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Huan Jing Ke Xue

Title:		[Pollution Characteristics and Sensitivity Analysis of Atmospheric Ozone in Taian City]
Author(s):		Li K; Liu M; Mei RB;
Address:		"Monitoring Center for Ecological Environment of Taian, Taian 271000, China"
Journal Title:		Huan Jing Ke Xue
Year:		2020
Volume:		41
Issue:		8
Page Number:		3539 - 3546
DOI:		10.13227/j.hjkx.201912046
ISSN/ISBN:		0250-3301 (Print) 0250-3301 (Linking)
Abstract:		"Online monitoring of ozone (O(3)) and its precursors was carried out at urban stations in Taian City from May to July, 2018. The pollution characteristics of O(3) and its precursors and the sensitivity of O(3) generation to its precursors were also analyzed based on the characteristic ratio method and a photochemical model. The results indicated that Taian City was suffering from serious O(3) pollution during the observation period. The daily variation of the O(3) concentration exhibited an obvious convex trend with the highest value at approximately 15:00, whereas the concentrations of nitrogen oxide (NO(x)) and VOCs had decreasing trends during the daytime and increasing trends during the night. It was concluded from the results of the characteristic ratio methods (OPE, VOCs/NO(x), and H(2)O(2)/NO(z)) and the empirical kinetics modeling approach (EKMA) curve method that the photochemical generation of O(3) in Taian was controlled by the NO(x) concentration and the transition area, which means that reducing the emissions of NO(x) and VOCs has a controlling effect on O(3) pollution. Additionally, the results of the EKMA curve method also showed that the best effect of O(3) concentration control could be achieved by reducing the concentration of O(3) precursors, and reducing the concentrations of VOCs (propylene equivalent, PE) and NO(x) according to a PE:NO(x) concentration ratio of 8:3"
Keywords:		*Air Pollutants/analysis *Air Pollution Cities Environmental Monitoring Hydrogen Peroxide *Ozone/analysis *Volatile Organic Compounds/analysis Taian City empirical kinetics modeling approach(EKMA) nitrogen oxide(NOx) ozone(O3) ratios method volatile organ;
Notes:		"MedlineLi, Kai Liu, Min Mei, Ru-Bo chi China 2020/10/31 Huan Jing Ke Xue. 2020 Aug 8; 41(8):3539-3546. doi: 10.13227/j.hjkx.201912046"