Table 4 Statistical overview of groundwater physicochemical parameters in Hennaya plain.
Parameters | Min | Max | Mean | Standard Deviation | Coefficient of Variation (%) | |||||
|---|---|---|---|---|---|---|---|---|---|---|
Dry | Wet | Dry | Wet | Dry | Wet | Dry | Wet | Dry | Wet | |
T (°C) | 14.5 | 16.2 | 20.6 | 23.7 | 18. 5 | 19.25 | 1.92 | 2.18 | 10.38 | 11.32 |
pH | 7.15 | 7.12 | 8.41 | 7.68 | 7.63 | 7.31 | 0.38 | 0.15 | 5.04 | 2.05 |
TDS (mg.L−1) | 1093.56 | 1060.02 | 1443 | 1281.5 | 1272.18 | 1166.11 | 93.92 | 61.51 | 7.38 | 5.27 |
EC (µS.cm−1) | 1402 | 1359 | 1850 | 1643 | 1631 | 1495 | 120.41 | 78.86 | 7.38 | 5.27 |
Na+ (mg.L−1) | 139.55 | 113.30 | 450.6 | 150.66 | 217.15 | 135.09 | 53.53 | 10.71 | 24.65 | 7.92 |
Ca2+ (mg.L−1) | 110.64 | 112.20 | 228.02 | 247.25 | 140.75 | 142.3 | 17.66 | 19.47 | 12.54 | 13.68 |
Mg2+ (mg.L−1) | 52.34 | 52.6 | 96.48 | 98.45 | 80.3 | 77.36 | 8.53 | 10.01 | 10.62 | 12.93 |
Cl− (mg.L−1) | 133.56 | 130.25 | 915.2 | 545.6 | 303.53 | 263.42 | 188.62 | 89.5 | 62.14 | 37.86 |
SO42− (mg.L−1) | 83 | 84.57 | 181.65 | 178.77 | 120.5 | 119.6 | 23.49 | 22.88 | 19.5 | 19.13 |
HCO3− (mg.L−1) | 345.51 | 351.21 | 552.21 | 550.25 | 442.69 | 439.53 | 64.78 | 63.13 | 14.63 | 14.37 |
NO3−–N (mg.L−1) | 12.79 | 22.14 | 45.56 | 49.08 | 24.06 | 32.36 | 6.94 | 5.99 | 28.86 | 18.51 |
