Table 1 WQI estimates and statistical... | Emerald Publishing

Table 1

WQI estimates and statistical parameters of water quality classification for the Canadian model (Equ. 1) and the proposed model (Equ. 2)

Years	WQI	Category	SAAR-WQI	Category
1976	75.61	Fair	81.17	Good
1982	82.15	Good	79.02	Fair
1991	81.03	Good	75.81	Fair
1999	83.38	Good	72.98	Fair
2003	66.48	Fair	71.56	Fair
2007	62.06	Marginal	70.15	Fair
2012	65.96	Fair	68.39	Fair
2020	69.53	Fair	65.58	Fair
Average	73.28		73.08
Max	83.38		81.17
Min	62.06		65.58
Std. Deviation	8.33		5.31
Std. Error	2.95		1.88

Years	WQI	Category	SAAR-WQI	Category
1976	75.61	Fair	81.17	Good
1982	82.15	Good	79.02	Fair
1991	81.03	Good	75.81	Fair
1999	83.38	Good	72.98	Fair
2003	66.48	Fair	71.56	Fair
2007	62.06	Marginal	70.15	Fair
2012	65.96	Fair	68.39	Fair
2020	69.53	Fair	65.58	Fair
Average	73.28		73.08
Max	83.38		81.17
Min	62.06		65.58
Std. Deviation	8.33		5.31
Std. Error	2.95		1.88

Source(s): Table by authors