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Stronger association of polycyclic aromatic hydrocarbons with soot than with char in soils and sediments
Han, Y. M.1; Bandowe, B. A. M.2; Wei, C.1,2,4; Cao, J. J.1; Wilcke, W.2; Wang, G. H.1; Ni, H. Y.1; Jin, Z. D.1; An, Z. S.1; Yan, B. Z.3
2015
发表期刊CHEMOSPHERE
ISSN0045-6535
卷号119页码:1335-1345
文章类型Article
摘要

The knowledge of the association of polycyclic aromatic hydrocarbons (PAHs) with organic matter and carbonaceous materials is critical for a better understanding of their environmental transport, fate, and toxicological effects. Extensive studies have been done with regard to the relationship of PAHs with total organic carbon (TOC) and elemental carbon (EC) in different environmental matrices. The relationship between PAHs and the two subtypes of EC, char (combustion residues) and soot (produced via gas-to-particle conversion) also has been tested in field and laboratory experiments using reference materials. However, a direct comparison of associations of PAHs between with char and with soot in real environmental matrices has to our knowledge not yet been reported because of a lack of methodology to differentiate them. In this study, char and soot were measured using the IMPROVE method to test their associations with 12 EPA priority PAHs measured in topsoil samples (N = 22, top 10 cm) collected from the Guanzhong Plain and in surface sediment samples (N = 32, top 5 cm) from the Wei River (central China). In both soils and sediments, Sigma 12PAHs were more strongly associated with soot than with char, mainly due to the fact that soot and PAHs were produced in the same gas phase during combustion, had a strong affinity for each other, and were transported and deposited together, while char, the combustion residue, was transported differently to PAL-Is due to its large particle size. Stronger correlations between PAHs and the different carbon fractions (TOC, soot, and char) in sediments than in soils were observed, which is associated with the redistribution of PAHs among the organic matter pools in water because of the processes during soil erosion and sedimentation in the river. (C) 2014 Elsevier Ltd. All rights reserved.

关键词Relationship Elemental Carbon Char Soot Polycyclic Aromatic Hydrocarbons Sorption Capacity
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.chemosphere.2014.02.021
关键词[WOS]Historically Contaminated Sediments ; Thermal/optical Reflectance Method ; Persistent Organic Pollutants ; Chinese Loess Plateau ; Black Carbon ; Elemental Carbon ; Quality Guidelines ; Background Soils ; Part 1 ; Sorption
收录类别SCI
语种英语
WOS研究方向Environmental Sciences & Ecology
WOS类目Environmental Sciences
WOS记录号WOS:000347739600182
出版者PERGAMON-ELSEVIER SCIENCE LTD
引用统计
被引频次:47[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/9414
专题粉尘与环境研究室
通讯作者Han, Y. M.
作者单位1.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Key Lab Aerosol Sci & Technol, Xian 710075, Peoples R China
2.Univ Bern, Inst Geog, CH-3012 Bern, Switzerland
3.Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Han, Y. M.,Bandowe, B. A. M.,Wei, C.,et al. Stronger association of polycyclic aromatic hydrocarbons with soot than with char in soils and sediments[J]. CHEMOSPHERE,2015,119:1335-1345.
APA Han, Y. M..,Bandowe, B. A. M..,Wei, C..,Cao, J. J..,Wilcke, W..,...&Yan, B. Z..(2015).Stronger association of polycyclic aromatic hydrocarbons with soot than with char in soils and sediments.CHEMOSPHERE,119,1335-1345.
MLA Han, Y. M.,et al."Stronger association of polycyclic aromatic hydrocarbons with soot than with char in soils and sediments".CHEMOSPHERE 119(2015):1335-1345.
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