Brominated flame retardant trends in aquatic birds from the Salish Sea region of the west coast of North America, including a mini-review of recent trends in marine and estuarine birds.

摘要: Polybrominated diphenyl ethers (PBDEs) increased in many matrices during the 1990s and early 2000s. Since voluntary restrictions regulations on PBDEs were implemented North America circa 2000s, decreases have occurred of these same matrices. To examine temporal trends Pacific, we retrospectively analysed eight non-PBDE flame retardants (FR) eggs two aquatic bird species, great blue herons, Ardea herodias, double-crested cormorants, Phalacrocorax auritus, collected along British Columbia coast, Canada from 1979 to 2012. Increasing PBDE concentrations observed both species followed by significant post-2000 for all dominant congeners ΣPBDE. Non-PBDE FRs generally undetected cormorant eggs, or detected at very low levels heron except hexabromocyclododecane (HBCDD). HBCDD, currently unregulated America, was not sampling years; however recent years (2003–2012). Dietary tracers (δ13C δ15N) did change significantly over time, indicating that changes are likely caused regulations. A comparison with recently published ΣPBDE marine birds Europe is given.