中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Elemental compositions of PM2.5 and TSP in Lijiang, southeastern edge of Tibetan Plateau during pre-monsoon period

文献类型:期刊论文

作者Zhu, CS (Zhu, Chongshu)[ 1 ]; Xu, HM (Xu, Hongmei)[ 1 ]; Cao, JJ (Cao, Junji)[ 1,3 ]; Zhang, NN (Zhang, Ningning)[ 1,2 ]
刊名PARTICUOLOGY
出版日期2013-02-28
卷号11期号:1(SI)页码:63-69
关键词Elements Enrichment Factors Pre-monsoon Lijiang
DOI10.1016/j.partic.2012.08.002
文献子类期刊论文
英文摘要

PM2.5 and total suspended particulate (TSP) samples were collected at Lijiang, southeastern Tibetan Plateau, China. Sixteen elements (Al, Si, S, K, Ca, Cr, Mn, Ti, Fe, Ni, Zn, As, Br, Sb, Pb and Cu) were analyzed to investigate their elemental compositions during the pre-monsoon period. The results showed that Ca was the most abundant element in both PM2.5 and TSP samples. The enrichment factors (EFs) of Si, Ti, Ca, Fe, K and Mn were all below 10 for both PM2.5 and TSP, and these elements also had lower PM2.5/TSP ratios (0.32-0.34), suggesting that they were mainly derived from crustal sources. Elements Cu, Zn, S, Br and Sb showed strong enrichment in PM2.5 and TSP samples, with their PM2.5/TSP ratios ranging from 0.66 to 0.97, indicating that they were enriched in the fine fractions and influenced by anthropogenic sources. Analysis of the wind field at 500 hPa and calculations of back trajectories indicated that Al, Si, Ca, Ti, Cr, Mn and Fe can be influenced by transport from northwestern China during the dust-storm season, and that S, K, Ni, Br and Pb reached high concentrations during westerly transport from south Asia. Combined with the principle component analysis and correlation analysis, elements of PM2.5 samples were mainly from crustal sources, biomass burning emissions and regional traffic-related sources.

语种英语
源URL[http://ir.ieecas.cn/handle/361006/10052]  
专题地球环境研究所_粉尘与环境研究室
通讯作者Cao, JJ (Cao, Junji)[ 1,3 ]
作者单位1.State Key Laboratory of Cryspheric Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China;
2.Key Laboratory of Aerosol Science & Technology, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075, China;
3.Institute of Global Environmental Change, Xi’an Jiaotong University, Xi’an, China
推荐引用方式
GB/T 7714
Zhu, CS ,Xu, HM ,Cao, JJ ,et al. Elemental compositions of PM2.5 and TSP in Lijiang, southeastern edge of Tibetan Plateau during pre-monsoon period[J]. PARTICUOLOGY,2013,11(1(SI)):63-69.
APA Zhu, CS ,Xu, HM ,Cao, JJ ,&Zhang, NN .(2013).Elemental compositions of PM2.5 and TSP in Lijiang, southeastern edge of Tibetan Plateau during pre-monsoon period.PARTICUOLOGY,11(1(SI)),63-69.
MLA Zhu, CS ,et al."Elemental compositions of PM2.5 and TSP in Lijiang, southeastern edge of Tibetan Plateau during pre-monsoon period".PARTICUOLOGY 11.1(SI)(2013):63-69.

入库方式: OAI收割

来源:地球环境研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。