Division 7

All of the aquatic toxicity data shall be used when developing a proposal for environmental quality standards (Annual Average EQS, AA-EQS; Maximum Acceptable Concentration EQS, MAC-EQS). The methodology for derivation of these endpoints is outlined in the ‘Technical Guidance for Deriving Environmental Quality Standards^f1’ for the Water Framework Directive 2000/60/EC of the European Parliament and of the Council^f2.