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Model estimates bioaccumulation of total PCBs, dioxin-furan TEQs, and total mercury in mink liver based on concentrations in Lake Ontario water.
MedLine Citation:
PMID:  19629572     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
We used stable isotope analysis and a bioaccumulation model to estimate concentrations of total polychlorinated biphenyls (PCBs), dioxin-furan toxic equivalents (TEQs), and total mercury (Hg) in mink and to compare predicted ranges with their chemical concentrations in mink liver (PCB, TEQ) and brain (Hg). Actual concentrations were within predicted bounds for total PCB, dioxin-furan TEQ, and Hg except in two cases (lowest PCB and highest Hg) which were very close to predicted bounds. Based on (15)N analysis, the trophic level of mink ranged from 3.4 to 3.9. Animals at the upper end of the range were exposed to Lake Ontario water and its food web, whereas those at the lower end were captured at inland locations. Because of the complexity of wetland (an important habitat for mink in this study) food webs with pelagic, littoral, and terrestrial carbon sources and overlapping (13)C signatures, whether the origins of mink diets were aquatic or terrestrial could not be determined. We have established a nondestructive biomonitoring tool to reasonably estimate concentrations of total PCBs, TEQs and total Hg in mink tissues as concentrations of these chemicals change in their water supply.
Authors:
Sara T Wellman; James M Haynes; James J Pagano
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-07-23
Journal Detail:
Title:  Archives of environmental contamination and toxicology     Volume:  57     ISSN:  1432-0703     ISO Abbreviation:  Arch. Environ. Contam. Toxicol.     Publication Date:  2009 Nov 
Date Detail:
Created Date:  2009-10-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0357245     Medline TA:  Arch Environ Contam Toxicol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  808-15     Citation Subset:  IM    
Affiliation:
Department of Environmental Science and Biology, The College at Brockport, State University of New York, Brockport, NY, 14420, USA.
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