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Human exposure to legacy and emerging flame retardants in indoor dust: A multiple-exposure assessment of PBDEs

Title
Human exposure to legacy and emerging flame retardants in indoor dust: A multiple-exposure assessment of PBDEs
Author
이현경
Keywords
PBDE; OPFR; NBFR; DP; Toddler
Issue Date
2020-06
Publisher
Elsevier BV
Citation
Science of the Total Environment, v. 719, Article no. 137986, 9pp
Abstract
Human exposure to flame retardants (FRs) in indoor environments is a growing concern. In this study, the concentrations of polybrominated diphenyl ethers (PBDEs) and their alternatives, such as novel brominated flame retardants (NBFRs), dechlorane plus (DP), and organophosphate flame retardants (OPFRs), were measured in dust from indoor environments in Korea to investigate their occurrence, contamination profiles, and health risks. Legacy and emerging FRs were detected in dust samples, indicating widespread contamination of indoor environments. The concentrations of alternative FRs were higher in dust from offices compared with house dust, suggesting that office environments are major consumers of alternative FRs. Similar compositional profiles for indoor dust were found for PBDEs in different microenvironments and regions, while OPFR composition varied widely due to disparate applications. The estimated daily intakes of PBDEs, NBFRs, and OPFRs via dust ingestion were lower than the reference doses proposed by previous studies. A multiple-exposure assessment showed that dust ingestion was a major contributor to total PBDEs for toddlers and adults. However, major exposure pathways of BDEs 47 and 209 differed between toddlers and adults. Our study suggests that multiple exposure pathways should be considered in a comprehensive exposure assessment of PBDEs.
URI
https://www.sciencedirect.com/science/article/pii/S0048969720308962https://repository.hanyang.ac.kr/handle/20.500.11754/163455
ISSN
0048-9697
DOI
10.1016/j.scitotenv.2020.137386
Appears in Collections:
RESEARCH INSTITUTE[E](부설연구소) > INSTITUTE OF OCENA AND ATMOSPHERIC SCIENCES(해양ㆍ대기과학연구소) > Articles
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