Summary reviews - press releases


Published
Summary of the national cyanobacteria review June–August 2022: Abundant cyanobacteria observed at sea this summer, cyanobacterial situation in lakes remained at the level of recent years

The cyanobacterial situation in the past summer has varied according to changing weather conditions. Cyanobacterial levels in sea areas and lakes peaked during the hottest periods of the summer in mid...

2022-08-25
Summary of algal bloom monitoring June-August 2021: The hot weather boosted the growth of cyanobacteria in the early summer – still the amount of cyanobacterial blooms was below average since mid-July

During the summer, the cyanobacterial situation has varied in both Finnish lakes and sea areas. The amount of cyanobacteria was exceptionally at its peak in the sea areas already in mid-July. Even in ...

2021-08-30
Summary of algal bloom monitoring June-August 2020: Varying cyanobacterial blooms in lakes during the summer, unusual cyanobacterial observations in northern parts of the Bothnian Sea and the Kvarken

The cyanobacterial situation over the past summer has been variable both in inland waters and sea areas. The number of cyanobacterial observations during June–August followed the weather conditions qu...

2020-08-27
Summary of algal bloom monitoring June-August 2019: Cyanobacteria were mostly mixed in the water in the Finnish sea areas, in lakes the cyanobacteria situation varied a lot

During the past summer, large amounts of blue-green algae (cyanobacteria) were seen particularly in the northern part of the Baltic Sea’s main basin, at the entrance to the Gulf of Finland and south o...

2019-08-29
Summary of algal bloom monitoring 2018: Sweltering summer brought exceptional cyanobacterial surface blooms to sea areas, in lakes abundant cyanobacterial blooms took place earlier

In the Gulf of Finland, cyanobacterial blooms during the summer of 2018 were strongest for the 2010's. Surface blooms covered at worst almost the entire Gulf of Finland. Also in the southern parts of ...

2018-08-30
Summary of algal bloom monitoring 2017: Plenty of cyanobacteria in sea areas during July-August, but fewer observations of cyanobacteria than usual in lakes

The algal situation in early summer was calm and cyanobacteria started to become more abundant only in July. In sea areas, cyanobacteria occurred abundantly especially in the northern Baltic proper a...

2017-08-31
Incidence of cyanobacteria started early this summer, but towards the end of summer abundant cyanobacteria occurrences halted

Cyanobacteria started to increase in abundance early this summer, but during late summer less cyanobacteria surface blooms were observed than normally. In the Finnish southwestern open sea areas cyano...

2016-09-01