Guidance for deriving Dutch Environmental Risk Limits from EU-Risk Assessment Reports of existing substances

In this report the methodology is given for deriving Dutch environmental risk limits for which EU risk assessment reports (EU-RARs) are available in the context of Council Regulation (EEC) No 793/93 on the evaluation and control of the risks of existing substances. Presented here are the minimum requirements for reporting the derivation of risk limits, along with an overview of proposed environmental risk limits based on EU-RAR results. This report also documents the differences between the European 'predicted no effect concentrations' (PNECs) and the Dutch environmental risk limits (MPCs), indicating how PNECs can be used to calculate these environmental risk limits.