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Author

Choi, Sung-Deuk
Environmental Analytical Chemistry Lab (EACL)
Research Interests
  • Persistent organic pollutants, Environmental Analysis and monitoring, Multimedia modeling

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Human exposure to HBCD and TBBPA via indoor dust in Korea: Estimation of external exposure and body burden

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Title
Human exposure to HBCD and TBBPA via indoor dust in Korea: Estimation of external exposure and body burden
Author
Barghi, MandanaShin, Eun-SuKim, Jong-ChulChoi, Sung-DeukChang, Yoon-Seok
Keywords
HBCD; TBBPA; Dust; Indoor environment; Human exposure; Korea
Issue Date
201709
Publisher
ELSEVIER SCIENCE BV
Citation
SCIENCE OF THE TOTAL ENVIRONMENT, v.593-594, no., pp.779 - 786
Abstract
Human exposure to brominated flame retardants (BFRs) such as hexabromocyclododecane (HBCD) and tetrabromobisphenol A (TBBPA) mainly occurs through diet and dust ingestion. In this study, the BFR concentrations in 124 vacuum dust samples of six categories of indoor environments (homes, offices, kindergartens, cars, schools, and public indoor environments) and 32 surface dust samples were investigated. The median ΣHBCD concentrations ranged from 106.30 ng g− 1 in home dust to 496.13 ng g− 1 in office dust. The TBBPA concentrations in indoor dust (from 78.87 to 463.81 ng g− 1) were among the highest compared to other countries because of the high market demand for this flame retardant in Korea. The TBBPA concentrations in surface dust of living rooms were significantly higher (p < 0.05) than sleeping rooms, due to the presence of more electrical equipment in living rooms. The estimated daily intakes (EDI) of ΣHBCD and TBBPA (dust + diet) for toddlers were 6.18 ng kg− 1 bw d− 1 and 2.54 ng kg− 1 bw d− 1, respectively. In general, the ΣHBCD estimated body burden of Korean adults showed good agreement with the reported ΣHBCD median concentrations in their sera. Since the developmental health effect of exposure to HBCD was categorized as “high hazard” by the US Environmental Protection Agency, the estimated high body burden of ΣHBCD in Korean toddlers (7.91 ng g− 1 lw) warns us of possible adverse effects on the development of essential systems in their bodies.
URI
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DOI
http://dx.doi.org/10.1016/j.scitotenv.2017.03.200
ISSN
0048-9697
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