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| Dataset region | Max occur. (%) | N sample |
|---|---|---|
| Labrador, Canada (LAB) | 11.80 | 23 |
| Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) | 6.25 | 19 |
| Pechora River, Russia (PEC) | 5.81 | 11 |
| Taimyr Peninsula, Russia (TAI) | 2.08 | 2 |
| Lena River, Russia (LEN) | 1.93 | 2 |
| Northern Sweden (SWE) | 0.79 | 4 |
| Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) | 0.66 | 2 |
| Yellowknife area, Northwest Territories, Canada (YEL) | 0.26 | 1 |
| Parameter (unit) | Average | Maximum | Minimum | N sample |
|---|---|---|---|---|
| ALK (mg/L CaCO3) | 6.36 | 14.15 | 1.40 | 4 |
| ALK (mekv/L) | 0.10 | 0.23 | 0.02 | 4 |
| Ca (meq/L) | 0.19 | 0.26 | 0.12 | 2 |
| Ca (mg/L) | 2.52 | 5.20 | 0.00 | 5 |
| CHLa-C (ug/L) | 0.20 | 0.20 | 0.20 | 1 |
| CHLa-U (ug/L) | 0.40 | 0.40 | 0.40 | 1 |
| Cl (mg/L) | 0.56 | 1.13 | 0.00 | 5 |
| Cl (meq/L) | 0.03 | 0.03 | 0.03 | 2 |
| COND (uS/cm) | 9.06 | 30.00 | 0.08 | 4 |
| DIC (mg/L) | 3.50 | 3.50 | 3.50 | 1 |
| DIST (km) | -55.00 | -55.00 | -55.00 | 1 |
| DO (mg/L) | 13.57 | 13.57 | 13.57 | 1 |
| DOC (mg/L) | 4.70 | 4.70 | 4.70 | 1 |
| Fe (ug/L) | 17.50 | 17.50 | 17.50 | 1 |
| K (meq/L) | 0.01 | 0.02 | 0.01 | 2 |
| K (mg/L) | 0.35 | 0.74 | 0.00 | 5 |
| Mg (mg/L) | 0.16 | 0.41 | 0.00 | 4 |
| Mg (meq/L) | 0.03 | 0.03 | 0.02 | 2 |
| Mn (ug/L) | 3.00 | 3.00 | 3.00 | 1 |
| Na (meq/L) | 0.04 | 0.04 | 0.03 | 2 |
| Na (mg/L) | 0.49 | 0.87 | 0.00 | 5 |
| NH3 (ug/L) | 6.00 | 6.00 | 6.00 | 1 |
| NO2 (ug/L) | 2.00 | 2.00 | 2.00 | 1 |
| NO3 (ug/L) | 10.00 | 10.00 | 10.00 | 1 |
| pH | 6.95 | 8.70 | 5.80 | 6 |
| PN (ug/L) | 58.00 | 58.00 | 58.00 | 1 |
| POC (ug/L) | 390.00 | 390.00 | 390.00 | 1 |
| POC:PN | 6.72 | 6.72 | 6.72 | 1 |
| SiO2 (mg/L) | 0.61 | 0.61 | 0.61 | 1 |
| SO4 (meq/L) | 0.05 | 0.06 | 0.05 | 2 |
| SO4 (mg/L) | 1.09 | 2.64 | 0.00 | 5 |
| SRP-U (ug/L) | 0.60 | 0.60 | 0.60 | 1 |
| TEMP (°C) | 12.35 | 14.20 | 10.90 | 4 |
| TKN-U (ug/L) | 176.00 | 176.00 | 176.00 | 1 |
| TN (ug/L) | 247.00 | 247.00 | 247.00 | 1 |
| TN:TP | 63.33 | 63.33 | 63.33 | 1 |
| TOC (mg/L) | 2.90 | 5.30 | 0.50 | 2 |
| TP-F (ug/L) | 2.30 | 2.30 | 2.30 | 1 |
| TP-U (ug/L) | 3.90 | 3.90 | 3.90 | 1 |
| ZOOPL (ug/L) | 2015.32 | 2015.32 | 2015.32 | 1 |
