Abstract:
:Cities play a key role in making carbon emission reduction targets achievable and tackling air pollution. Using Guangzhou city as a case, this paper explored the air quality and health co-benefits of peaking carbon dioxide emissions under three scenarios and developed an integrated assessment framework by combining a local air pollutant emission inventory, an atmospheric chemistry transport model, and a health assessment model. The results showed that SO2, PM10, and PM2.5 could achieve larger emission reductions than NH3, VOCs, and NOx among all the scenarios we examined. Under the enhanced peaking scenario with the most stringent mitigation strategies, Guangzhou could meet the local ambient air quality standard for PM2.5 (34 μg/m3), with the most reduction observed in the annual average PM2.5 concentration (28.4%) and related premature deaths (17.08%), compared with the base year 2015. We also identified hotspot grids, which were areas with high concentrations of carbon emissions, high concentrations of air pollution and poor air quality in Guangzhou. Our analysis highlighted the importance of promoting peaking carbon dioxide emission for the improvement of air quality and public health at the city level.
journal_name
J Environ Managejournal_title
Journal of environmental managementauthors
Wu P,Guo F,Cai B,Wang C,Lv C,Liu H,Huang J,Huang Y,Cao L,Pang L,Gao Jdoi
10.1016/j.jenvman.2020.111796subject
Has Abstractpub_date
2021-01-18 00:00:00pages
111796eissn
0301-4797issn
1095-8630pii
S0301-4797(20)31721-7journal_volume
282pub_type
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