PMID- 19628250
OWN - NLM
STAT- MEDLINE
DCOM- 20091021
LR  - 20171116
IS  - 1879-1298 (Electronic)
IS  - 0045-6535 (Linking)
VI  - 76
IP  - 11
DP  - 2009 Sep
TI  - Altitude dependence of polychlorinated biphenyls (PCBs) and polybrominated 
      diphenyl ethers (PBDEs) in surface soil from Tibetan Plateau, China.
PG  - 1498-504
LID - 10.1016/j.chemosphere.2009.06.045 [doi]
AB  - Remote mountain areas besides high latitude regions are beginning to receive 
      increased attention in studying the transport and behavior of persistent organic 
      pollutants (POPs). In the present work, surface soil samples were collected from 
      the Tibetan Plateau, the highest plateau in the world which includes the northern 
      slope of Mt. Qomolangma, to investigate the levels and trends of polychlorinated 
      biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) along the altitudinal 
      gradient. The average PCB and PBDE concentrations were 185.6 ng kg(-1)dry weight 
      (dw) (range 47.1-422.6 ng kg(-1)dw) and 11.1 ng kg(-1)dw (range 4.3-34.9 ng 
      kg(-1)dw), respectively. Regression analysis between the log-transformed 
      TOC-normalized concentrations and the altitudes of the sampling sites showed two 
      opposite trends with regard to altitude dependence: negative relationship with 
      altitude below about 4500 m followed by a positive altitude dependence above this 
      point. Considering minimum anthropogenic activities and very sparse precipitation 
      in the north of Himalayas, the trends above 4500 m imply that the significant 
      altitude dependence of these two groups of POPs were irrespective of pollution 
      sources, but could be predicted by the global distillation effect involving cold 
      condensation in high altitude mountain areas. Increasing levels of heavier 
      congeners were found in higher altitude sites, although the lighter congeners 
      were the main contributors to the total amount, suggesting that less volatile 
      congeners seem to become enriched easier than those more volatile at higher 
      altitudes in this region.
FAU - Wang, Pu
AU  - Wang P
AD  - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research 
      Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 
      100085, China.
FAU - Zhang, Qinghua
AU  - Zhang Q
FAU - Wang, Yawei
AU  - Wang Y
FAU - Wang, Thanh
AU  - Wang T
FAU - Li, Xiaomin
AU  - Li X
FAU - Li, Yingming
AU  - Li Y
FAU - Ding, Lei
AU  - Ding L
FAU - Jiang, Guibin
AU  - Jiang G
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20090722
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Halogenated Diphenyl Ethers)
RN  - 0 (Soil)
RN  - 0 (Soil Pollutants)
RN  - 7440-44-0 (Carbon)
RN  - DFC2HB4I0K (Polychlorinated Biphenyls)
SB  - IM
MH  - *Altitude
MH  - Carbon/analysis
MH  - China
MH  - Environmental Monitoring
MH  - Geography
MH  - Halogenated Diphenyl Ethers/*analysis
MH  - Kinetics
MH  - Polychlorinated Biphenyls/*analysis
MH  - Rain
MH  - Soil/*analysis
MH  - Soil Pollutants/*analysis
MH  - Temperature
MH  - Tibet
EDAT- 2009/07/25 09:00
MHDA- 2009/10/22 06:00
CRDT- 2009/07/25 09:00
PHST- 2009/04/15 00:00 [received]
PHST- 2009/06/16 00:00 [revised]
PHST- 2009/06/18 00:00 [accepted]
PHST- 2009/07/25 09:00 [entrez]
PHST- 2009/07/25 09:00 [pubmed]
PHST- 2009/10/22 06:00 [medline]
AID - S0045-6535(09)00753-X [pii]
AID - 10.1016/j.chemosphere.2009.06.045 [doi]
PST - ppublish
SO  - Chemosphere. 2009 Sep;76(11):1498-504. doi: 10.1016/j.chemosphere.2009.06.045. 
      Epub 2009 Jul 22.