Figure 2From: Proposal for environmental mixture risk assessment in the context of the biocidal product authorization in the EUToxic Unit (TU) based approach for environmental risk assessment of biocide products. PEC = Predicted Environmental Concentration, PNEC = Predicted No Effect Concentration, RQProd = Risk Quotient for the Product, TU = Toxic Unit, IF = Interaction Factor, IA = Independent Action, n = number of compounds in the mixture, AF = Assessment Factor.Back to article page