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| Dataset region | Max occur. (%) | N sample |
|---|---|---|
| Northern Quebec (QUE) | 12.60 | 25 |
| Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) | 8.85 | 16 |
| Pechora River, Russia (PEC) | 6.72 | 10 |
| Taimyr Peninsula, Russia (TAI) | 6.37 | 12 |
| Labrador, Canada (LAB) | 2.80 | 14 |
| Northern Sweden (SWE) | 2.51 | 2 |
| Abisko, Sweden (ABK) | 1.67 | 2 |
| Lena River, Russia (LEN) | 1.25 | 3 |
| Yellowknife area, Northwest Territories, Canada (YEL) | 0.56 | 1 |
| Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) | 0.40 | 4 |
| Parameter (unit) | Average | Maximum | Minimum | N sample |
|---|---|---|---|---|
| ALK (mg/L CaCO3) | 6.56 | 10.37 | 2.75 | 2 |
| ALK (mekv/L) | 0.11 | 0.17 | 0.04 | 2 |
| Ca (meq/L) | 0.06 | 0.11 | 0.03 | 3 |
| Ca (mg/L) | 4.83 | 13.50 | 0.00 | 3 |
| CHLa-C (ug/L) | 0.50 | 0.50 | 0.50 | 1 |
| CHLa-U (ug/L) | 0.80 | 0.80 | 0.80 | 1 |
| Cl (mg/L) | 1.87 | 4.80 | 0.00 | 3 |
| Cl (meq/L) | 0.02 | 0.02 | 0.01 | 3 |
| COND (uS/cm) | 20.84 | 100.00 | 0.02 | 5 |
| DIC (mg/L) | 12.10 | 12.10 | 12.10 | 1 |
| DIST (km) | -120.00 | -120.00 | -120.00 | 1 |
| DO (mg/L) | 14.00 | 14.00 | 14.00 | 1 |
| DOC (mg/L) | 6.70 | 13.40 | 1.10 | 3 |
| Fe (ug/L) | 36.60 | 36.60 | 36.60 | 1 |
| K (meq/L) | 0.01 | 0.01 | 0.01 | 3 |
| K (mg/L) | 0.75 | 1.95 | 0.00 | 3 |
| Mg (mg/L) | 0.07 | 0.13 | 0.00 | 2 |
| Mg (meq/L) | 0.03 | 0.07 | 0.01 | 3 |
| Mn (ug/L) | 4.00 | 4.00 | 4.00 | 1 |
| Na (meq/L) | 0.03 | 0.05 | 0.02 | 3 |
| Na (mg/L) | 1.68 | 4.66 | 0.00 | 3 |
| NH3 (ug/L) | 1.00 | 1.00 | 1.00 | 1 |
| NO2 (ug/L) | 2.00 | 2.00 | 2.00 | 1 |
| NO3 (ug/L) | 10.00 | 10.00 | 10.00 | 1 |
| pH | 6.80 | 8.50 | 6.19 | 6 |
| PN (ug/L) | 60.00 | 60.00 | 60.00 | 1 |
| POC (ug/L) | 488.00 | 488.00 | 488.00 | 1 |
| POC:PN | 8.13 | 8.13 | 8.13 | 1 |
| Si (mg/L) | 1.85 | 3.02 | 0.68 | 2 |
| SiO2 (mg/L) | 0.41 | 0.41 | 0.41 | 1 |
| SO4 (mg/L) | 1.18 | 2.10 | 0.00 | 3 |
| SO4 (meq/L) | 0.03 | 0.03 | 0.03 | 3 |
| SRP-U (ug/L) | 0.60 | 0.60 | 0.60 | 1 |
| TEMP (°C) | 9.13 | 14.50 | 6.40 | 6 |
| TKN-U (ug/L) | 352.00 | 352.00 | 352.00 | 1 |
| TN (ug/L) | 425.00 | 425.00 | 425.00 | 1 |
| TN:TP | 44.74 | 44.74 | 44.74 | 1 |
| TOC (mg/L) | 5.63 | 14.90 | 0.30 | 3 |
| TP-F (ug/L) | 5.20 | 5.20 | 5.20 | 1 |
| TP-U (ug/L) | 9.50 | 9.50 | 9.50 | 1 |
| ZOOPL (ug/L) | 1464.04 | 1464.04 | 1464.04 | 1 |
