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Environ Pollut

Title:		"Ozone pollution in the plate and logistics capital of China: Insight into the formation, source apportionment, and regional transport"
Author(s):		Wang G; Zhu Z; Liu Z; Liu X; Kong F; Nie L; Gao W; Zhao N; Lang J;
Address:		"Department of Environmental and Safety Engineering, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, China. Electronic address: wangg@upc.edu.cn. Department of Environmental and Safety Engineering, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, China. Shandong Provincial Eco-Environment Monitoring Center, Linyi, 276000, China. Beijing Municipal Research Institute of Eco-Environmental Protection, Beijing, 100037, China. State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China. Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China. Key Laboratory of Beijing on Regional Air Pollution Control, Beijing University of Technology, Beijing, 100124, China"
Journal Title:		Environ Pollut
Year:		2022
Volume:		20220912
Issue:
Page Number:		120144 -
DOI:		10.1016/j.envpol.2022.120144
ISSN/ISBN:		1873-6424 (Electronic) 0269-7491 (Linking)
Abstract:		"As the logistics and plate capital of China, the sources and regional transport of O(3) in Linyi are different from those in other cities because of the significant differences in industrial structure and geographical location. Twenty-five ozone pollution episodes (OPEs, 52 days) were identified in 2021, with a daily maximum 8-h moving average O(3) concentration (O(3-MDA8)) of 184.5 +/- 22.5 mug/m(3). Oxygenated volatile organic compounds (OVOCs) and aromatics were the dominant contributors to ozone formation potential (OFP), with contributions of approximately 23.5-52.7% and 20.0-40.8%, respectively, followed by alkenes, alkanes, and alkynes. Formaldehyde, an OVOC with high concentrations emitted from the plate industry and vehicles, contributed the most to OFP (22.7 +/- 5.5%), although formaldehyde concentrations only accounted for 9.4 +/- 2.7% of the total non-methane hydrocarbon (NMHC) concentrations. The source apportionment results indicated that the plate industry was the dominant O(3) contributor (27.0%), followed by other sources (21.6%), vehicle-related sources (18.0%), solvent use (16.9%), liquefied petroleum gas (LPG)/natural gas (NG) (8.8%), and combustion sources (7.7%). Therefore, there is an urgent need to control the plating industry in Linyi to mitigate O(3) pollution. The backward trajectory, potential source contribution function (PSCF), and concentration weighted trajectory (CWT) models were used to identify the air mass pathways and potential source areas of air pollutants during the OPEs. O(3) pollution was predominantly affected by air masses that originated from eastern and local regions, while trajectories from the south contained the highest O(3) concentrations (207.0 mug/m(3)). The potential source area was from east and south Linyi during the OPEs. Therefore, it is critical to implement regional joint prevention and control measures to lower O(3) concentrations"
Keywords:		*Air Pollutants/analysis Alkanes/analysis Alkenes Alkynes China Environmental Monitoring/methods Formaldehyde Hydrocarbons Natural Gas *Ozone/analysis *Petroleum Solvents *Volatile Organic Compounds/analysis China'S plate and logistics capital Ozone forma;
Notes:		"MedlineWang, Gang Zhu, Zhongyi Liu, Zhonglin Liu, Xiaoyu Kong, Fanhua Nie, Liman Gao, Wenkang Zhao, Na Lang, Jianlei eng England 2022/09/16 Environ Pollut. 2022 Nov 15; 313:120144. doi: 10.1016/j.envpol.2022.120144. Epub 2022 Sep 12"