Document Detail


Selenium accumulation by raccoons exposed to irrigation drainwater at Kesterson National Wildlife Refuge, California, 1986.
MedLine Citation:
PMID:  2619319     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In February-March 1986, eight raccoons (Procyon lotor) were collected at Kesterson Reservoir (Merced Co., California), which had received selenium-contaminated irrigation drainwater, and four raccoons were collected at the nearby Volta Wildlife Area, which had not. Selenium concentrations in Kesterson raccoons averaged 19.9 ppm (micrograms/g dry wt) in liver, 28.3 ppm (dry wt) in hair, 21.6 ppm (dry wt) in feces, and 2.61 ppm (wet wt) in blood and exceeded Volta concentrations by 12, 30, 21, and 10 times, respectively. Selenium concentrations in livers of Kesterson raccoons were less than those in five of nine other mammal species sampled in 1984. Selenium concentrations in hair provided the strongest statistical separation between study areas. Hemoglobin levels in two Kesterson raccoons equalled levels reported in rats with selenium-induced anemia, but the raccoons showed no illness. Amyloidosis in one Kesterson raccoon may have been selenium-induced. Our data indicate that raccoon births peaked about 2 months later than was previously reported. Based on our sample of 12 raccoons, we found no evidence that contamination by irrigation drainwater had negative effects on raccoons inhabiting Kesterson.
Authors:
D R Clark; P A Ogasawara; G J Smith; H M Ohlendorf
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Archives of environmental contamination and toxicology     Volume:  18     ISSN:  0090-4341     ISO Abbreviation:  Arch. Environ. Contam. Toxicol.     Publication Date:  1989 Nov 
Date Detail:
Created Date:  1990-02-26     Completed Date:  1990-02-26     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0357245     Medline TA:  Arch Environ Contam Toxicol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  787-94     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
California
Feces / analysis
Feeding Behavior / drug effects
Raccoons / metabolism*
Reproduction / drug effects
Selenium / pharmacokinetics*,  toxicity
Tissue Distribution
Water Pollutants / pharmacokinetics*
Water Pollutants, Chemical / pharmacokinetics*,  toxicity
Chemical
Reg. No./Substance:
0/Water Pollutants; 0/Water Pollutants, Chemical; 7782-49-2/Selenium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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