http://dx.doi.org/10.1016/j.jhazmat.2011.05.036">
 

Document Type

Journal Article

Department/Unit

Department of Biology

Title

Exposure of Hong Kong residents to PBDEs and their structural analogues through market fish consumption

Language

English

Abstract

High concentrations of polybrominated diphenyl ethers (PBDEs) and their structural analogues (such as methoxylated (MeO) and hydroxylated (OH) PBDEs) had been observed in environmental samples and human tissues. This study evaluated the occurrence, potential source and human exposure of these organobrominated compounds via market fish consumption in Hong Kong. The contamination of 22 PBDEs, 7 MeO-BDEs, 15 OH-BDEs and 3 bromophenols (BRPs) were analyzed in 20 fish species (279 samples). The estimated daily intakes of PBDEs, MeO-BDEs, OH-BDEs and BRPs via fish consumption ranged from 4.4 to 14, 0.50 to 4.3, 0.02 to 0.43 and 0 to 0.21ng/kgday for Hong Kong residents, respectively, based on 50th and 95th centile concentrations. BDE-47 and 99 were found to be the major PBDE congeners while 2'-MeO-BDE-68, 6-MeO-BDE-47 and 3-MeO-BDE-47 were the dominant MeO-BDEs. Concentrations of OH-BDEs and BRPs were 10-100-fold less than those of PBDEs, with small frequencies of detection (max 36.7%). Dietary intake of PBDEs via fish consumption by Hong Kong residents was greater than many developed countries, such as the USA, UK, Japan and Spain. To our knowledge, this is the first report to estimate the dietary intake of MeO/OH-BDEs and BRPs via fish consumption. Our results indicated that the toxicity potential of these compounds should not be neglected. © 2011 Elsevier B.V.

Keywords

Bromophenols, Dietary intake, Fish, Hong Kong, Hydroxylated, Methoxylated, PBDE

Publication Date

2011

Source Publication Title

Journal of Hazardous Materials

Volume

192

Issue

1

Start Page

374

End Page

380

Publisher

Elsevier

ISSN (print)

03043894

ISSN (electronic)

18733336

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