A miniature bird-borne passive air sampler for monitoring halogenated flame retardants.

摘要: Abstract Birds have been used intensively as biomonitors of halogenated flame retardants (HFRs), and several studies reported elevated tissue concentrations inter-individual variability for these contaminants. While diet is known to be an important exposure pathway HFRs in birds, it has suggested that through air may represent underestimated source certain species. However, a method was not available measuring the atmospheric individual birds or other semi-volatile The goal this study develop bird-borne passive sampler (PAS) enabling determination gas- particle-phase using ring-billed gull (Larus delawarensis) nesting Montreal area (QC, Canada). new miniaturized elliptical-shaped PAS (mean weight: 2.72 g) tested two sorbent types during three periods (one, weeks). Results showed polyurethane foam (PUF) combined with glass fiber filter collected all major polybrominated diphenyl ethers (PBDEs) exhibited better performance collecting highly hydrophobic DecaBDE mixture congeners compared polydimethylsiloxane (PDMS). Emerging including hexabromobenzene, Dechlorane 604 Component B, plus (DP) isomers also were sampled by PUF-based PAS. Sampling rates most comparable between periods. This novel provides valuable information on non-dietary free-ranging HFRs.