutants. Our scientific evidence suggests that regional coordinated emission control is required to mitigate PM_2.5 whilst preventing O₃ increase.

Mitigation of PM2.5 and ozone pollution in Delhi: a sensitivity study during the pre-monsoon period

Supplement

Data sets

Mitigation of PM_2.5 and ozone pollution in Delhi: a sensitivity study during the pre-monsoon period