Occurrence of polybrominated diphenyl ethers and polychlorinated biphenyls in shark liver oil supplements.
Results are reported of a pilot survey of concentrations of polybrominated diphenyl ethers (PBDEs) and polychlorinated biphenyls (PCBs) in shark liver oil supplements. Eleven brands of dietary supplements were analysed using an isotope dilution GC/MS method. Total concentrations of 10 PBDE congeners (BDE-28, -47, -49, -66, -99, -100, -153, -154, -155 and -183) ranged from 0.1 to 53 ng g-1 oil weight and total concentrations of six PCB congeners (CB-28/31, -52, -118, -153 and -180) in the samples ranged from 16 to 340 ng g-1 oil weight (undetected values are not included). Two brands of Japanese deep-sea shark liver oil contained the highest levels of PBDEs (49-53 ng g-1 oil weight) and PCBs (290-340 ng g-1 oil weight). These results indicate that PBDEs may have entered Japanese deep-sea waters.
Akutsu
Kazuhiko
K
Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan. akutu@iph.pref.osaka.jp
Tanaka
Yukio
Y
Hayakawa
Kazuichi
K
D000818:Animals; D019587:Dietary Supplements / Q000032:analysis*; D005395:Fish Oils / Q000737:chemistry*; D005399:Fishes; D005504:Food Analysis / Q000379:methods; D005506:Food Contamination / Q000032:analysis*; D008099:Liver / Q000737:chemistry; D011075:Polybrominated Biphenyls / Q000032:analysis*; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D012754:Sharks; D014874:Water Pollutants, Chemical
D005395:Fish Oils; D011075:Polybrominated Biphenyls; D014874:Water Pollutants, Chemical; D011078:Polychlorinated Biphenyls