Journal
JOURNAL OF ENVIRONMENTAL SCIENCES
Volume 85, Issue -, Pages 200-207Publisher
SCIENCE PRESS
DOI: 10.1016/j.jes.2019.06.013
Keywords
Recycled plastics; Digestive fluids; Flame retardants; Leaching
Categories
Funding
- National Natural Science Foundation of China [41603085, 41877361]
- Natural Science Foundation of Guangdong Province [2016A030310440]
- Pearl River S&T Nova Program of Guangzhou [201806010185]
- Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program [2017BT01Z134]
- Key Research Program of Frontier Sciences, the Chinese Academy of Science [QYZDJ-SSW-DQC018]
Ask authors/readers for more resources
The exposure to plastic debris and associated pollutants for wildlife is of urgent concern, but little attention has been paid on the transfer of plastic additives from plastic debris to organisms. In the present study, the leaching of incorporated flame retardants (FRs), including polybrominated diphenyl ethers (PBDEs), alternative brominated FRs (AFRs), and phosphate flame retardants (PFRs), from different sizes of recycled acrylonitrile-butadiene-styrene (ABS) polymer were investigated in avian digestive fluids. The impact of co-ingested sediment on the leaching of additive-derived FRs in digestive fluids was also explored. In the recycled ABS, BDE 209 (715 mu g/g) and 1, 2-bis(2,4,6-tribromophenoxy) ethane (BTBPE, 1766 mu g/g) had the highest concentrations among all target FRs. The leaching proportions of FRs were higher in finer sizes of ABS. The leaching proportions of FRs from recycled ABS increased with elevated logK(OW) of FRs. In the tests with coexisted ABS and sediment, hexa-to deca-BDEs, BTBPE, and decabromodiphenyl ethane (DBDPE) migrated from ABS to sediment, which resulted in the less bioaccessible fractions of these FRs in gut fluids. More lipophilic chemicals tended to be adsorbed by sediment from ABS. The results suggest the migration of additive-derived FRs from plastics to other indigestible materials in digestive fluids. The findings in this study provide insights into the transfer of additive-derived FRs from plastics to birds, and indicate the significant contribution of FR-incorporated plastics to bioaccumulation of highly lipophilic FRs. (c) 2019 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
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