Table 1.
Physicochemical characteristics of the bulk water samples.
| CW | TW | MW | SW1 | SW2 | |
|---|---|---|---|---|---|
| GENERAL CHARACTERISTICS | |||||
| pH | 7.91 | 6.53 | 6.2 | 6.66 | 6.5 |
| Conductivity (μS cm−1) | 227 | 1500 | 2151 | 13 | 13 |
| Temperature (°C) | 17.30 | 22.98 | 18 | 18.49 | 20 |
| DO (mg O2 l−1) | 12.52 | 3.62 | 9.1 | 12.11 | 12.11 |
| CHEMICAL CHARACTERISTICS | |||||
| Total P (μg l−1) | 63.72 | 1.48 | 77.6 | 10.64 | 10.64 |
| PO4-P (μg P l−1) | 2.28 | 0.19 | 2.3 | 2.31 | 2.31 |
| NH+4-N(μg N l−1) | 122.65 | 1600 | 829.5 | 25.1 | 25.1 |
| NO2-N (μg N l−1) | 0.51 | 12.53 | 161.3 | 0.2 | 0.2 |
| NO3-N (μg N l−1) | 6.0 | 13.33 | 3103.8 | 4.57 | 4.57 |
CW, water from Carrapatos stream; TW, water from Tulipa stream; MW, water from Mina stream; SW1 and SW2, water from sites 1 and 2 of the non-impacted mining stream.