N-Alkanes and polycyclic aromatic hydrocarbons in total suspended particulates from the southeastern Tibetan Plateau: Concentrations, seasonal variations, and sources | |
Chen, Y (Chen, Yang)[ 1 ]; Cao, JJ (Cao, Junji)[ 1,2 ]; Zhao, J (Zhao, Jing)[ 2 ]; Xu, HM (Xu, Hongmei)[ 1 ]; Arimoto, R (Arimoto, Richard)[ 1 ]; Wang, GH (Wang, Gehui)[ 1 ]; Han, YM (Han, Yongming)[ 1 ]; Shen, ZX (Shen, Zhenxing)[ 2 ]; Li, GH (Li, Guohui)[ 1 ] | |
2014-02-01 | |
发表期刊 | Science of the Total Environment |
卷号 | 470页码:9-18 |
文章类型 | 期刊论文 |
摘要 | Sixty-two suspended particle (TSP) samples were collected from Lulang on the southeastern Tibetan Plateau from July 2008 and July 2009 to investigate the concentrations, seasonal variations, and sources of n-alkanes and polycyclic aromatic hydrocarbons (PAHs). Samples were analyzed using thermal-deposition gas chromatography mass spectrometry. The concentrations of particulate total n-alkanes ranged from 0.10 to 21.83ngm-3, with an annual mean of 1.25ngm-3; the PAHs ranged from 0.06 to 2.53, with a mean of 0.59 ngm-3. Up to 70% of PAHs were 5- and 6-ring compounds. The n-alkanes and PAHs both showed higher concentrations in winter and lower concentrations in summer. Analyses of diagnostic ratios indicate that 6.4% to 58.9% (mean 24.9%) of the n-alkanes were from plant waxes. Source characterization studies, i.e. diagnostic ratio and positive factor matrix analysis, suggest that the PAHs were from biomass burning as well as from fossil fuel combustion. Backward trajectory analysis suggests that the biomass mass burning pollutants could be from South Asia and western China via long distance transport. The study contributes to a more comprehensive understanding of the concentrations, seasonal variations, and sources of n-alkanes and PAHs in a remote background area in Tibetan Plateau. |
关键词 | N-alkanes Pahs Aerosol Tibet |
DOI | 10.1016/j.scitotenv.2013.09.033 |
收录类别 | SCI ; EI |
语种 | 英语 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/9691 |
专题 | 粉尘与环境研究室 |
通讯作者 | Cao, JJ (Cao, Junji)[ 1,2 ] |
作者单位 | 1.Key Lab of Aerosol Science & Technology, SKLLQG, Institute of Earth Environment, Chinese Academy of Science, Xi'an, China; 2.Xi'an Jiaotong University, Xi'an, China |
推荐引用方式 GB/T 7714 | Chen, Y ,Cao, JJ ,Zhao, J ,et al. N-Alkanes and polycyclic aromatic hydrocarbons in total suspended particulates from the southeastern Tibetan Plateau: Concentrations, seasonal variations, and sources[J]. Science of the Total Environment,2014,470:9-18. |
APA | Chen, Y .,Cao, JJ .,Zhao, J .,Xu, HM .,Arimoto, R .,...&Li, GH .(2014).N-Alkanes and polycyclic aromatic hydrocarbons in total suspended particulates from the southeastern Tibetan Plateau: Concentrations, seasonal variations, and sources.Science of the Total Environment,470,9-18. |
MLA | Chen, Y ,et al."N-Alkanes and polycyclic aromatic hydrocarbons in total suspended particulates from the southeastern Tibetan Plateau: Concentrations, seasonal variations, and sources".Science of the Total Environment 470(2014):9-18. |
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n-Alkanes and polycy(1293KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 请求全文 |
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