Figure 4: Comparison of passive sampler-derived versus actively measured dissolved PFAS concentrations from 24-hour composite grab sample at Bucklin Point after 29 days.
Dissolved concentrations (Cderived) at Bucklin Point were derived from the 3 passive samplers deployed for 29 days using Rs derived from Field’s Point WWTP. Across three replicates at 29 days: Cw,derived = 1.0 Cw,meas; r2 = 0.53; root mean standard error 0.82 (n=48).