Abstract:Surface O3 and other pollutants were observed from June, 2008 to May, 2009 simultaneously at the compound of China Meteorological Administration (CMA) in Beijing urban area, Shangdianzi background station (SDZ) northeast of Beijing, and Gucheng station (GCH) southwest of Beijing. The observational data are used to study the variation characteristics of surface O3 and the relationships between O3 concentration and other pollutants concentrations as well as meteorological parameters. The results show that surface O3 at SDZ has clear seasonal and diurnal cycles, which are obviously different from those at other two stations, while the seasonal and diurnal cycles at GCH and CMA are similar. O3 is negatively correlated with NO、NO2、NOx、RH, and the correlations in winter are more significant than in summer. In addition, air temperature and wind speed are positively correlated with O3, and the correlation coefficient between wind speed and O3 at CMA changes very much from winter to summer. The O3 concentrations show some dependence on the local wind direction at the sites, with higher O3 concentration being observed under southerly winds and lower O3 concentration under northeasterly winds.
刘希文, 徐晓斌, 林伟立. 北京及周边地区典型站点近地面O3的变化特征[J]. 中国环境科学, 2010, 30(7): 946-953.
LIU Xi-Wen, XU Xiao-Bin, LIN Wei-Li. Variation characteristics of surface O3 in Beijing and its surrounding area. CHINA ENVIRONMENTAL SCIENCECE, 2010, 30(7): 946-953.