Polybrominated diphenyl ethers in doemstic indoor dust from Canada, New Zealand, United Kingdom and United States
Faculty of Pharmaceutical, Biomedical and Veterinary Sciences. Pharmacy
, p. 2184-2187
University of Antwerp
Polybrominated diphenyl ethers (PBDEs) were measured in domestic indoor dust from: Amarillo/Austin, Texas, US; Birmingham, UK; Toronto, Canada; and Wellington, New Zealand. Concentrations of BDE 209 in two UK samples are at 520,000 and 100,000 ng g-1 - the highest ever recorded in a domestic (or office) indoor dust sample. Median concentrations in ng g-1 were: Canada (620 and 560 for Σtri-hexa-BDEs and BDE 209, respectively), New Zealand (96, BDE 209 not measured), UK (59 and 2,800) and US (1,600 and 1,300). With respect to BDE 209, concentrations were in the order: UK ~ US > Canada. For Σtri-hexa-BDEs, the order of concentrations was US ~ Canada >> New Zealand ~ UK. This suggests that while North American dusts are contaminated by both Deca- and Penta-BDE commercial formulations, UK dusts are contaminated predominantly by Deca-BDE. The presence of PBDEs in dusts from New Zealand (where PBDEs were never manufactured or imported as chemicals), suggests international trade in PBDE-containing goods is an important pathway effecting their global distribution.