Heavy metal analysis of fish in the Talvivaara mining area


The aim of the project is to obtain information on the long-term effects on fish caused by wastewater discharges from the Talvivaara mine in Sotkamo, because the accumulation of sediment heavy metal concentrations in fish is not necessarily a rapid process. Even though previous findings have shown that the fish are safe to eat, follow-up analyses are required in order to establish whether any changes in the concentrations have taken place over a longer monitoring period. The project is a continuation of a study launched in 2012 for analysing tissue alterations and concentrations of heavy metals in fish tissue possibly caused by the wastewater that has entered the bodies of water due to a gypsum pond leakage at the Talvivaara mine.


The project is aimed at obtaining information on the long-term effects on fish caused by wastewater discharges (heavy metals) from the Talvivaara mine.


A summary report will be drawn up by the end of 2015. Interim findings will be published in April - May and
November - December.


Talvivaara, heavy metals, wastewater discharges

Responsible project leader: 

Korhonen, Pekka K., Researcher, Natural Resources Institute Finland (Luke), Natural Resources and Bioproduction

Person at Evira responsible for the project:

Venäläinen, Eija-Riitta, Senior Reseacher, Ph.D., Chemistry and Toxicology Research Unit

In cooperation with:


Project status:


Year of commencement:


Year of completion:



A summary report by the end of 2015.

Project is financed by: 

The Ministry of Agriculture and Forestry (1710/311/2014)

Evira's project code:


Page last updated 10/18/2018