Spatial and Temporal Variations of Water Quality of Mateur Aquifer (Northeastern Tunisia): Suitability for Irrigation and Drinking Purposes

Table 3

Weight and relative weight of chemical parameters used for WQI computation.

Salinity	1500	5	0.152
Bicarbonates		1	0.030
Chlorides	400	5	0.152
Sulfates	400	5	0.152
Nitrates	50	5	0.152
Calcium	300	3	0.091
Magnesium	150	3	0.091
Sodium	200	4	0.121
Potassium		2	0.061
		Total  = 33	Total  = 1