Comparative study on PCDD/F pollution in soil from the Antarctic, Arctic and Tibetan Plateau

• Published in: Science of The Total Environment
• Main Authors: Jia, Shenglan, Wang, Qiang, Li, Li, Fang, Xuekun, Shi, Yehong, Xu, Weiguang, Hu, Jianxin
• Other Authors: Hu, JX (reprint author), Peking Univ, Collaborat Innovat Ctr Reg Environm Qual, Coll Environm Sci & Engn, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100871, Peoples R China., Peking Univ, Collaborat Innovat Ctr Reg Environm Qual, Coll Environm Sci & Engn, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100871, Peoples R China., Cent S Univ, Sch Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China., Norwegian Inst Air Res, N-2027 Kjeller, Norway., Beijing Gen Res Inst Min & Met, Beijing 100160, Peoples R China.
• Format: Journal/Newspaper
• Language: English
• Published: science of the total environment 2014
• Subjects: PCDD/Fs; Soil; Three Poles; FLEXPART model; PARTICLE DISPERSION MODEL; DIBENZO-P-DIOXINS; PERSISTENT ORGANIC POLLUTANTS; PCB CONCENTRATIONS; POLAR-REGIONS; AIR; CHINA; PCDFS; ATMOSPHERE; DEPOSITION; Antarctic; Arctic; Fildes; Fildes peninsula; The Antarctic; Antarc*
• Online Access: https://hdl.handle.net/20.500.11897/158222; https://doi.org/10.1016/j.scitotenv.2014.07.109

The concentrations of polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) in 35 soil samples collected from Fildes Peninsula in the Antarctic, Ny-Alesund in the Arctic, and Zhangmu-Nyalam in the Tibetan Plateau were reported in this study. A comparison of the total concentration and TEQ of PCDD/Fs at the Three Poles was conducted. Both the total concentration and TEQ of PCDD/Fs demonstrates a decreasing trend in the order of Zhangmu-Nyalam (mean: 26.22 pg/g, 0.37 pg I-TEQ/g) > Ny-Alesund (mean: 9.97 pg/g, 0.33 pg I-TEQ/g)> Elides Peninsula (mean: 2.18 pg/g, 0.015 pg I-TEQ/g) (p < 0.05). In all samples, the congener and homologue profiles dominated with higher (seven and eight) chlorinated PCDD/Fs (more than 85% of the total mass percentage of PCDD/Fs) at the Three Poles. Finally, a FLEXPART backward simulation was used to preliminarily identify the potential local and regional anthropogenic sources of PCDD/Fs. The results imply that the air masses passing over surrounding regions with significant PCDD/F emissions might contribute to the occurrence of PCDD/Fs in both the Arctic and Tibetan Plateau. (C) 2014 Elsevier B.V. All rights reserved. http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000343613100037&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 Environmental Sciences SCI(E) 4 ARTICLE [e-mail] 353-359 497