Fig. 1

The normalized filtration rates (dimensionless) of Corbicula sp. after 5 and 10 weeks of exposure with PAC_native and PAC_WWTP. Depicted bars are means (n = 5) with corresponding standard deviations. Bars below the line (= 1) indicate a lower filtration rate and bars above the line a higher filtration rate, respectively, as compared to the initial rate before exposure start. No significant differences (p < 0.05) between bivalves of the exposed groups compared to the controls were detected