Most of the warnings are issued because of the presence of PCB or PAHs in fish liver or mussels. The high concentrations of hazardous chemicals are mainly a result of earlier industrial discharges.
Advice against consumption in 32 Norwegian fjords
Altogether advice against consumption applies to 32 Norwegian fjords. The total area covered has increased over the last few years. This is due to additional surveys, rather than a general deterioration in the state of the environment.
In some fjords, it has been possible to reduce the area covered by advice against consumption as a result of reduced discharges. In other areas, however, the concentrations of hazardous chemicals in seafood remain high even though discharges to the fjords have been significantly reduced.
Advice against the consumption of marine fish liver
Children, women of child-bearing age, pregnant women and breastfeeding mothers are advised against eating fish liver or any fish liver products. The population in general should limit their intake of such food. In particular, they are advised not to eat fish liver from areas that are known to be polluted by PCB. This applies to 17 out of the 32 areas on the map.
Advice against the consumption of fresh water fish
Due to the detection of high concentrations of mercury the Norwegian Food Safety Authority has introduced a nationwide advice against the consumption of fresh water fish. The warning concerns pike and perch larger than 25 cm. and big trout and char ( >1 kg). Pregnant women and breastfeeding mothers should avoid eating such fish. Others should not eat such fish more than once a month.