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- W2300918515 abstract "Sediment samples (n = 20) were collected from Yangtze River Estuary (YRE) and the adjacent East China Sea (ECS) inner shelf to explore spatial and temporal distributions, environmental fate, sources and potential health risk of polybrominated diphenyl ethers (PBDEs). Concentrations of BDE-209 and total 7 PBDEs (without BDE-209; ∑7PBDEs) ranged from 62.3 to 1758 pg g−1 and from 36.9 to 233.6 pg g−1 dry weight, respectively; both of the highest values occurred near the city of Wenzhou. Concentrations of BDE-209 and ∑7PBDEs both indicated a decreasing trend from inshore areas toward outer shelf. Significantly positive linear correlations were only observed between logBDE-183 concentrations and TOC/grain size (r2 = 0.6734 and 0.5977 for TOC and grain size, respectively) as well as BDE-209 and TOC/grain size (r2 = 0.4137 and 0.5332 for TOC and grain size, respectively) in the north of 28°N, indicating that YR had significant influence on the distribution of higher brominated congeners only in the north part. Depth profiles of PBDEs in a sediment core P01 (n = 1, m = 11) collected from YRE showed that the input of BDE-209 gradually increased from 1930 to 2010, while the levels of ∑7PBDEs peaked in 1986 and obviously decreased in recent years. Partial Least-Squares Regression (PLSR) revealed that PBDEs in the coastal ECS were mainly from direct discharge of local anthropogenic activities (80.7%), followed by surface runoff of contaminated soils (15.1%), microbial degradation after sedimentation (2.6%) and photodegradation during atmospheric transportation (1.6%). The cancer risk of human exposure to BDE-209 at the 95% confidence level was 3.09 × 10−7, 1.67 × 10−7 and 8.86 × 10−7 for children, teens and adults, respectively, significantly lower than the threshold level (10−6). Hazard index (HI) calculated for non-cancer risk was also far less than 1 for the three groups, suggesting no non-cancer risk." @default.
- W2300918515 created "2016-06-24" @default.
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- W2300918515 creator A5075104676 @default.
- W2300918515 date "2016-06-01" @default.
- W2300918515 modified "2023-10-10" @default.
- W2300918515 title "Characterizing distributions, composition profiles, sources and potential health risk of polybrominated diphenyl ethers (PBDEs) in the coastal sediments from East China Sea" @default.
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- W2300918515 doi "https://doi.org/10.1016/j.envpol.2016.02.054" @default.
- W2300918515 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/26970872" @default.
- W2300918515 hasPublicationYear "2016" @default.
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