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disse test er også nødvendige til beregning af den forventede miljøkoncentration af moderstoffet ved risikovurderingen.
these tests will also be necessary for calculating the predicted environmental concentrations of the parent substance for risk assessment.
• gennem forskellige kontrolforanstaltninger er det lykkedes at reducere risikoen og visse typer af emissioner. desuden er miljøkoncentrationen af persistente organiske stoffer og tungmetaller faldende.
hazardous substances ' various control measures have reduced chemical risk and some emissions, and environmental concentrations of persistent organic pollutants and heavy metals are declining.