Increases in surface ozone pollution in China from 2013 to 2019: anthropogenic and meteorological influences

Li, Ke; Jacob, Daniel J.; Shen, Lu; Lu, Xiao; De Smedt, Isabelle; Liao, Hong

doi:https://doi.org/10.5194/acp-20-11423-2020

Articles | Volume 20, issue 19

https://doi.org/10.5194/acp-20-11423-2020

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

https://doi.org/10.5194/acp-20-11423-2020

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

Articles | Volume 20, issue 19

Research article

|

06 Oct 2020

Research article |

| 06 Oct 2020

Increases in surface ozone pollution in China from 2013 to 2019: anthropogenic and meteorological influences

Ke Li, Daniel J. Jacob, Lu Shen, Xiao Lu, Isabelle De Smedt, and Hong Liao

Supplement

https://doi.org/10.5194/acp-20-11423-2020-supplement

Data sets

Replication Data for: 2013–2019 increases of surface ozone pollution in China: anthropogenic and meteorological influences K. Li https://doi.org/10.7910/DVN/T6D7YY

Modern-Era Retrospective analysis for Research and Applications, Version 2 GMAO http://geoschemdata.computecanada.ca/ExtData/GEOS_0.5x0.625_AS/MERRA2

The QA4ECV L3 OMI satellite data for NO2 and HCHO QA4ECV team http://www.qa4ecv.eu/ecvs

Historical air quality data in China X. L. Wang https://quotsoft.net/air

The TROPOMI satellite L2 HCHO data TROPOMI team https://s5phub.copernicus.eu/dhus

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Short summary

Surface summer ozone increased in China from 2013 to 2019 despite new governmental efforts targeting ozone pollution. We find that the ozone increase is mostly due to anthropogenic drivers, although meteorology also plays a role. Further analysis for the North China Plain shows that PM_2.5 continued to decrease through 2019, while emissions of volatile organic compounds (VOCs) stayed flat. This could explain the anthropogenic increase in ozone, as PM_2.5 scavenges the radical precursors of ozone.