气候变化领域集成服务门户(CCPortal): Investigating the regional contributions to air pollution in Beijing: A dispersion modelling study using CO as a tracer

CCPortal

DOI	10.5194/acp-20-2825-2020
	Investigating the regional contributions to air pollution in Beijing: A dispersion modelling study using CO as a tracer
	Panagi M.; Fleming Z.L.; Monks P.S.; Ashfold M.J.; Wild O.; Hollaway M.; Zhang Q.; Squires F.A.; Vande Hey J.D.
发表日期	2020
ISSN	1680-7316
起始页码	2825
结束页码	2838
卷号	20 期号:5
英文摘要	The rapid urbanization and industrialization of northern China in recent decades has resulted in poor air quality in major cities like Beijing. Transport of air pollution plays a key role in determining the relative influence of local emissions and regional contributions to observed air pollution. In this paper, dispersion modelling (Numerical Atmospheric Modelling Environment, NAME model) is used with emission inventories and in situ ground measurement data to track the pathways of air masses arriving in Beijing. The percentage of time the air masses spent over specific regions during their travel to Beijing is used to assess the effects of regional meteorology on carbon monoxide (CO), a good tracer of anthropogenic emissions. The NAME model is used with the MEIC (Multi-resolution Emission Inventory for China) emission inventories to determine the amount of pollution that is transported to Beijing from the immediate surrounding areas and regions further away. This approach captures the magnitude and variability of CO over Beijing and reveals that CO is strongly driven by transport processes. This study provides a more detailed understanding of relative contributions to air pollution in Beijing under different regional airflow conditions. Approximately 45 % over a 4-year average (2013-2016) of the total CO pollution that affects Beijing is transported from other regions, and about half of this contribution comes from beyond the Hebei and Tianjin regions that immediately surround Beijing. The industrial sector is the dominant emission source from the surrounding regions and contributes over 20 % of the total CO in Beijing. Finally, using PM2.5 to determine high-pollution days, three pollution classification types of pollution were identified and used to analyse the APHH winter campaign and the 4-year period. The results can inform targeted control measures to be implemented by Beijing and the surrounding provinces to tackle air quality problems that affect Beijing and China. © 2020 Copernicus GmbH. All rights reserved.
语种	英语
scopus关键词	air mass; air quality; atmospheric modeling; atmospheric pollution; carbon monoxide; emission inventory; meteorology; tracer; Beijing [Beijing (ADS)]; Beijing [China]; China; Hebei; Tianjin
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/247933
作者单位	National Centre for Atmospheric Science, Department of Chemistry, University of Leicester, Leicester, United Kingdom; Department of Chemistry, University of Leicester, Leicester, United Kingdom; School of Environmental and Geographical Sciences, University of Nottingham Malaysia, Semenyih, Selangor, 43500, Malaysia; Lancaster Environment Centre, Lancaster University, Lancaster, United Kingdom; Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing, China; Department of Chemistry, University of York, York, United Kingdom; School of Physics and Astronomy, Earth Observation Science Group, University of Leicester, Leicester, United Kingdom; Centre for Climate and Resilience Research (CR2), Department of Geophysics, University of Chile, Santiago, Chile; Centre for Ecology and Hydrology, Lancaster Environment Centre, Library Avenue, Bailrigg, Lancaster, United Kingdom
推荐引用方式 GB/T 7714	Panagi M.,Fleming Z.L.,Monks P.S.,et al. Investigating the regional contributions to air pollution in Beijing: A dispersion modelling study using CO as a tracer[J],2020,20(5).
APA	Panagi M..,Fleming Z.L..,Monks P.S..,Ashfold M.J..,Wild O..,...&Vande Hey J.D..(2020).Investigating the regional contributions to air pollution in Beijing: A dispersion modelling study using CO as a tracer.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(5).
MLA	Panagi M.,et al."Investigating the regional contributions to air pollution in Beijing: A dispersion modelling study using CO as a tracer".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.5(2020).