Table 1
Ranges encountered for physical and chemical parameters in Lake Lugano throughout the studied period 2015–2016 (SD: standard deviation, min: minimum, max: maximum). Turbid: turbidity, NH4: ammonia, N-NO3: nitrates, TN: total nitrogen, DRP: dissolved reactive phosphorus, TP: total phosphorus, Cond.: conductivity, Water Temp.: water temperature, DO: dissolved oxygen, Secchi: Secchi transparency, Chlor a: phytoplanctonic chlorophyll a concentration, SP: sampling point.
| SP1 | SP2 | |||||
|---|---|---|---|---|---|---|
|
|
|
|||||
| Mean | SD | Min–max | Mean | SD | Min–max | |
| Turbid (NTU) | 52.1 | 52.26 | 3–184 | 45.84 | 32.62 | 3–97 |
| NH4 (mg L−1) | 0.40 | 0.72 | 0–2.08 | 0.73 | 0.77 | 0–2.24 |
| N-NO3 (mg L−1) | 0.10 | 0.22 | 0–0.7 | 0.14 | 0.23 | 0–0.7 |
| TN (mg L−1) | 1.84 | 0.66 | 1.32–3.84 | 1.91 | 0.34 | 1.32–2.4 |
| DRP (mg L−1) | 0.83 | 0.34 | 0.33–1.56 | 0.78 | 0.24 | 0.35–1.2 |
| TP (mg L−1) | 1.26 | 0.44 | 0.60–2.16 | 1.35 | 0.38 | 0.84–1.92 |
| pH | 8.79 | 0.41 | 8.15–9.50 | 8.35 | 0.36 | 8–9 |
| Cond (µS cm−1) | 1459.75 | 262.97 | 1130–1860 | 1534.83 | 334.91 | 1060–2200 |
| Water temp (°C) | 18.07 | 6.29 | 10.20–28.30 | 18.44 | 5.79 | 10.60–27.60 |
| DO (mg L−1) | 12.16 | 4.44 | 4.98–20.65 | 7.77 | 3.27 | 0.21–11.2 |
| Secchi (cm) | 29.83 | 13.94 | 16–57 | 30.88 | 11.13 | 19–52 |
| Chlor a (µg L−1) | 98.56 | 70.91 | 1.53–235.31 | 108.70 | 74.45 | 0.51–210.25 |
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