Atmospheric Pb variations in Central Asia since 1955 from Muztagata ice core record, eastern Pamirs

作     者：LI Zhen YAO Tandong TIAN Lide XU Baiqing LI Yuefang 

作者机构：Key Laboratory of Cryosphere and Environment Chinese Academy of Sciences Lanzhou 730000 China Laboratory of Environment and Process on Tibetan Plateau Institute of Tibetan Plateau Research Chinese Academy of Sciences Beijing 100085 China 

出 版 物：《Chinese Science Bulletin》 (Chin. Sci. Bull.)

年 卷 期：2006年第51卷第16期

页      面：1996-2000页

核心收录：

学科分类：083001[工学-环境科学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：This work was supported by the National Natural Science Foundation of China (Grant Nos. 40121101, 90102005) the Chinese Academy of Sciences (Grant No. KZCX3-SW-339) National Basic Research Program of China (Grant No. 2005CB422004) 

主　　题：冰核 慕士塔格山 铅 大气 中亚 帕米尔高原 

摘      要：A Muztagata ice core recovered at 7010 m altitude in East Pamirs provides a Pb concentration record from 1955 to 2000. The result reveals in- creasing Pb concentrations from 1955 to 1993, with two Pb concentration peaks in 1980 and 1993. After 1993, Pb concentrations in ice core show an obvi- ously declining trend. Analysis shows that the lead in the Muztagata ice core mainly came from anthropo- genic emissions from countries in Central Asia, while the local emission had little contribution.