
Blue-green algae observations have decreased this week31.7.2025 13:10:00 EEST | Suomen ympäristökeskus | Press release
Compared to the previous week, the number of blue-green algae observations has decreased in inland waters, along the coast, and in open sea areas. In inland waters, blue-green algae occur less than usual for this time of year, while the situation along the coast and in the open sea has remained at an average level. However, the situation varies by region, and individual, more abundant occurrences have been observed in different parts of the country.