Dioxins and PCBs in Greenland shark (Somniosus microcephalus) from the North-East Atlantic.
The Greenland shark (Somniosus microcephalus) is a high-trophic fish species present in Arctic waters. The present study aimed to determine concentrations of polychlorinated dibenzo-p-dioxins and furans (PCDDs/Fs), dioxin-like (DL) PCBs and six non-dioxin-like (NDL) PCBs in muscle and liver from 10 female Greenland sharks collected between 2001 and 2003 from Icelandic waters. The mean total concentrations of PCDDs/Fs were 13 and 530pg/g fat for muscle and liver, respectively, and show enrichment in the liver. Concentrations of DL-non-ortho PCBs were also higher in liver compared to muscle with mean concentrations of 7.8 and 0.36ng/g fat, respectively. No enrichment in the liver was found for DL-mono-ortho- and NDL-PCBs. No correlation was found between the size range studied and total concentrations of the compounds analyzed. Total WHO-TEQs (PCDDs/Fs and DL-PCBs) ranged between 7.1-70 and 54-1500pg/g fat in muscle and liver, respectively.
Strid
Anna
A
Department of Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden. anna.strid@mk.su.se
Jörundsdóttir
Hrönn
H
Päpke
Olaf
O
Svavarsson
Jörundur
J
Bergman
Ake
A
D000818:Animals; D001267:Atlantic Ocean; D001572:Benzofurans / Q000378:metabolism*; D000072338:Dibenzofurans, Polychlorinated; D004147:Dioxins / Q000378:metabolism*; D004784:Environmental Monitoring; D005260:Female; D008099:Liver / Q000378:metabolism; D009132:Muscles / Q000378:metabolism; D011078:Polychlorinated Biphenyls / Q000378:metabolism*; D012754:Sharks / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000378:metabolism*
D001572:Benzofurans; D000072338:Dibenzofurans, Polychlorinated; D004147:Dioxins; D014874:Water Pollutants, Chemical; D011078:Polychlorinated Biphenyls