Environmental monitoring at the Forsmark nuclear power plant

Our monitoring at the Forsmark nuclear power plant

Biotest lake

• surveys with nets
• surveys with fyke nets
• age and growth analyses on perch
• control of gonads and fitness on perch and roach
• blast fishing for fish fry
• temperature measurements

The power plant, Öregrundsgrepen and the reference area Finbofjärden in northwestern Åland

• monitoring of fish losses in the screening stations
• surveys with nets
• age and growth analyses on perch
• control of gonads and fitness on perch and roach
• blast fishing for fish fry
• temperature measurements
• soft bottom fauna
• hard bottom fauna
• bird inventories (reference area Kallrigafjärden)

The monitoring at Forsmark also consists of a radioecological part for which the Swedish Radiation Safety Authority is responsible.

Read our reports

We summarize the results of our monitoring in annual reports that are then used in the power plants' environmental reports to the county administrative boards. Every five years we conduct a more comprehensive evaluation. You can find the annual reports via SLU's publication database.

About Forsmark Nuclear Power Plant

Forsmark Nuclear Power Plant has three reactors that were commissioned between 1980 and 1985. Approximately 140,000 liters of brackish water per second from the nearby bay in Öregrundsgrepen is used to cool the nuclear power plant's condensers. The heated cooling water from the first two units is pumped out into the so-called Biotest lake - an approximately 90-hectare dammed water reservoir. The hot water from the third unit is discharged into a canal on the outside of Biotestsjön.