Fig. 4From: Estrogenic activity in drainage water: a field study on a Swiss cattle pastureOestrogenic activity in water samples taken at “Shaft”: EEQ ER-CALUX (red line), YES (blue line), precipitation (hanging columns, right y-axis), and field campaigns (FC). Error of ER-CALUX and standard deviation of YES are indicated by error bars. Sampling interval was 4 hBack to article page