Table 3. pH, hydrogen peroxide and nitrate nitrite concentrations in SDW exposed for 10 min to nanosecond pulsed DBD, 1 and 3 h after treatment.

	pH	Hydrogen peroxide [mg/l]	Nitrates [mg/l]
Untreated solution	5,5±0,1	0	0
1 h delay time	2,78±0,47	22±0,24	121,4±25,9
3 h delay time	2,78±0,47	21,1±0,47	126±2,3