Last year the algae blooms were much more fierce, but this season no major outbreaks have been discovered.
A couple of local outbreaks in parts of the Stockholm Archipelago and the Gulf of Finland raised alarm bells, but the Swedish branch of the Worldwide Fund for Nature believes that this summer’s low temperatures and windy weather have kept the algae away.
However, they do warn that if the weather should get warmer, the problem will get worse.
Low levels of oxygen and the over-fertilisation of the Baltic Sea has raised awareness of the health of the water for the countries surrounding it.
The Baltic Sea nations are expected to present an action plan later in the autumn, on how to improve environmental conditions in the sea.