| Composition and sources of polycyclic aromatic hydrocarbons in cryoconites of the Tibetan Plateau glaciers | |
| Li, QL (Li, Quanlian)1; Kang, SC (Kang, Shichang)1,2; Wang, NL (Wang, Ninglian)3; Li, Y (Li, Yang)4; Li, XF (Li, Xiaofei)1; Dong, ZW (Dong, Zhiwen)1; Chen, PF (Chen, Pengfei)1; Li, QL | |
| Source Publication | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 2017 | |
| Volume | 574Issue:0Pages:991-999 |
| DOI | 10.1016/j.scitotenv.2016.09.159 |
| Abstract | Dark-colored cryoconite can absorb substantial solar radiation, reduce the surface albedo of glaciers, and thus greatly accelerate glacier melting. Organic matters in cryoconites such as polycyclic aromatic hydrocarbons (PAHs) are kind of the light absorbing compositions. In this study, 15 PAHs containing 3-7 rings were identified in 61 cryoconites samples collected from seven glaciers over the Tibetan Plateau (TP). The average concentration of total PAHs in cryoconites samples was in the range of 6.67-3906.66 ng g(-1) dry weight. The highest average total PAH concentration was found in the southeastern TP, followed by the northern TP. The central TP contained the lowest amount of PAHs. Moreover, correlation analysis showed that total organic carbon (TOC) and grain size were only a minor factor for the accumulation of PAHs in cryoconites of the TP. Factor analysis and diagnostic ratios indicated that the PAHs were produced mainly from the incomplete combustion of coal, fossil fuels and bio-masses. The exhaust gas of locomotives also contributed to the accumulation of PAHs in the glaciers. The PAHs in these seven glaciers showed low toxic equivalent quantity (TEQ), and thus had low biological risk. Nevertheless, the pollution of PAHs in the southeastern TP needs to be addressed. (C) 2016 Published by Elsevier B.V. |
| Subject Area | 自然地理学 |
| WOS ID | WOS:000389090100094 |
| Language | 英语 |
| Indexed By | SCI |
| Keyword | SOURCE APPORTIONMENT SPATIAL-DISTRIBUTION CHINA DISTRIBUTION WOOD COMBUSTION ORGANIC-MATTER ICE CORE TRANSPORT SOIL QINGHAI PAHS |
| WOS Research Area | Environmental Sciences & Ecology |
| WOS Subject | Environmental Sciences ; Environmental Sciences & Ecology |
| Cooperation Status | 国内 |
| Subtype | Article |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itpcas.ac.cn/handle/131C11/8406 |
| Collection | 图书馆 |
| Corresponding Author | Li, QL |
| Affiliation | 1.Chinese Acad Sci, State Key Lab Cryospher Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China. 2.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100085, Peoples R China. 3.Northwestern Univ, Sch Urban & Environm Sci, Xian 710127, Peoples R China. 4.Chinese Acad Sci, Key Lab Tibetan Environm Changes & Land Surface P, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China. |
| Recommended Citation GB/T 7714 | Li, QL ,Kang, SC ,Wang, NL ,et al. Composition and sources of polycyclic aromatic hydrocarbons in cryoconites of the Tibetan Plateau glaciers[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2017,574(0):991-999. |
| APA | Li, QL .,Kang, SC .,Wang, NL .,Li, Y .,Li, XF .,...&Li, QL.(2017).Composition and sources of polycyclic aromatic hydrocarbons in cryoconites of the Tibetan Plateau glaciers.SCIENCE OF THE TOTAL ENVIRONMENT,574(0),991-999. |
| MLA | Li, QL ,et al."Composition and sources of polycyclic aromatic hydrocarbons in cryoconites of the Tibetan Plateau glaciers".SCIENCE OF THE TOTAL ENVIRONMENT 574.0(2017):991-999. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| V.574 991-999 2017.p（1104KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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