fig5

Figure 5. Influence of municipal wastewaters on the peroxidase toxicity in the presence of DNA. The Perotox assay was tested on municipal influents and effluents in the presence of DNA (A) with detergent peroxidation (B). The formation rate of CIII (C; 418 nm), the DNA protection index (D), and the formation of acid-soluble DNA (E) were determined. The control represents the PER assay in the presence of the vehicle (ethanol). The data are expressed as the mean with the standard error. The star symbol * indicates significance relative to the controls. Perotox: Peroxidase-toxicity; PER: peroxidase.