86 
Fish livers from the North and Baltic Sea: 
• Fish was caught during the following monitoring expeditions: Cruise no. 242 of 
FFS “Walter Hering III” from 22 August to 8 September 2002 and no. 255 from 25 
August to 9 September 2004. 
• Five to six sampling sites were selected in the North and Baltic Sea (see Table 25 
and Figure 12, Figure 13, Figure 14 for details) 
• Fish livers were collected from North Sea dab (Limanda limanda), flounder 
(.Platichthys flesus) and cod (Gadus morhua). Totally 60 single samples were 
obtained. 
• Detection limits of ca. 10 ng/g (total sPCA) required minimum 5 g of sample. This 
made pooling of up to five liver samples necessary. 
• More details about sampling is given in the appendix under sampling details. 
Cod liver from the northern North Atlantic 
• Caught in 2003 at the north and south coast of Iceland and the Lofot Islands. 
• Totally six samples delivered by the Norwegian Institute for Air Research (Dr. Urs 
Berger, Tromsp, Norway) 
Fish and sea birds from Bear Island 
• Bear Island is known as a site of elevated concentrations of polychlorinated 
compounds (PCBs, DDT, toxaphenes) due to long range transport and on-site 
bioaccumulation (Evenset et al., 2002; Evenseth el al., 2004). 
• Sampling was carried out in 2001 by Aquaplan-NIVA (Tromsp, Norway, Dr. 
Guttorm Christensen). 
• Two liver and muscle tissue samples from Arctic char (Salvelinus alpinus) from 
Lake Ellasjpen, two samples each of liver and muscle tissue from little auk (.Alle 
alle), kittiwake (Rissa tridactyla), glacous gull (Larus hyperboreus), see Table 25 
further details and Figure 9 for site description.