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- Ane Eide Kjæraas

Mercury in seafood around U-864

The mercury content of fish and shellfish found around the U-864 off western Norway is no higher than in marine life along the rest of the Norwegian coast.

The mercury content in crabs and other seafood around U-864 has been carefully monitored since 2004. (Photograph: Nifes)

This finding emerges from annual sampling and analysing of fish and crabs caught around the wrecked submarine by Norway’s National Institute of Nutrition and Seafood Research (Nifes) since 2004.

In June 2015, the Norwegian Food Safety Authority therefore revoked its warning that small children, pregnant women and breastfeeding mothers should not eat seafood from the wreck area. 

Read the news story: U-864: seafood warning withdrawn 

Little formation of methylmercury

Mercury must be absorbed into the food chain to become harmful. The submarine wreck lies in 160 metres of water in an area with strong currents, oxygen-rich seawater and few fine particles on the seabed.

These conditions are not very suitable for forming methylmercury, which is thought to be the reason why seafood in the area has not been more affected. 

Read more about monitoring and fish and other seafood around U-864 at the Nifes website: 


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