^(7)Be and^(210)Pb radioactivity and implications on sources of surface ozone at ***

作     者：ZHENGXiangdong WANGGuojiang TANGJie ZHANGXiaochun YANGWei H.N.Lee WANGChangsheng 

作者机构：ChineseAcademyofMeteorologicalSciencesBeijing100081China StateKeyLaboratoryofEnvironmentalGeochemistryChineseAcademyofSciencesGuiyang550002China Chinese-GlobalAtmosphericWatchXining710089China EnvironmentalMeasurementsLaboratoryU.S.DepartmentofHomelandSecurityNewYorkNY10014-4811USA 

出 版 物：《Chinese Science Bulletin》 (CHINESE SCIENCE BULLETIN)

年 卷 期：2005年第50卷第2期

页      面：167-171页

核心收录：

学科分类：07[理学] 070602[理学-大气物理学与大气环境] 0706[理学-大气科学] 

基　　金：This work was financially supported by the National Natural Science Foundation of China(Grant No.20175032) 

主　　题：大气污染 悬浮微粒 ^7Be ^210pb 放射能 表面臭氧 Mt.Waliguan 铍 铅 季节变化 

摘      要：Beryllium-7 (7Be) and lead-210 (210Pb) radioac- tivity in aerosols collected, from October 2002 to January 2004 at Mt. Waliguan, by the Global Atmospheric Watch (GAW) Station, Qinghai Province is presented. The data were analyzed together with simultaneously measured surface ozone concentrations. We found that short time variations of 7Be and 210Pb were linked to alternations of synoptic weather around the Mt. Waliguan region. 210Pb showed the lowest concentration in summer while Be showed no obvious sea- 7 sonal changes. Relatively high Be and 7 210 Pb radioactivity was observed at Mt. Waliguan when compared with the ob- servations at other mountain sites in other parts of the world. Surface ozone and 7Be showed a consistent seasonalvariation. Surface ozone correlated fairly well with 7Be/210Pb ratio. This suggested that vertical transport from higher altitudes of the atmosphere has predominant effects on the budget of surface ozone at Mt. Waliguan.