Figure 2

Concentration–response curves for NEC derivation. Bayesian non-linear gaussian model fit on the proportional decline in 3-day specific growth rate (SGR) relative to the control treatment (solid black line) and 95% confidence intervals (black dashed line) to derive the no effect concentration (NEC) (red line) and 95% confidence interval (red dashed line) of (a) Diuron; (b) Propazine; (c) Tebuthiuron. All concentrations in µg L−1.