1. Hunan Meteorological Service Center, Changsha 410118, China;
2. College of Water Sciences, Beijing Normal University, Beijing 100875, China;
3. Bejing Municipal Environmental Monitoring Center, Beijing 100048, China;
4. Chinese Research Academy of Environmental Sciences, Beijing 100012, China;
5. National Meteorological Center, Beijing 100081, China
Characteristics of the spatial and temporal distributions of O3, as well as its source apportionments were all analyzed in Beijing and its surrounding areas by applying the numerical model and comprehensive measurements. The results showed that ozone presented obvious spatial and temporal distribution characteristics and higher concentrations mainly concentrated in the month from May to Sep. There were two pollution belts of ozone in Beijing and its surrounding areas. A pollution zone was mainly concentrated in Beijing-Baoding-northern Shanxi regions, the other was mainly concentrated in Beijing-Tianjin-Bohai areas. The calculated averaged ozone contributions of regional transport (horizontal and vertical transport) to Beijing, Tianjin, Shijiazhuang, Taiyuan, Zhengzhou were 63%, 70%, 74%, 60% and 71% respectively during one heavy air episode of ozone from Aug 11th to 14th, 2015. Regional transportation exerted a significant impact to the variations of local ozone.
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