ENVR 156 |
| Polybrominated diphenyl ethers (PBDEs) are used as flame retardants in plastics, textiles and electronic components and, due to worldwide distribution and use, have become ubiquitous contaminants throughout the environment. Coho and chinook eggs and muscle fillets were sampled during the 2002-2006 spawning runs. PBDE concentrations declined 2-3x over the 2002-2006 sampling period for select chinook and coho tissues. Results of salmon egg and muscle tissue regression analysis indicate a strong quantitative (r2 = 0.95 and r2 = 0.98) relationship at the individual PBDE congener level between eggs and maternal muscle tissue for both chinook and coho salmon, respectively. Results also indicated an excellent quantitative (r2 = 0.94 and r2 = 0.99) fit between mixed and individual egg samples. These results indicate that batch egg samples have the potential to provide a fully integrated and representative sample of contaminants found in the entire salmon population collected each year. |
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General Papers
6:00 PM-8:00 PM, Wednesday, August 22, 2007 BCEC -- Exhibit Hall - B2, Poster
Division of Environmental Chemistry |