The goal of risk assessment is to use scientific methods to predict potential impacts in the future. Modelling should be based on scientific knowledge. Only a sufficiently good forecast will help to focus on management actions for maximum benefit.
We provide the following expertise:
Solid practical experience
In this thesis factors causing the pollution were investigated in two coeval active sulphide mine sites in Finland: the Hitura Ni mine and the Luikonlahti Cu-Zn-Co-Ni mine and talc processing plant.
Studies include comprehensive hydrogeochemical characterisation of tailings seepages, surrounding aquifers and surface waters. Detailed and spatial mineralogical and geochemical studies were employed to assess the geochemical processes within the tailings responsible for the low quality mine drainage from the impoundments. Based on the results, observations pertinent to future assessment and mine drainage prevention from existing and future mine sites are presented.
Contaminative drainage from mine sites, and particularly from mine waste deposits, may pose risks to surface waters. Therefore, mine site risk assessment and management require knowledge of the whole series of processes from mine drainage formation to contaminant transport and the eventual ecological effects. The paper summarizes some of the recent studies by the Geological Survey of Finland covering these issues.
Chief Scientist Tommi Kauppila, tommi.kauppilagtk.fi
Environmental Geologist Maria Nikkarinen, maria.nikkarinengtk.fi