Climate Change Data Portal
DOI | 10.1007/s12665-011-0974-3 |
Ambient distribution of particulate- and gas-phase n-alkanes and polycyclic aromatic hydrocarbons in the Tibetan Plateau | |
Gong, Ping; Wang, Xiaoping; Yao, Tandong | |
发表日期 | 2011 |
ISSN | 1866-6280 |
卷号 | 64期号:7页码:1703-1711 |
英文摘要 | Attention has been paid for the levels, sources and health risks of atmospheric aliphatic and polycyclic aromatic hydrocarbons (n-alkanes and PAHs) in remote areas, however, few studies have focused on those in the Tibetan Plateau. In this study, 18 pairs of atmospheric samples were obtained during the period from August 2006 to July 2007 in Lhasa, the capital city of Tibet. Both gas-phase and particulate-phase n-alkanes and PAHs were measured. Concentrations of n-alkanes (gas + particulate phase, 99.1-480.9 ng/m(3)) and PAHs (gas + particulate phase, 11.4-72.5 ng/m(3)) in Lhasa are lower than those in many cities. The sources of n-alkanes related to biological and petroleum sources were 67 and 33%, respectively. According to the results of diagnostic ratios and principal component analysis, emission of traffic vehicles was one of the important PAH sources, and sources of benzo(a)pyrene was likely attributed to incense burning. Good simulations were obtained by traffic soot-based model for fluoranthene, pyrene and benzo(a)anthracene, while, wood soot-based model fitted the experimental results of benzo(a)pyrene better. This meant atmospheric fate of PAHs was mainly influenced by the adsorptive partitioning that occurred during traffic and incense burning procedures. In addition, the benzo[a]pyrene-equivalent carcinogenic power (BaPE) in the present study (0.1-1.6 ng/m(3)) is lower than those in other cities and also the air quality standard of China, suggesting that atmospheric PAHs caused low health risks. |
英文关键词 | Polycyclic aromatic hydrocarbons;n-Alkanes;Health risk;Source diagnostics;Lhasa City |
语种 | 英语 |
WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
WOS记录号 | WOS:000296737700002 |
来源期刊 | ENVIRONMENTAL EARTH SCIENCES |
来源机构 | 中国科学院青藏高原研究所 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/518 |
推荐引用方式 GB/T 7714 | Gong, Ping,Wang, Xiaoping,Yao, Tandong. Ambient distribution of particulate- and gas-phase n-alkanes and polycyclic aromatic hydrocarbons in the Tibetan Plateau[J]. 中国科学院青藏高原研究所,2011,64(7):1703-1711. |
APA | Gong, Ping,Wang, Xiaoping,&Yao, Tandong.(2011).Ambient distribution of particulate- and gas-phase n-alkanes and polycyclic aromatic hydrocarbons in the Tibetan Plateau.ENVIRONMENTAL EARTH SCIENCES,64(7),1703-1711. |
MLA | Gong, Ping,et al."Ambient distribution of particulate- and gas-phase n-alkanes and polycyclic aromatic hydrocarbons in the Tibetan Plateau".ENVIRONMENTAL EARTH SCIENCES 64.7(2011):1703-1711. |
条目包含的文件 | 条目无相关文件。 |
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。