Fig. 5From: Determination of biomarkers threshold values and illustration of their use for the diagnostic in large-scale freshwater biomonitoring surveysConcentrations of the PO-related peptides VPAILESFPGR (A) and APILEGYFSK (B) quantified in gammarids caged up- and down-stream the WWTPs of Bouillon and Namur. Red lines represent the inhibition thresholds defined for the two peptides while green line represents the induction threshold for APILEGYFSKBack to article page