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Radiation watchdog: More uranium than reported in Raahe gold mine water

Measurements of slush water at the Raahe gold mine showed uranium levels of 150 -200 micrograms per litre, compared to the 130 micrograms per litre reported one month ago in May. The Finnish Radiation Safety Authority STUK has stressed that in spite of the high uranium levels, there are no health risks.

Kaivoksen jätevesiallas
Waste water at the Raahe gold mine. Image: Yle

Increased uranium levels at the Raahe gold mine first came to light in May, when a waste license granted by regional administration officials in northern Finland indicated on average 130 micrograms per litre of uranium in the waste water.

Tests performed later by the Finnish Radiation Safety Authority STUK at the same mine showed elevated uranium levels compared to results reported earlier. The STUK test results indicate that the slush water at the mine contained 150 – 200 micrograms of uranium per litre.

STUK recommends uranium levels of no more than 100 micrograms per litre for water, but no recommendations have been set for waste water. The safety regulator however stressed that these levels of uranium do not present any health risks.

The supervisory body will continue to measure the levels of radioactive substances in the waste water of other mines. If altogether they exceed a certain limit, STUK may lay set out recommendations for the mining operations.

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