title: [Characteristics and impact factors of O3 concentrations in mountain background region of East China].
abstract: The O3 concentrations were measured online from March 2011 to February 2012 at the national atmospheric background monitoring station in Wuyishan of Fujian Province to discuss the characteristic of O3 concentrations and the impact factors in forest and mountain background region of East China. HYSPLIT (Hybrid Single Particle Lagrangian Integrated Trajectory) Model was used to investigate the potential sources of particulates during the pollution episodes. The results showed that the background concentration of O3 was (87.9 +/- 34.1) microg x m(-3). Seasonal variations of O3 loadings were observed, and the loadings decreased in the order spring > autumn > summer > winter. Analysis of correlation between O3 and other gas pollutants suggested regional transportation, stratospheric injection and photochemical production were the major sources of O3 in Wuyishan background station. The episodes were related with transportations of air parcel from Yangtze River Delta region, Pearl River Delta region and the high altitudes.
authors.affiliation: Atmospheric Background Monitoring Station, Wuyishan of Fujian Province, Wuyishan 354302, China. binwys@163.com
authors.forename: Bin-Bin
authors.initials: BB
authors.lastname: Su
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D001272:Atmosphere / Q000032:analysis; D002681:China; D004784:Environmental Monitoring / Q000379:methods*; D010126:Ozone / Q000032:analysis*; D012621:Seasons
chemical_list: D000393:Air Pollutants; D010126:Ozone