气候变化领域集成服务门户(CCPortal): On the local anthropogenic source diversities and transboundary transport for urban agglomeration ozone mitigation

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DOI	10.1016/j.atmosenv.2020.118005
	On the local anthropogenic source diversities and transboundary transport for urban agglomeration ozone mitigation
	Yan Y.; Zheng H.; Kong S.; Lin J.; Yao L.; Wu F.; Cheng Y.; Niu Z.; Zheng S.; Zeng X.; Yan Q.; Wu J.; Zheng M.; Liu M.; Ni R.; Chen L.; Chen N.; Xu K.; Liu D.; Zhao D.; Zhao T.; Qi S.
发表日期	2021
ISSN	1352-2310
卷号	245
英文摘要	Mitigation of ozone in urban agglomerations of developing countries remains challenging, due partly to inadequate knowledge of the relative importance of local sources versus transboundary transport, aggravated by lack of synchronous measurements of ozone and precursors. Here we investigate the spatial-temporal characteristics of ozone and its precursors measured synchronously at five cities of Wuhan City Cluster (WCC) in Central China during the high-ozone months of May–June 2018, facilitated by multiple models of different complexities. We find substantial cross-city diversities in the measured maximum daily averaged 8-h (MDA8) ozone, nitrogen oxides (NOx = NO + NO2), volatile organic compounds (VOCs), VOCs/NOx ratios, and ozone formation potentials of VOCs, which are tied to distinctive local emission sources. GEOS-Chem simulations suggest that local anthropogenic emissions contribute 26.8–29.5% of ozone in each city averaged over May–June 2018, with higher values during ozone episodes (up to 32.0%). Transboundary transport from non-WCC Asian regions (18.5–19.2%) contributes much more than cross-city transport within WCC (2.5–3.1%) to ozone concentrations in the five cities. The contributions of background ozone from non-Asian anthropogenic emissions and global natural sources reach 48.9–51.6%. Thus local mitigation actions alone can substantially reduce city-level ozone; whereas the majority of ozone must be mitigated by country-wide or worldwide collaborations. Collaborations within an urban agglomeration alone may not effectively mitigate ozone. © 2020 Elsevier Ltd
关键词	Local source diversities Ozone mitigation Ozone modeling Transboundary transport Urban agglomeration pollution
语种	英语
scopus关键词	Agglomeration; Developing countries; Nitrogen oxides; Urban transportation; Volatile organic compounds; Anthropogenic emissions; Anthropogenic sources; Ozone and its precursors; Ozone concentration; Ozone formation potentials; Spatial-temporal characteristics; Synchronous measurements; Urban agglomerations; Ozone; nitrogen dioxide; nitrogen oxide; ozone; volatile organic compound; anthropogenic source; concentration (composition); nitrogen oxides; ozone; pollutant source; spatiotemporal analysis; transboundary pollution; urban area; Article; Asia; China; priority journal; spatiotemporal analysis; urban area; China; Hubei; Wuhan
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248759
作者单位	Department of Atmospheric Science, School of Environmental Sciences, China University of Geosciences, Wuhan, 430074, China; Department of Environmental Science and Technology, School of Environmental Sciences, China University of Geosciences, Wuhan, 430074, China; Laboratory for Climate and Ocean-Atmosphere Studies, Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing, 100871, China; Hubei Environmental Monitoring Centre, Wuhan, 430072, China; Department of Atmospheric Sciences, School of Earth Sciences, Zhejiang University, Hangzhou, Zhejiang, China; Beijing Weather Modification Office, Beijing, 100089, China; School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing, 210044, China
推荐引用方式 GB/T 7714	Yan Y.,Zheng H.,Kong S.,et al. On the local anthropogenic source diversities and transboundary transport for urban agglomeration ozone mitigation[J],2021,245.
APA	Yan Y..,Zheng H..,Kong S..,Lin J..,Yao L..,...&Qi S..(2021).On the local anthropogenic source diversities and transboundary transport for urban agglomeration ozone mitigation.ATMOSPHERIC ENVIRONMENT,245.
MLA	Yan Y.,et al."On the local anthropogenic source diversities and transboundary transport for urban agglomeration ozone mitigation".ATMOSPHERIC ENVIRONMENT 245(2021).