Xu, J., Silver, B., Tang, R. et al. (4 more authors) (2025) A model assessment of the relationship between urban greening and ozone air quality in China: a study of three metropolitan regions. npj Climate and Atmospheric Science, 8. 184. ISSN: 2397-3722
Abstract
The impact of biogenic emissions on ozone (O3) has significant implications for air quality management. We analyze biogenic volatile organic compound (BVOC) emissions resulting from urban greening in three major Chinese cities, and impacts on tropospheric ozone. Urban greening BVOCs contributed 1.9 ppb (2.5%), 1.9 ppb (3.3%), and 3.6 ppb (5.9%) to O3 formation in Beijing, Shanghai, and Guangzhou, respectively. Temperature-driven enhancement in urban BVOCs produces significantly enhanced O3 on hot days. Guangzhou shows the highest summer temperatures, and the impact of the BVOC isoprene on O3 is more significant. The urban BVOC contribution to O3 is concentrated downwind of each city, due to transport processes. Estimated O3-related mortality in the cities was 900–2000 people during summertime, with 6–14% of the O3-related deaths attributable to urban BVOC emissions. The potential contribution of urban isoprene-emitting vegetation to air quality should be considered alongside the potential benefits of urban greening in future policy-making decisions.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Author(s) 2025. This is an open access article under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) |
Funding Information: | Funder Grant number NERC (Natural Environment Research Council) NE/S006680/1 |
Date Deposited: | 02 Oct 2025 11:33 |
Last Modified: | 02 Oct 2025 11:33 |
Status: | Published online |
Publisher: | Nature Research |
Identification Number: | 10.1038/s41612-025-01054-4 |
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Sustainable Development Goals: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:232131 |