Figure 4.

Spatiotemporal percentile plots of PEC_max surface water (A) and LP₅₀ values (B). Columns represent individual reaches; rows represent the 20 years in the assessment period. First, PEC_max and LP₅₀ are sorted within reaches in descending and ascending order, respectively (i.e., highest PEC_max and lowest LP₅₀ at the bottom). Next, reaches are sorted along the x-axis such that the reaches with the highest PEC_max and lowest LP₅₀ value in a year are located in the bottom left corner. No exposure (A) indicates reaches that have no exposure during the 20 year period; effect free year and no effect (B) indicate reaches where no fit of the LP₅₀ value was possible or where no exposure occurs, respectively. Results were based on simulation with 75% drift reduction and a 10 m buffer as mitigation options.