气候变化领域集成服务门户(CCPortal): Control of both PM2.5 and O3 in Beijing-Tianjin-Hebei and the surrounding areas

CCPortal

DOI	10.1016/j.atmosenv.2020.117259
	Control of both PM2.5 and O3 in Beijing-Tianjin-Hebei and the surrounding areas
	Xiang S.; Liu J.; Tao W.; Yi K.; Xu J.; Hu X.; Liu H.; Wang Y.; Zhang Y.; Yang H.; Hu J.; Wan Y.; Wang X.; Ma J.; Wang X.; Tao S.
发表日期	2020
ISSN	1352-2310
卷号	224
英文摘要	Serious haze pollution (e.g., PM2.5, particulate matter with aerodynamic diameters less than 2.5 μm) and increased ground-level ozone are severe air quality issues in China. In Beijing-Tianjin-Hebei and the surrounding areas (denoted as BTH&SA), although recently the particulate matter pollution appeared to be under control due to stringent pollution mitigation measures, ozone pollution rebounded rapidly, especially during summers. Thus, the exploration of strategies for efficiently lowering both ground-level ozone and PM2.5 concentrations is urgently needed. In this study, we target on the precursors contributing to both ozone and PM2.5 formation (i.e., NOx and volatile organic compounds (VOCs)) and adopt a Combined Empirical Kinetics Modeling Approach (CEKMA) to synthetically evaluate the cost-effective mitigation strategies for air quality control. We find that over the BTH&SA region, the choice of mitigation strategy in the initial stage (e.g., within 20% reductions on NOx or VOCs emissions) is critical because NOx-focused strategies may exacerbate O3 pollution. In addition, equally reducing NOx and VOCs emissions may have the least benefit for air pollution improvement. From a long-term perspective, we suggest reducing VOCs emissions by ~60% and NOx emissions by ~20% in the first stage, thereby avoiding the potential increase in ambient O3. Then in the second stage, the remaining VOCs and NOx emissions should be phased out to reach a deep mitigation of PM2.5 and O3. With those steps, both PM2.5 and ozone can be mitigated efficiently over the BTH&SA region. © 2020 Elsevier Ltd
关键词	Co-mitigation Empirical kinetics modeling Mitigation pathway Ozone Particulate matter
语种	英语
scopus关键词	Air quality; Cost effectiveness; Nitrogen oxides; Ozone; Particles (particulate matter); Pollution control; Volatile organic compounds; Aerodynamic diameters; Empirical kinetics model; Long-term perspective; Mitigation pathway; Particulate Matter; Particulate matter pollution; PM2.5 concentration; Pollution mitigation; Quality control; ozone; volatile organic compound; aerodynamics; air quality; atmospheric pollution; concentration (composition); empirical analysis; haze; mitigation; nitrous oxide; ozone; particle size; particulate matter; reaction kinetics; strategic approach; volatile organic compound; air pollution; air quality; air quality control; Article; atmosphere; China; haze; human; industrialization; kinetics; model; particulate matter; priority journal; seasonal variation; summer; urbanization; Beijing [China]; China; Hebei; Tianjin
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/249328
作者单位	Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China; Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, 55128, Germany; Institute of Science and Technology, China Three Gorges Corporation, Beijing, 100038, China
推荐引用方式 GB/T 7714	Xiang S.,Liu J.,Tao W.,et al. Control of both PM2.5 and O3 in Beijing-Tianjin-Hebei and the surrounding areas[J],2020,224.
APA	Xiang S..,Liu J..,Tao W..,Yi K..,Xu J..,...&Tao S..(2020).Control of both PM2.5 and O3 in Beijing-Tianjin-Hebei and the surrounding areas.ATMOSPHERIC ENVIRONMENT,224.
MLA	Xiang S.,et al."Control of both PM2.5 and O3 in Beijing-Tianjin-Hebei and the surrounding areas".ATMOSPHERIC ENVIRONMENT 224(2020).