Study of Polybrominated Flame Retardants in Urban Indoor Environments of Hong Kong

Project: Research

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Recent concerns over the role of indoor environments as potential sources of human exposure to polybrominated flame retardants (PBFRs), especially through household and commercial building dust, have drawn the attention of researchers in North America and Western Europe. Potential significant sources of PBFRs in the Hong Kong environment, such as offices and electronics industries, are not well known. Research has been conducted on these compounds in many aquatic ecosystems in Hong Kong, but the occurrence of PBFRs in urban indoor environments has not been studied. Polybrominated diphenyl ethers (PBDEs) and hexabromocyclododecanes (HBCDs) are two PBFRs that are frequently studied because of their widespread occurrence and toxicities. This project proposes to (1) refine analytical techniques for PBDEs and HBCDs in household dust and indoor air samples, (2) determine their concentrations from representative Hong Kong Metropolitan households to evaluate the role of indoor dust and air in human exposure, and (3) estimate intakes of PBDEs and HBCDs through air inhalation and dust ingestion as a basis for preliminary human exposure assessment.


Project number7002293
Grant typeSRG
Effective start/end date1/04/081/02/10