PMID- 27640759
OWN - NLM
STAT- MEDLINE
DCOM- 20170321
LR  - 20181202
IS  - 1873-6424 (Electronic)
IS  - 0269-7491 (Linking)
VI  - 220
IP  - Pt A
DP  - 2017 Jan
TI  - Evidence for persistent organic pollutants released from melting glacier in the 
      central Tibetan Plateau, China.
PG  - 178-185
LID - S0269-7491(16)31272-6 [pii]
LID - 10.1016/j.envpol.2016.09.037 [doi]
AB  - Glacier alluvial deposits record persistent organic pollutants (POPs) not only 
      derived from the atmospheric deposition but also from the release of glacial 
      melting. The evidence for melting glacier in the Tibetan Plateau (TP) as a 
      secondary source of pollutants is introduced through investigating the 
      concentration of organochlorine pesticides (OCPs) in four deposited profiles 
      collected at the edge of the Changwengluozha glacier. Two concentration peaks 
      were observed for dichlorodiphenyltrichloroethanes (DDTs) and 
      hexachlorocyclohexanes (HCHs) in the past century. The first peak was observed in 
      the 1970s, corresponding with the heavy usage of HCHs and DDTs in the surrounding 
      countries and regions. The second one was in 2000 when the production and usage 
      of DDTs and HCHs were strictly limited, which possibly indicated a significant 
      release from melting glacier. This result was further supported by the 
      enantiomeric fraction values for alpha-HCH and o,p'-DDT. On the other hand, the 
      dramatic increase of polycyclic aromatic hydrocarbons (PAHs) from atmospheric 
      deposition, which was associated with the socioeconomic development in Tibet, 
      shaded the release of PAHs from melting glacier. This study reveals not only the 
      air deposition history of legacy POPs but also a substantial release of OCPs from 
      glacier to the adjacent environment. Our research supports the hypothesis that 
      the melting glacier in the TP represents a secondary source of OCPs, which is 
      consistent with the findings in the Alps glaciers.
CI  - Copyright A(c) 2016 Elsevier Ltd. All rights reserved.
FAU - Li, Jun
AU  - Li J
AD  - State Key Laboratory of Biogeology and Environmental Geology, China University of 
      Geosciences, Beijing 100083, China; School of the Earth Sciences and Resources, 
      China University of Geosciences, Beijing 100083, China.
FAU - Yuan, Guo-Li
AU  - Yuan GL
AD  - State Key Laboratory of Biogeology and Environmental Geology, China University of 
      Geosciences, Beijing 100083, China; School of the Earth Sciences and Resources, 
      China University of Geosciences, Beijing 100083, China. Electronic address: 
      yuangl@cugb.edu.cn.
FAU - Wu, Ming-Zhe
AU  - Wu MZ
AD  - School of the Earth Sciences and Resources, China University of Geosciences, 
      Beijing 100083, China.
FAU - Sun, Yong
AU  - Sun Y
AD  - School of the Earth Sciences and Resources, China University of Geosciences, 
      Beijing 100083, China.
FAU - Han, Peng
AU  - Han P
AD  - School of the Earth Sciences and Resources, China University of Geosciences, 
      Beijing 100083, China.
FAU - Wang, Gen-Hou
AU  - Wang GH
AD  - School of the Earth Sciences and Resources, China University of Geosciences, 
      Beijing 100083, China.
LA  - eng
PT  - Journal Article
DEP - 20160915
PL  - England
TA  - Environ Pollut
JT  - Environmental pollution (Barking, Essex : 1987)
JID - 8804476
RN  - 0 (Hydrocarbons, Chlorinated)
RN  - 0 (Pesticides)
RN  - 0 (Polycyclic Aromatic Hydrocarbons)
SB  - IM
MH  - *Environmental Monitoring
MH  - Geologic Sediments/*chemistry
MH  - Hydrocarbons, Chlorinated/*analysis
MH  - Ice Cover/*chemistry
MH  - Pesticides/*analysis
MH  - Polycyclic Aromatic Hydrocarbons/*analysis
MH  - Tibet
OTO - NOTNLM
OT  - Glacial release
OT  - Historical records
OT  - Organochlorine pesticides
OT  - Polycyclic aromatic hydrocarbons
OT  - Tibetan Plateau
EDAT- 2016/09/20 06:00
MHDA- 2017/03/23 06:00
CRDT- 2016/09/20 06:00
PHST- 2016/07/01 00:00 [received]
PHST- 2016/08/30 00:00 [revised]
PHST- 2016/09/12 00:00 [accepted]
PHST- 2016/09/20 06:00 [pubmed]
PHST- 2017/03/23 06:00 [medline]
PHST- 2016/09/20 06:00 [entrez]
AID - S0269-7491(16)31272-6 [pii]
AID - 10.1016/j.envpol.2016.09.037 [doi]
PST - ppublish
SO  - Environ Pollut. 2017 Jan;220(Pt A):178-185. doi: 10.1016/j.envpol.2016.09.037. 
      Epub 2016 Sep 15.