Occurrence and ecological risk assessment of 2,2′,4,4′-tetrabromodiphenyl ether and decabromodiphenyl ether in surface waters across China
Polybrominated diphenyl ethers (PBDEs) are efficient brominated flame retardants and are released into various environmental media via usage, recycling and disposal. This study investigated the concentrations and ecological risks of two typical PBDEs, 2,2′,4,4′-tetrabromodiphenyl ether (BDE-47) and decabromodiphenyl ether (BDE-209), in surface waters across China from 2011 to 2018. The results showed that the concentration of BDE-209 (8.25 ng L) was higher than that of BDE-47 (1.02 ng L), and the concentrations of BDE-47 and BDE-209 in the lakes (2.56 ng L and 22.19 ng L, respectively) were higher than those in the rivers (0.58 ng L and 7.05 ng L, respectively). In addition, the concentration of BDE-209 in the wet season (2.61 ng L) was lower than that in the dry season (10.83 ng L), whereas the concentration of BDE-47 in the wet season (0.24 ng L) was a little lower than that in the dry season (0.99 ng L). BDE-47 and BDE-209 concentrations showed a gradual decrease in surface waters across China during the eight-year period. Based on the species sensitivity distribution (SSD) models, the 5% hazardous concentration (HC) and predicted no-effect concentration (PNEC) values were derived using the acute and chronic toxicity data of BDE-47 and BDE-209. Results showed that the PNEC values based on the acute and chronic toxicity data were 2.08 μg L and 0.52 μg L for BDE-47, respectively and 370 μg L and 0.34 μg L for BDE-209, respectively. The risk quotient (RQ) values of BDE-47 in surface waters across China were far smaller than 0.1 (low ecological risk). Similarly, the RQ values of BDE-209 were also smaller than 0.1, except for those at Baiyangdian Lake and Chaohu Lake, where the probability of 0.1 ≤ RQ < 1.0 (medium ecological risk) was approximately 10% based on 10,000 Monte Carlo simulations.
Ministry of Science and Technology of the People's Republic of China[2022YFC3902201];National Natural Science Foundation of China;
|WOS Research Area|
Environmental Sciences & Ecology
|WOS Accession No|
|ESI Research Field|
Cited Times [WOS]:1
|Document Type||Journal Article|
|Department||School of Environmental Science and Engineering|
1.School of Environment,Harbin Institute of Technology,Harbin,150090,China
2.School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.Department of Civil Engineering,Faculty of Engineering,The University of Hong Kong,Hong Kong,China
4.Guangdong Provincial Engineering Research Center for Urban Water Recycling and Environmental Safety,Tsinghua Shenzhen International Graduate School,Tsinghua University,Shenzhen,518055,China
|First Author Affilication||School of Environmental Science and Engineering|
|Corresponding Author Affilication||School of Environmental Science and Engineering|
Li，Bin,Shi，Jianghong,Zhang，Jiawei,等. Occurrence and ecological risk assessment of 2,2′,4,4′-tetrabromodiphenyl ether and decabromodiphenyl ether in surface waters across China[J]. CHEMOSPHERE,2023,312.
Li，Bin.,Shi，Jianghong.,Zhang，Jiawei.,Tao，Huanyu.,Ge，Hui.,...&Xiao，Ruijie.(2023).Occurrence and ecological risk assessment of 2,2′,4,4′-tetrabromodiphenyl ether and decabromodiphenyl ether in surface waters across China.CHEMOSPHERE,312.
Li，Bin,et al."Occurrence and ecological risk assessment of 2,2′,4,4′-tetrabromodiphenyl ether and decabromodiphenyl ether in surface waters across China".CHEMOSPHERE 312(2023).
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