Table 2 Distribution of levels of physicochemical parameter percentiles when compared to standard categories
Parameter | Percentile | Range (min-max) | Standard range [29] | Description [29] |
|---|---|---|---|---|
Salinity (ppm) | ≤ 33% | 107.0–245.0 | < 500 | Fresh water |
≥ 67% | 576.9–1190.0 | ≥ 500 | Polluted water | |
Temperature (°C) | ≤ 33% | 24.5–30.4 | < 35 | Normal temperature |
≥ 67% | 36.6–42.8 | ≥ 35 | Hot | |
Total dissolved solids (ppm) | ≤ 33% | 131.0–289.0 | < 400 | Mineral springs |
≥ 67% | 701.0–1450.0 | ≥ 400 | High contamination | |
Conductivity (μS) | ≤ 33% | 200.0–411.0 | < 800 | Domestic water |
≥ 67% | 1007.0–1970.0 | ≥ 800 | Highly polluted | |
pH | ≤ 33% | 7.0–7.9 | 7 | Neutral |
≥ 67% | 8.4–11.0 | 11 | Weak basic |