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Distribution and vertical migration of polycyclic aromatic hydrocarbons in forest soil pits of southeastern Tibet
Xue, YG (Xue, Yonggang)1,2,3; Wang, XP (Wang, Xiaoping)1,2; Gong, P (Gong, Ping)1,2; Yao, TD (Yao, Tandong)1,2
Source PublicationENVIRONMENTAL GEOCHEMISTRY AND HEALTH
2018-12-01
Volume40Issue:5 特刊:SIPages:1941-1953
DOI10.1007/s10653-017-9969-7
Abstract

PAHs could be transported to Tibetan Plateau in accompany with atmospheric circulation. The forest regions were found be an important sink for PAHs, while their distributions and migrations in forest are still uncertain. In this study, soil profile samples were collected in southeastern Tibet and the concentrations, distributions, and migration of PAHs in forest region were investigated. The PAHs levels in the forest soils were at the low end of remote sites, ranged from 27.4 to 120.3 ng g(-1) on a dry weight based. Due to low ambient temperature and high organic carbon content, enrichment of PAHs was found in higher altitude on north side. According to the soil profiles, the vertical distributions of PAHs in organic layers were mainly influenced by pedogenesis, while the vertical distributions in mineral layers were dominated by downward leaching effect. Enrich factor (EF) of PAHs was estimated, and the values in organic layers were positively correlated with the octanol-air partition coefficients (K-OA), but EFs in mineral layers decreased with the K-OA values. PAHs in the surface soils on the north side of forest were relatively stable, while the migration of PAHs on the south sides and other clearing sites was more active. The leaching rates of PAHs in clearing site ranged between 1.42 and 29.3%. The results from this study are valuable on the characterization of PAHs in Tibetan Plateau.

Subject Area地理学
WOS IDWOS:000452158700019
Language英语
Indexed BySCIE
KeywordPersistent Organic Pollutants Polychlorinated-biphenyls Organochlorine Pesticides Source Apportionment Atmospheric Deposition Spatial-distribution Western Sichuan Surface Soil Black Carbon Pahs
WOS Research AreaEngineering ; Environmental Sciences & Ecology ; Public, Environmental & Occupational Health ; Water Resources
WOS SubjectEngineering, Environmental ; Environmental Sciences ; Public, Environmental & Occupational Health ; Water Resources
Cooperation Status国内
ISSN0269-4042
Department环境变化与地表过程重点实验室
PublisherSPRINGER
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8525
Collection图书馆
Corresponding AuthorWang, XP (Wang, Xiaoping)
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China;
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China;
3.Chinese Acad Sci, Key Lab Aerosol Chem & Phys, SKLLQG, Inst Earth Environm, Xian 710061, Peoples R China.
Recommended Citation
GB/T 7714
Xue, YG ,Wang, XP ,Gong, P ,et al. Distribution and vertical migration of polycyclic aromatic hydrocarbons in forest soil pits of southeastern Tibet[J]. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,2018,40(5 特刊:SI):1941-1953.
APA Xue, YG ,Wang, XP ,Gong, P ,&Yao, TD .(2018).Distribution and vertical migration of polycyclic aromatic hydrocarbons in forest soil pits of southeastern Tibet.ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,40(5 特刊:SI),1941-1953.
MLA Xue, YG ,et al."Distribution and vertical migration of polycyclic aromatic hydrocarbons in forest soil pits of southeastern Tibet".ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 40.5 特刊:SI(2018):1941-1953.
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