Research Article
Estimation of Groundwater Quality in Arid Region or Semiarid Region by Using Statistical Methods and Geographical Information System Technique
Table 4
Diverse water quality characteristics weight and relative weight.
| A chemical metric | Weight () | Weighted average () | WHO (2004) S |
| pH | 4 | 0.072 | 9.6 | TDS (mg/L) | 6 | 0.118 | 1100 | Cl- (mg/L) | 6 | 0.118 | 225 | TH (mg/L) | 3 | 0.046 | 500 | Ca2+ (mg/L) | 4 | 0.072 | 80 | Mg2+ (mg/L) | 4 | 0.072 | 35 | HCO3- (mg/L) | 4 | 0.072 | 360 | Na (mg/L) | 6 | 0.012 | 210 | K (mg/L) | 3 | 0.046 | 25 | SO4 (mg/L) | 6 | 0.012 | 210 | F (mg/L) | 6 | 0.012 | 1 | NO3- | 4 | 0.03 | 60 | | | | |
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