Table 1.

Summary of the physicochemical characteristics of filter influents.

	Before ozone implementation	After ozone implementation
	Autumn 2017	Winter 2017–2018	Spring 2018	Summer 2018	Autumn 2018
Temperature	15.19 ± 6.63	1.64 ± 0.76	9.06 ± 7.65	23.62 ± 1.73	14.62 ± 8.15
pH	9.43 ± 0.16	9.37 ± 0.15	9.20 ± 0.01	9.27 ± 0.06	9.30 ± 0.10
TOC (mg/L)	1.81 ± 0.56	1.66 ± 0.47	1.99 ± 0.20	1.73 ± 0.68	1.61 ± 0.06
TN (mg/L)	0.64 ± 0.13	1.75 ± 0.71	1.22 ± 0.08	0.73 ± 0.22	0.60 ± 0.16
AOC (ug/L)	82.75 ± 15.26	207.36 ± 50.67	232.49 ± 71.40	225.36 ± 30.64	224.41 ± 52.60