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Svalbard Statistics 2001

21   Level1 of PCB-153 in polar bears. 1990-1998. ppb wet weight in plasma
  Average Lowest value Highest value Number of samples
1990 69.4 50.5 95.3 4
1991 37.2 32.9 42.1 8
1992 38.8 29.7 50.7 9
1993 26.2 22.8 30.1 26
1994 27.6 24.3 31.3 19
1995 30.2 26.5 34.4 23
1996 30.1 25.7 35.1 23
1997 26.9 24.3 29.8 44
1998 20.0 16.0 25.1 10
1  The numbers are not adjusted for age, place, time of year etc.
Source: Norwegian Polar Research Institute.
More information: Henriksen, E.O., Ø. Wiig, J.U. Skaare, G.W. Gabrielsen og A.E. Derocher. 'Monitoring PCBs in polar bears: lessons learned from Svalbard', Journal of Environmental Monitoring, in press.

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2001 © Statistics Norway