| Water quality parameter |
Location/Measurement station |
Tolerance value |
| River |
Coastal |
| Temperature (°C) |
26.77 ± 17.94 |
28.56 ± 2.72 |
20 – 32 |
| Salinity (o/oo) |
17.95 ± 3.79 |
30.90 ± 4.01 |
5 – 34 |
| DO (mg/l) |
6.02 ± 0.86 |
5.89 ± 1.41 |
≥ 3 |
| pH |
7.77 ± 0.42 |
8.06 ± 0.40 |
6.5 – 8.5 |
| BOD5 (mg/l) |
1.32 ± 0.80 |
0.74 ± 0.27 |
< 25 |
| TSS (mg/l) |
60.44 ± 9.35 |
58.17 ± 22.18 |
25 – 80 |
| BOT (mg/l) |
26.04 ± 5.73 |
18.77 ± 5.64 |
- |
| Turbidity (NTU) |
21.41 ± 4.41 |
14.42 ± 17.63 |
≤ 30 |
| NH3-N (mg/l) |
0.1101 ± 0.0812 |
0.2636 ± 0.3303 |
≤ 1.0 |
| NO2-N (mg/l) |
0.0251 ± 0.0073 |
0.2483 ± 0.5690 |
0.25 |
| NO3-N (mg/l) |
0.0924 ± 0.1241 |
0.0111 ± 0.0140 |
- |
| PO4-P (mg/l) |
0.0053 ± 0.0036 |
0.0582 ± 0.0647 |
0.05 – 0.50 |
|
