PMID- 22796648 OWN - NLM STAT- MEDLINE DCOM- 20121102 LR - 20171116 IS - 1873-6424 (Electronic) IS - 0269-7491 (Linking) VI - 170 DP - 2012 Nov TI - Persistent organic pollutants in the Tibetan surface soil: spatial distribution, air-soil exchange and implications for global cycling. PG - 145-51 LID - 10.1016/j.envpol.2012.06.012 [doi] AB - There are limited data on persistent organic pollutants (POPs) in the soils of the Tibetan Plateau. This paper presents data from a survey of organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) in 40 background surface (0-5 cm) soils of the Tibetan Plateau. Soil concentrations (pg/g, dw) ranged as follows: DDTs, 13-7700; HCHs, 64-847; HCB, 24-564; sum of 15 PCBs, 75-1021; and sum of 9 PBDEs, below detection limit -27. Soil DDT, HCB, PCB and PBDE concentrations were strongly influenced by soil organic carbon content. HCH concentrations were clearly associated with the proximity to source regions in south Asia. The air-soil equilibrium status of POPs suggested the Tibetan soils may be partial "secondary sources" of HCB, low molecular weight PCBs and HCHs and will likely continue to be "sinks" for the less volatile DDE and DDT. CI - Copyright (c) 2012 Elsevier Ltd. All rights reserved. FAU - Wang, Xiao-ping AU - Wang XP AD - Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China. wangxp@itpcas.ac.cn FAU - Sheng, Jiu-jiang AU - Sheng JJ FAU - Gong, Ping AU - Gong P FAU - Xue, Yong-gang AU - Xue YG FAU - Yao, Tan-dong AU - Yao TD FAU - Jones, Kevin C AU - Jones KC LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120713 PL - England TA - Environ Pollut JT - Environmental pollution (Barking, Essex : 1987) JID - 8804476 RN - 0 (Air Pollutants) RN - 0 (Halogenated Diphenyl Ethers) RN - 0 (Pesticides) RN - 0 (Soil) RN - 0 (Soil Pollutants) RN - 4Z87H0LKUY (Hexachlorobenzene) RN - DFC2HB4I0K (Polychlorinated Biphenyls) SB - IM MH - Air Pollutants/*analysis MH - *Ecological and Environmental Phenomena MH - *Environmental Monitoring MH - Halogenated Diphenyl Ethers/analysis MH - Hexachlorobenzene MH - Pesticides/analysis MH - Polychlorinated Biphenyls/analysis MH - Soil/chemistry MH - Soil Pollutants/*analysis MH - Tibet EDAT- 2012/07/17 06:00 MHDA- 2012/11/03 06:00 CRDT- 2012/07/17 06:00 PHST- 2012/02/10 00:00 [received] PHST- 2012/05/23 00:00 [revised] PHST- 2012/06/07 00:00 [accepted] PHST- 2012/07/17 06:00 [entrez] PHST- 2012/07/17 06:00 [pubmed] PHST- 2012/11/03 06:00 [medline] AID - S0269-7491(12)00287-4 [pii] AID - 10.1016/j.envpol.2012.06.012 [doi] PST - ppublish SO - Environ Pollut. 2012 Nov;170:145-51. doi: 10.1016/j.envpol.2012.06.012. Epub 2012 Jul 13.