| ^7Be and ^210pb radioactivity and implications on sources of surface ozone at Mt. Waliguan |
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| 作者姓名： | ZHENGXiangdong WANGGuojiang TANGJie ZHANGXiaochun YANGWei H.N.Lee WANGChangsheng |
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| 作者单位： | [1]ChineseAcademyofMeteorologicalSciences,Beijing100081,China [2]StateKeyLaboratoryofEnvironmentalGeochemistry,ChineseAcademyofSciences,Guiyang550002,China [3]Chinese-GlobalAtmosphericWatch,Xining710089,China [4]EnvironmentalMeasurementsLaboratory,U.S.DepartmentofHomelandSecurity,NewYork,NY10014-4811,USA |
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| 摘 要： | Beryllium-7 (^7Be) and lead-210 (^210Pb) radioactivity 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 ^7Be showed no obvious seasonal changes. Relatively high ^7Be and ^210Pb radioactivity was observed at Mt. Waliguan when compared with the observations at other mountain sites in other parts of the world. Surface ozone and ^7Be showed a consistent seasonal variation. 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.
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| 关 键 词： | 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 |
| 收稿时间： | 5 February 2004 |
7Be and210Pb radioactivity and implications on sources of surface ozone at Mt. Waliguan |
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| ZHENGXiangdong WANGGuojiang TANGJie ZHANGXiaochun YANGWei H.N.Lee WANGChangsheng.^7Be and ^210pb radioactivity and implications on sources of surface ozone at Mt. Waliguan[J].Chinese Science Bulletin,2005,50(2):167-171. |
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| Authors: | Xiangdong Zheng Guojiang Wang Jie Tang Xiaochun Zhang Wei Yang H N Lee Changsheng Wang |
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| Institution: | e-mail: zhengxd@cams.cma.gov.cn |
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| Abstract: | 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. |
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| Keywords: | Be 7 210Pb surface ozone Mt Waliguan |
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