The role of meteorological conditions and pollution control strategies in reducing air pollution in Beijing during APEC 2014 and Victory Parade 2015

doi:10.5194/acp-17-13921-2017

GSTDTAP > 地球科学

DOI	10.5194/acp-17-13921-2017
	The role of meteorological conditions and pollution control strategies in reducing air pollution in Beijing during APEC 2014 and Victory Parade 2015
	Pengfei Liang, Tong Zhu, Yanhua Fang, Yingruo Li, Yiqun Han, Yusheng Wu, Min Hu, and Junxia Wang
	2017-11-23
发表期刊	Atmospheric Chemistry and Physics
出版年	2017
英文摘要	To control severe air pollution in China, comprehensive pollution control strategies have been implemented throughout the country in recent years. To evaluate the effectiveness of these strategies, the influence of meteorological conditions on levels of air pollution needs to be determined. Using the intensive air pollution control strategies implemented during the Asia-Pacific Economic Cooperation Forum in 2014 (APEC 2014) and the 2015 China Victory Day Parade (Victory Parade 2015) as examples, we estimated the role of meteorological conditions and pollution control strategies in reducing air pollution levels in Beijing. Atmospheric particulate matter of aerodynamic diameter  ≤ 2.5 µm (PM_2.5) samples were collected and gaseous pollutants (SO₂, NO, NO_x, and O₃) were measured online at a site in Peking University (PKU). To determine the influence of meteorological conditions on the levels of air pollution, we first compared the air pollutant concentrations during days with stable meteorological conditions. However, there were few days with stable meteorological conditions during the Victory Parade. As such, we were unable to estimate the level of emission reduction efforts during this period. Finally, a generalized linear regression model (GLM) based only on meteorological parameters was built to predict air pollutant concentrations, which could explain more than 70 % of the variation in air pollutant concentration levels, after incorporating the nonlinear relationships between certain meteorological parameters and the concentrations of air pollutants. Evaluation of the GLM performance revealed that the GLM, even based only on meteorological parameters, could be satisfactory to estimate the contribution of meteorological conditions in reducing air pollution and, hence, the contribution of control strategies in reducing air pollution. Using the GLM, we found that the meteorological conditions and pollution control strategies contributed 30 and 28 % to the reduction of the PM_2.5 concentration during APEC and 38 and 25 % during the Victory Parade, respectively, based on the assumption that the concentrations of air pollutants are only determined by meteorological conditions and emission intensities. We also estimated the contribution of meteorological conditions and control strategies in reducing the concentrations of gaseous pollutants and PM_2.5 components with the GLMs, revealing the effective control of anthropogenic emissions.
领域	地球科学
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引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/287859
专题	地球科学
推荐引用方式 GB/T 7714	Pengfei Liang, Tong Zhu, Yanhua Fang, Yingruo Li, Yiqun Han, Yusheng Wu, Min Hu, and Junxia Wang. The role of meteorological conditions and pollution control strategies in reducing air pollution in Beijing during APEC 2014 and Victory Parade 2015[J]. Atmospheric Chemistry and Physics,2017.
APA	Pengfei Liang, Tong Zhu, Yanhua Fang, Yingruo Li, Yiqun Han, Yusheng Wu, Min Hu, and Junxia Wang.(2017).The role of meteorological conditions and pollution control strategies in reducing air pollution in Beijing during APEC 2014 and Victory Parade 2015.Atmospheric Chemistry and Physics.
MLA	Pengfei Liang, Tong Zhu, Yanhua Fang, Yingruo Li, Yiqun Han, Yusheng Wu, Min Hu, and Junxia Wang."The role of meteorological conditions and pollution control strategies in reducing air pollution in Beijing during APEC 2014 and Victory Parade 2015".Atmospheric Chemistry and Physics (2017).