Here, the dead seabed will be brought to life again

With a barge-like boat, aluminum solution is spread out into the water around Djurgårdsbrunnsviken.

The solution should treat the bottoms to reduce the phosphorus content.

The measure is expected to reduce the quantity by 1 tonne.

The city's hope is that the felling will have an effect for the next 15 years.

- This method is an effective way to take care of the toxic substances that are already in the water, says Katarina Luhr (MP), Stockholm City Council.