Journal
CHEMOSPHERE
Volume 199, Issue -, Pages 603-611Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2018.02.041
Keywords
Electronic waste recycling; Polybrominated diphenyl ethers; Dechlorane plus; Health risk assessment
Categories
Funding
- Early Career Start/General Research Fund of Hong Kong [ECS/GRF 845212]
- FLASS Dean's Research Fund [04200, 04018, ECR10]
- Internal Research Grant of the Education University of Hong Kong [R3769]
- Canada Research Chair program
- the Great Concentration Foreign Experts program - State Administration of Foreign Experts Affairs, the P.R. China [GDT20143200016]
- Distinguished Visiting Professorship in the School of Biological Sciences of the University of Hong Kong
Ask authors/readers for more resources
Polybrominated diphenyl ethers (PBDEs, tri-to hepta-BDEs) and Dechlorane Plus (DP) in multiple samples (soil, sediment, road dust, and PM2.5 particles) in historical locations of our previous work in Guiyu (electronic-waste recycling town) in southeastern China were investigated in 2014. Ten years later, PBDEs and DP were detected in 100% of the samples. Sigma 3-7PBDEs were still relatively great, ranging from 1.2 x 10(1) to 2.1 x 10(3) ng/g dry weight (dw) in soil, 2.1 to 3.2 x 10(3) ng/g dw in sediment, 1.0 x 10(1) to 1.1 x 10(4) ng/g dw in road dust, which were a little less than or close to those measured in 2004. However, Sigma 3-7PBDEs in PM2.5 (5.0 x 10(2) to 8.4 x 10(2) pg/m(3)) were significantly lower in 2014. BDE-47, -99, 153, and 183 were predominant congeners, which were also predominant PBDEs reported in Guiyu (2006-2008). Greater proportions of lesser-brominated BDEs were predominant in PM2.5 than other samples. DP was detected in 100% of the samples collected with high levels. Total syn-DP and anti-DP concentrations were 3.8 to 2.1 x 10(3) ng/g dw in soil, 1.1 x 10(3) to 7.2 x 10(3) ng/g dw in sediment, 1.4 x 10(1) to 1.1 x 10(3) ng/g dw in road dust, and 1.8 x 10(2) and 1.7 x 10(2) pg/m(3) in PM2.5. Most of the fractions of anti-DP (f(anti)) (70%-80%) were consistent among samples. The health risk assessment showed that hazard indexes (His) of PBDEs or DPs for child or adult were all lower than 0.16. (c) 2018 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available