PMID- 11347605
OWN - NLM
STAT- MEDLINE
DCOM- 20010531
LR  - 20190714
IS  - 0013-936X (Print)
IS  - 0013-936X (Linking)
VI  - 35
IP  - 2
DP  - 2001 Jan 15
TI  - Bioaccumulation of persistent organic pollutants in lichen-caribou-wolf food 
      chains of Canada's Central and Western Arctic.
PG  - 325-34
AB  - While biomagnification of persistent organic pollutants (POPs) in aquatic food 
      chains is well documented, there have been few investigations of the 
      trophodynamics of POPs in Arctic terrestrial food chains. This study presents 
      field-collected concentration data and corresponding fugacities of various 
      hydrophobic organic chemicals (ranging in octanol-water partition coefficients or 
      K(OW) from approximately 10(3.8) to 10(9)) in two lichen species (Cladina 
      rangiferina and Cetraria nivalis), willow leaves (Salix glauca), barren-ground 
      caribou (Rangifer tarandus), and wolves (Canis lupus) from Canada's Central and 
      Western Arctic region. The results show that, in contrast to aquatic food chains, 
      persistent substances including beta-hexachlorocyclohexane and 
      1,2,4,5-tetrachlorobenzene with a K(OW) <10(5) can substantially biomagnify in 
      lichen-caribou-wolf food chains in Canada's Central and Western Arctic. Strong 
      positive correlations between the biomagnification factor and the octanol-air 
      partition coefficients (K(OA)) of nonmetabolizable compounds were observed in 
      wolves. In caribou, the biomagnification factors dropped slightly with increasing 
      K(OA). K(OA) proved to be a better indicator of biomagnification than K(OW). 
      Current management policies that consider only chemicals with K(OW) values >10(5) 
      as bioaccumulative substances fail to identify substances that have the potential 
      to biomagnify in Arctic terrestrial food chains despite a low K(OW) because of a 
      high K(OA).
FAU - Kelly, B C
AU  - Kelly BC
AD  - School of Resource and Environmental Management, Simon Fraser University, 
      Burnaby, British Columbia, Canada.
FAU - Gobas, F A
AU  - Gobas FA
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Environ Sci Technol
JT  - Environmental science & technology
JID - 0213155
RN  - 0 (Environmental Pollutants)
RN  - 0 (Organic Chemicals)
SB  - IM
MH  - Animals
MH  - Arctic Regions
MH  - Canada
MH  - Carnivora
MH  - Environmental Pollutants/*metabolism
MH  - *Food Chain
MH  - Lichens/*metabolism
MH  - Organic Chemicals/*metabolism
MH  - Reindeer
EDAT- 2001/05/12 10:00
MHDA- 2001/06/02 10:01
CRDT- 2001/05/12 10:00
PHST- 2001/05/12 10:00 [pubmed]
PHST- 2001/06/02 10:01 [medline]
PHST- 2001/05/12 10:00 [entrez]
AID - 10.1021/es0011966 [doi]
PST - ppublish
SO  - Environ Sci Technol. 2001 Jan 15;35(2):325-34. doi: 10.1021/es0011966.