Chlorinated and brominated diphenyl ether compounds (DPEs) have been detected by gas Chromatography/ mass spectrometry (GC/MS) in eggs and carcasses of fish-eating birds from Louisiana, Michigan, Ohio, Rhode Island, Texas, Virginia, and Ontario, Canada. Three of these compounds were quantified; the highest concentration of 0.90 ppm tetrachloro DPE was found in a common tern carcass (Sterna hirundo) from Rhode Island. This is the first time that the halogenated DPEs have been reported in avian tissues. The significance of these residues is unknown.
Additional publication details
Halogenated diphenyl ethers identified in avian tissues and eggs by GC/MS