Table 10.
Comparison of the determined average concentrations of pollutants analyzed in the outflow from the residential area and the residential–commercial area.
Parameter | Unit | Concentration in Outlet O1 | Concentration in Outlet O2 | O1/O2 Concentration Ratio |
---|---|---|---|---|
TSS | mg/L | 45 | 164 | 3.6 |
COD | mg/L | 37.7 | 108.5 | 2.9 |
TKN | mg/L | 1.558 | 1.879 | 1.2 |
N–NO3 | mg/L | 0.384 | 0.752 | 2.0 |
N–NO2 | mg/L | 0.158 | 0.210 | 1.3 |
TN | mg/L | 2.941 | 3.353 | 1.1 |
TP | mg/L | 0.535 | 0.661 | 1.2 |
HOI | mg/L | 0.36 | 0.90 | 2.5 |
Zn | mg/L | 0.400 | 0.547 | 1.4 |
Cu | mg/L | 0.0300 | 0.0685 | 2.3 |
Hg | mg/L | 0.0003 | 0.0004 | 1.5 |
PAHs | µg/L | 0.1689 | 0.6438 | 3.8 |