Fig. 6. Particulate P concentration versus particle concentration in the effluent at single storm events. (a) Data from this study and (b) regressions from this study with additional data: Silstrup and Estrup from Kjaergaard and de Jonge (2005), Røgen_field from de Jonge et al. (2004a), and regression from Laubel et al. (1999). Regression to BG (2): y = 0.0032x, R² = 0.93, n = 60; regression to SL1+ (1): y = 0.0058x, R² = 0.97, n = 19.