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Validation and application of a thermal-optical reflectance (TOR) method for measuring black carbon in loess sediments
Zhan, CL (Zhan, Changlin)[ 1,2,4 ]; Han, YM (Han, Yongming)[ 1 ]; Cao, JJ (Cao, Junji)[ 1,3 ]; Wei, C (Wei, Chong)[ 1,4 ]; Zhang, JQ (Zhang, Jiaquan)[ 5 ]; An, ZS (An, Zhisheng)[ 1 ]
2013-06-30
Source PublicationCHEMOSPHERE
Volume91Issue:11Pages:1462-1470
Subtype期刊论文
Abstract

In an effort to assess the potential contamination and determine the environmental risks associated with heavy metals, the surface sediments in Liaodong Bay, northeast China, were systematically sampled and analyzed for the concentrations of Cu, Pb, Zn, Cr, Ni, As, and Hg. The metal enrichment factor (EF) and geoaccumulation index (I (geo)) were calculated to assess the anthropogenic contamination in the region. Results showed that heavy metal concentrations in the sediments generally met the criteria of China Marine Sediment Quality (GB18668-2002); however, both EF and I (geo) values suggested the elevation of Pb concentration in the region. Based on the effect-range classification (TEL-PEL SQGs), Cu, Pb, Ni, and As were likely to pose environment risks, and the toxic units decreased in the order: Ni > Pb > Cr > Zn > As > Cu > Hg. The spatial distribution of ecotoxicological index (mean-ERM-quotient) suggested that most of the surface sediments were "low-medium" priority zone. Multivariate analysis indicated that the sources of Cr, Ni, Zn, Cu, and Hg resulted primarily from parent rocks, and Pb or As were mainly attributed to anthropogenic sources. The results of this study would provide a useful aid for sustainable marine management in the region.

KeywordBlack Carbon Loess Intercomparison Chemo-thermal Oxidation Thermal–optical Reflectance Dichromate Oxidation
DOI10.1007/s10661-012-2926-0
Indexed BySCI ; EI
Language英语
Citation statistics
Cited Times:69[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10046
Collection粉尘与环境研究室
Corresponding AuthorCao, JJ (Cao, Junji)[ 1,3 ]
Affiliation1.Key Laboratory of Aerosol Science and Technology, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075, China;
2.School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China;
3.Institute of Global Environmental Change, Xi’an Jiaotong University, Xi’an 710049, China;
4.Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
5.Environmental Science and Engineering College, Hubei Polytechnic University, Huangshi 435003, China
Recommended Citation
GB/T 7714
Zhan, CL ,Han, YM ,Cao, JJ ,et al. Validation and application of a thermal-optical reflectance (TOR) method for measuring black carbon in loess sediments[J]. CHEMOSPHERE,2013,91(11):1462-1470.
APA Zhan, CL ,Han, YM ,Cao, JJ ,Wei, C ,Zhang, JQ ,&An, ZS .(2013).Validation and application of a thermal-optical reflectance (TOR) method for measuring black carbon in loess sediments.CHEMOSPHERE,91(11),1462-1470.
MLA Zhan, CL ,et al."Validation and application of a thermal-optical reflectance (TOR) method for measuring black carbon in loess sediments".CHEMOSPHERE 91.11(2013):1462-1470.
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