Table 3.

Detection of DNA damages via PCR experiments.

	Sampling campaign 1			Sampling campaign 2
	176 bp amplicon	490 bp amplicon	880 bp amplicon	176 bp amplicon	490 bp amplicon	880 bp amplicon
Control	1.0	1.0	1.0	1.0	1.0	1.0
UV treatment	0.62	0.69	0.47	0.21	0.99	0.98
Ozone treatment	1.5	0.76	1.0	0.11	0.71	0.93
Combination	0.92	0.87	0.76	0.1	0.23	0.36

The quantified light units of the different treatments are normalized to the corresponding amplicon of the conventionally treated wastewater (control). The amplicons were separated by agarose gel electrophoresis and the light units (LU) of each amplicon were determined and normalized to their corresponding amplicon of the untreated wastewater sample.