Prossesskjemikalier fra mineralutvinning og eventuelt opptak i fisk

Summary

The purpose of this report is to present a methodology to analyze some of the most relevant mining reagents used currently in Norwegian mining operations as well as to provide an assessment of the potential of bioaccumulation of these chemicals and their degradation products in fish. The study covers three families of substances: acrylamide (monomer of the production of polyacrylamide, frequently used in coagulation/flocculation of tailings), esterquats (focusing on methyltriethanolammonium, degradation product of common cationic esterquat-type frothers) and alkylphosphoric acids (anionic frothers). The analytical procedure developed here targets the detection of the substances in cod and in salmon.