Quality category | na | TP loading rate (g m−2 year−1) | TP removal rate (g m−2 year−1) | TP removal efficiency (%) | |||
---|---|---|---|---|---|---|---|
Av. ± 1SE (range) | Median | Av. ± 1SE (range) | Median | Av. ± 1SE (range) | Median | ||
2 and 3 | 146 | 36 ± 73 (0.03–373) | 3.2 | 13 ± 38 (−16.8–240) | 1.2 | 41 ± 52 (−422–99) | 50 |
2 | 85 | 54 ± 83 (0.08–373) | 14 | 19 ± 46 (−16.8–240) | 2.9 | 39 ± 60 (−422–98) | 51 |
3 | 61 | 10 ± 43 (0.03–307) | 1.4 | 4 ± 18 (−7.3–133) | 0.63 | 44 ± 38 (−104–99) | 49 |