Table 1.
Characteristics of bacterial indices and physicochemical parameters of water samples from Jinhe River
| Season | Variation range | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| HPC (CFU/ml) | TC (CFU/100 ml) | FC (CFU/100 ml) | T (°C) | pH | Turbidity (NTU) | CODMn (mg/L) | NH3-N (mg/L) | Conductivity (μs/cm) | |
| Spring | 4.0 × 102 −1.56 × 104 | 7.5 × 102 − 1.6 × 104 | 1.0 × 102 -3.5 × 103 | 8.7–21 | 6.00–6.70 | 2.42–15.77 | 4.54–14.61 | 0.54–5.43 | 550–643 |
| Summer | 3.5 × 103 −2.8 × 105 | 1.0 × 102 −5.5 × 104 | 2.7 × 102 -3.8 × 104 | 26.5–32 | 6.00–6.90 | 6.55–29.23 | 8.93–22.40 | 0.80–9.54 | 514–647 |
| Autumn | 6.5 × 102 −4.5 × 105 | 2.5 × 102 -1.1 × 105 | 1.8 × 103 -6.7 × 104 | 6.3–27 | 6.00–7.40 | 4.07–24.23 | 9.53–22.30 | 1.54–7.53 | 605–828 |
| Winter | 5.5 × 101 −2.9 × 103 | 5.0 × 102 -1.7 × 104 | 2 × 104 -2.0 × 104 | 2–6.4 | 6.40–7.40 | 2.63–7.93 | 2.50–10.98 | 0.54–3.56 | 624–868 |
| PA DEP reference values | 5.0 × 103 | 2.0 × 102 | |||||||
Abbreviations: HPC heterotrophic plate counts, TC total coliforms, FC fecal coliform, T water temperature, NTU nephelometric turbidity unit, CODMn chemical oxygen demand, NH3-N ammonium content