Table 3 The range of limit values of the parameters used in the computation of quality measurement.
Qi | SAR | EC (µs/cm) | HCO3- (meq/L) | Na+ (meq/L) | Cl- (meq/L) | HCO3- (meq/L) |
|---|---|---|---|---|---|---|
0–35 | SAR > 2 or SAR ≥ 12 | EC < 200 or EC ≥ 3000 | HCO3 <1 or HCO3 ≥ 8.5 | Na < 2 or SAR ≥ 9 | Cl < 1 or Cl ≥ 10 | HCO3 < 1 or HCO3≥8.5 |
35–60 | 6 ≤ EC < 12 | 1500 ≤ EC < 3000 | 4.5 ≤ HCO3 <8.5 | 6 ≤ Na < 9 | 7 ≤ Cl < 10 | 4.5 ≤ HCO3 <8.5 |
60–85 | 3 ≤ EC < 6 | 750 ≤ EC < 1500 | 1.5 ≤ HCO3<4.5 | 3 ≤ Na < 6 | 4 ≤ Cl < 7 | 1.5 ≤ HCO3<4.5 |
85–100 | 2 ≤ EC < 3 | 200 ≤ EC < 750 | 1 ≤ HCO3<1.5 | 2 ≤ Na < 3 | 1 ≤ Cl < 4 | 1 ≤ HCO3<1.5 |
