| 2011-high flow period | 2011-low flow period | ||||||
Prok. | Lak. | Svr. | Gabr. | Prok. | Lak. | Svr. | Gabr. | |
Dissolved O2, mg/L | 7.62 | 9.05 | 8.22 | 9.30 | 6.00 | 8.12 | 6.35 | 8.00 |
pH | 7.42 | 7.92 | 7.77 | 7.86 | 7.64 | 8.00 | 7.88 | 7.96 |
COD, mgO2/L | 9.788 | 10.610 | 3.212 | 8.692 | 18.009 | 5.678 | 3.760 | 11.158 |
N-NH4, mg/L | 0.250 | 0.331 | 0.488 | 0.474 | 2.100 | 0.258 | 0.234 | 0.156 |
N-NO2, mg/L | 0.149 | 0.233 | 0.191 | 0.186 | 0.191 | 0.050 | 0.026 | 0.026 |
N-NO3, mg/L | 1.311 | 2.793 | 2.724 | 2.807 | 3.167 | 3.456 | 3.488 | 3.831 |
P-PO4, mg/L | 0.388 | 0.296 | 0.332 | 0.326 | 0.691 | 0.967 | 0.512 | 0.496 |
| 2012-high flow period | 2012-low flow period | ||||||
Prok. | Lak. | Svr. | Gabr. | Prok. | Lak. | Svr. | Gabr. | |
Dissolved O2, mg/L | 6.99 | 9.68 | 7.57 | 9.36 | 5.98 | 8.80 | 8.76 | 8.37 |
pH | 7.49 | 8.30 | 7.85 | 8.18 | 7.41 | 8.10 | 7.90 | 7.84 |
COD, mgO2/L | 3.351 | 11.223 | 6.240 | 8.821 | 13.351 | 7.870 | 9.240 | 9.788 |
N-NH4, mg/L | 1.300 | 0.523 | 0.397 | 0.234 | 2.832 | 0.843 | 2.002 | 2.133 |
N-NO2, mg/L | 0.211 | 0.225 | 0.167 | 0.096 | 0.121 | 0.060 | 0.046 | 0.039 |
N-NO3, mg/L | 1.355 | 1.941 | 2.030 | 2.183 | 2.607 | 2.756 | 1.922 | 1.788 |
P-PO4, mg/L | 0.229 | 0.242 | 0.255 | 0.257 | 0.291 | 0.280 | 0.216 | 0.213 |
| 2013-high flow period | 2013-low flow period | ||||||
Prok. | Lak. | Svr. | Gabr. | Prok. | Lak. | Svr. | Gabr. | |
Dissolved O2. mg/L | 7.45 | 9.50 | 8.40 | 9.34 | 7.50 | 9.93 | nd | 9.94 |
pH | 7.45 | 7.68 | 7.68 | 7.61 | 7.72 | 7.97 | nd | 8.01 |
COD. mgO2/L | 6.500 | 10.062 | 20.932 | 14.721 | 10.020 | 10.555 | nd | 10.488 |
N-NH4. mg/L | 1.143 | 0.461 | 0.373 | 0.362 | 4.184 | 1.363 | nd | 0.796 |
N-NO2. mg/L | 0.082 | 0.132 | 0.134 | 0.147 | 0.173 | 0.302 | nd | 0.298 |
N-NO3. mg/L | 0.922 | 2.195 | 2.807 | 3.080 | 2.737 | 4.538 | nd | 4.958 |
P-PO4. mg/L | 0.347 | 0.371 | 0.393 | 0.401 | 0.232 | 0.231 | nd | 0.213 |