Variability and reduction of atmospheric pollutants in Beijing and its surrounding area during the Beijing 2008 Olympic Games

• Published in: Chinese science bulletin Vol. 55; no. 18; pp. 1937 - 1944
• Main Authors: Xin, JinYuan, Wang, YueSi, Tang, GuiQian, Wang, LiLi, Sun, Yang, Wang, YingHong, Hu, Bo, Song, Tao, Ji, DongSheng, Wang, WeiFeng, Li, Liang, Liu, GuangRen
• Format: Journal Article
• Language: English
• Published: Heidelberg SP Science China Press 01.06.2010
• Subjects: 2008年北京奥运会; Air pollution; Atmospherics; Chemistry/Food Science; Earth Sciences; Engineering; Humanities and Social Sciences; Life Sciences; Monitoring; multidisciplinary; Networks; Nitrogen dioxide; Olympic Games; Physics; PM2.5; Pollutants; Regional; Science; Science (multidisciplinary); Summer; 二氧化硫; 北京2008年奥运会; 周边地区; 大气污染物; 平均浓度; 环境监测网络; China, People's Rep., Beijing; atmospheric complex pollution; Green Olympics; fine particles; Beijing-Tianjin-Hebei Atmospheric Environment Monitoring Network; ozone
• ISSN: 1001-6538; 1861-9541
• DOI: 10.1007/s11434-010-3216-2

The Beijing-Tianjin-Hebei Atmospheric Environment Monitoring Network was established by the Institute of Atmospheric Phys- ics, Chinese Academy of Sciences. The goals of the network were to monitor and provide warnings of the atmospheric quality in Beijing and its surrounding area during the Beijing 2008 Olympic Games. The results showed that the atmospheric complex pol- lution exhibited high concentrations of ozone and fine particles and oxidation in summer, with a ubiquitous regional source. The regional mean concentrations of SO2, PM2.5, NO2, and O3sh max （the maximum daily 8 h mean） and Ox were 22±11, 90±40, 25±5, 136±35 and 112±21 gg/m3 in summer, respectively. During the Olympic Games, the mean concentration of SO2, PM2.5, NO2, O3_8u max, and Ox were 12.5±4, 56±28, 23±4, 114±29, 95±17 p.g/m3 in the region, respectively, and fell by 51.0%, 43.7%, 13%, 20.2%, and 18.9%, respectively, compared to the prophase mean before the Olympic Games. The concentration of atmospheric pollutants declined significantly and achieved the ＂Green Olympics＂ control goal of air quality. After the Olympic Games, SO2, PM2.5 and NOw increased significantly as the temporary atmospheric pollution control measures were terminated.