Evaluation of PM2.5 decrease in Beijing after emission restrictions in the Beijing-Tianjin-Hebei and surrounding regions

CORC > 北京大学 > 环境科学与工程学院

	Evaluation of PM2.5 decrease in Beijing after emission restrictions in the Beijing-Tianjin-Hebei and surrounding regions
	Liu, Jun ; An, Xing-Qin ; Zhu, Tong ; Zhai, Shi-Xian ; Li, Nan
刊名	zhongguo huanjing kexuechina environmental science
	2014
英文摘要	The models-3 community multiscale air quality (CMAQ) Modeling System was used to simulate PM2.5 concentrations in Beijing with the application of a high-resolution emission inventory for Beijing-Tianjin-Hebei Region in North China Plain. Based on the reanalysis of meteorological data derived from the national centersfor environmental prediction (NCEP) final analysis (FNL), in the autumn and winter of 2011, 2012, and 2013, we have chosen a representative period, October 1st to December 30th of 2012, for baseline simulation. According to the implementing measures for air pollution prevention and control action plans in Beijing-Tianjin-Hebei and surrounding area (hereinafter referred to as the measures) and Emission Source Control Target for the five-year period (2012~2017), we formulated an emission control scenario to evaluate the improvements in air quality with the comparison to baseline simulation. The modeling system well captured the temporal trend of PM2.5 concentrations, with a correlation coefficient of 0.71 and 0.63 betweenmodeled and measured PM2.5 daily average concentrationsat Haidian and Shangdianzi, respectively. After 30~40% reduction of emissions for main pollutants in the Beijing-Tianjin-Hebei Region, PM2.5 average concentrations in Haidian, Shangdianzi, and urban area deceased by (24.9??2.3)%, (20.2??2.7)%, and (24.8??2.1)%, respectively. If the measures were strictly implemented and the meteorological conditions were similar with those in 2012, the goal of reducing PM2.5 annual mean concentration to 60??g/m3 could be reached in 2017.; EI; 0; 11; 2726-2733; 34
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/411349]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Liu, Jun,An, Xing-Qin,Zhu, Tong,et al. Evaluation of PM2.5 decrease in Beijing after emission restrictions in the Beijing-Tianjin-Hebei and surrounding regions[J]. zhongguo huanjing kexuechina environmental science,2014.
APA	Liu, Jun,An, Xing-Qin,Zhu, Tong,Zhai, Shi-Xian,&Li, Nan.(2014).Evaluation of PM2.5 decrease in Beijing after emission restrictions in the Beijing-Tianjin-Hebei and surrounding regions.zhongguo huanjing kexuechina environmental science.
MLA	Liu, Jun,et al."Evaluation of PM2.5 decrease in Beijing after emission restrictions in the Beijing-Tianjin-Hebei and surrounding regions".zhongguo huanjing kexuechina environmental science (2014).