Polybrominated diphenyl ethers in marine sediments of Sanggou Bay in east China.
Polybrominated diphenyl ethers (PBDEs) were measured in the surface sediments collected in August 2015 in Sanggou Bay, China. The total concentrations of 13 PBDEs, including BDE-17, -28, -47, -66, -71, -85, -99, -100, -138, -153, -154, -183 and -190, and concentrations of BDE-209 were 0.223-1.259ng/g and 0.865-9.275ng/g, respectively. The PBDE levels increased from the outer bay to the inner bay. BDE-209 was the predominant congener, followed by BDE-47, BDE-71, and BDE-99. Significant positive correlations were observed for tri-BDEs with organic carbon (r=0.598, p<0.05) and with clay content (r=0.592, p<0.05). Principal component analysis revealed that PBDEs in Sanggou Bay were mainly derived from the usage, dismantling and degradation of commercial products (penta-, octa-, and deca-BDEs), which were then transported through continental runoff and atmospheric deposition. The ecological risks were mainly attributed to deca-BDE congeners with moderate risk level.
Qingdao Engineering Research Center for Rural Environment, Qingdao Agricultural University, Qingdao 266109, China.
Longhua
L
Wang
College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, China.
Wei
W
Ge
Qingdao Engineering Research Center for Rural Environment, Qingdao Agricultural University, Qingdao 266109, China.
Chao
C
Chai
Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China.
Bin
B
Xia
Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China.
Tao
T
Jiang
D061006:Bays; D002681:China; D004784:Environmental Monitoring; D019015:Geologic Sediments; D055768:Halogenated Diphenyl Ethers / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
D055768:Halogenated Diphenyl Ethers; D014874:Water Pollutants, Chemical
Ecological risk; Polybrominated diphenyl ethers (PBDEs); Sanggou Bay; Sediment; Source identification