PMID- 18291445
OWN - NLM
STAT- MEDLINE
DCOM- 20080828
LR  - 20161124
IS  - 0048-9697 (Print)
IS  - 0048-9697 (Linking)
VI  - 394
IP  - 1
DP  - 2008 May 1
TI  - The recent deposition of persistent organic pollutants and mercury to the Dasuopu 
      glacier, Mt. Xixiabangma, central Himalayas.
PG  - 134-43
LID - 10.1016/j.scitotenv.2008.01.016 [doi]
AB  - High mountains may serve as condensers for persistent organic pollutants (POPs) 
      and the ice/snow core can provide long-term records of atmospheric deposition of 
      pollutants. In this study, organochlorine pesticides (OCPs) and polycyclic 
      aromatic hydrocarbons (PAHs) in firn core from Dasuopu Glacier were analyzed and 
      the seasonal variation and deposition flux of these pollutants were investigated. 
      PCB 28 was always detected in samples from different firn core layers and 
      concentrations of PCB 28 were in the range of 0.09-0.3 ng/l. Hexachlorobenzene 
      (HCB) and total DDTs (p-p'-DDD and p-p'-DDT) were not always detected and were 
      only present in some samples. No p-p'-DDE and hexachlorocyclohexane (HCH) were 
      detected above the level of determination limits. Concentrations of HCB ranged 
      from 0.04 to 0.07 ng/l, and total DDTs were in the range of 0.15-0.3 ng/l. Total 
      glacier PAHs was below 26 ng/l. The levels of OCPs and PAHs in Dasuopu glacier 
      were roughly similar to values from the European mountain areas but lower than 
      those from Lys glacier (Italy) and glacier from Rocky Mountain. Hg concentration 
      (2-35 ng/l) in firn core samples was higher than that of remote region of Arctic. 
      PCB 28 didn't show obvious variation in different seasons, however for major PAH 
      compounds higher values were observed in summer than in winter. With regard to 
      Hg, it displayed winter maximum. Deposition flux of OCPs, PAHs and mercury showed 
      similar results with maximum flux occurring in the 2000s. After 2000/2001, 
      deposition flux decreased and reflected the possible decrease of emissions of 
      these atmospheric pollutants in the adjacent region.
FAU - Wang, Xiao-ping
AU  - Wang XP
AD  - Institute of Tibetan Plateau Research, Chinese Academy of Sciences, PO Box 2871, 
      Beijing 100085, China. wangxp@itpcas.ac.cn
FAU - Yao, Tan-dong
AU  - Yao TD
FAU - Wang, Peng-ling
AU  - Wang PL
FAU - Wei-Yang
AU  - Wei-Yang
FAU - Tian, Li-de
AU  - Tian LD
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20080304
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
RN  - 0 (Environmental Pollutants)
RN  - 0 (Hydrocarbons, Chlorinated)
RN  - 0 (Polycyclic Aromatic Hydrocarbons)
RN  - FXS1BY2PGL (Mercury)
SB  - IM
MH  - Environmental Monitoring
MH  - Environmental Pollutants/*analysis
MH  - Hydrocarbons, Chlorinated/*analysis
MH  - *Ice Cover
MH  - Mercury/*analysis
MH  - Polycyclic Aromatic Hydrocarbons/*analysis
EDAT- 2008/02/23 09:00
MHDA- 2008/08/30 09:00
CRDT- 2008/02/23 09:00
PHST- 2007/08/15 00:00 [received]
PHST- 2008/01/04 00:00 [revised]
PHST- 2008/01/08 00:00 [accepted]
PHST- 2008/02/23 09:00 [pubmed]
PHST- 2008/08/30 09:00 [medline]
PHST- 2008/02/23 09:00 [entrez]
AID - S0048-9697(08)00046-6 [pii]
AID - 10.1016/j.scitotenv.2008.01.016 [doi]
PST - ppublish
SO  - Sci Total Environ. 2008 May 1;394(1):134-43. doi: 
      10.1016/j.scitotenv.2008.01.016. Epub 2008 Mar 4.