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| Dataset region | Max occur. (%) | N sample |
|---|---|---|
| Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) | 5.32 | 19 |
| Taimyr Peninsula, Russia (TAI) | 2.68 | 5 |
| Lena River, Russia (LEN) | 2.50 | 10 |
| Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) | 1.97 | 40 |
| Abisko, Sweden (ABK) | 1.67 | 10 |
| Northern Quebec (QUE) | 1.60 | 6 |
| Pechora River, Russia (PEC) | 1.27 | 6 |
| Northern Sweden (SWE) | 1.07 | 5 |
| Yellowknife area, Northwest Territories, Canada (YEL) | 0.58 | 3 |
| Parameter (unit) | Average | Maximum | Minimum | N sample |
|---|---|---|---|---|
| ALK (mg/L CaCO3) | 4.21 | 6.41 | 2.68 | 5 |
| ALK (mekv/L) | 0.07 | 0.10 | 0.04 | 5 |
| Ca (meq/L) | 0.12 | 0.41 | 0.05 | 15 |
| Ca (mg/L) | 2.85 | 13.50 | 0.60 | 8 |
| CHLa-C (ug/L) | 0.43 | 0.60 | 0.20 | 3 |
| CHLa-U (ug/L) | 0.70 | 0.80 | 0.60 | 3 |
| Cl (mg/L) | 1.38 | 4.80 | 0.50 | 8 |
| Cl (meq/L) | 0.03 | 0.05 | 0.02 | 15 |
| COND (uS/cm) | 6.82 | 100.00 | 0.02 | 22 |
| DIC (mg/L) | 4.20 | 12.10 | 0.20 | 3 |
| DIST (km) | 59.17 | 155.00 | -120.00 | 3 |
| DO (mg/L) | 13.05 | 14.00 | 12.30 | 4 |
| DOC (mg/L) | 2.82 | 5.60 | 1.70 | 13 |
| Fe (ug/L) | 47.00 | 53.10 | 36.60 | 3 |
| K (meq/L) | 0.01 | 0.02 | 0.00 | 15 |
| K (mg/L) | 0.60 | 1.95 | 0.23 | 8 |
| Mg (mg/L) | 0.20 | 0.32 | 0.13 | 5 |
| Mg (meq/L) | 0.03 | 0.10 | 0.01 | 15 |
| Mn (ug/L) | 11.33 | 26.00 | 4.00 | 3 |
| Na (meq/L) | 0.04 | 0.06 | 0.02 | 15 |
| Na (mg/L) | 1.13 | 4.66 | 0.39 | 8 |
| NH3 (ug/L) | 1.00 | 1.00 | 1.00 | 3 |
| NO2 (ug/L) | 2.33 | 3.00 | 2.00 | 3 |
| NO3 (ug/L) | 10.00 | 10.00 | 10.00 | 3 |
| pH | 6.83 | 8.50 | 6.00 | 22 |
| PN (ug/L) | 84.67 | 100.00 | 60.00 | 3 |
| POC (ug/L) | 545.00 | 598.00 | 488.00 | 3 |
| POC:PN | 6.65 | 8.13 | 5.84 | 3 |
| Si (mg/L) | 0.62 | 1.43 | 0.06 | 10 |
| SiO2 (mg/L) | 0.31 | 0.41 | 0.19 | 3 |
| SO4 (mg/L) | 1.58 | 2.21 | 0.90 | 8 |
| SO4 (meq/L) | 0.04 | 0.16 | 0.02 | 15 |
| SRP-U (ug/L) | 0.57 | 0.60 | 0.50 | 3 |
| TEMP (°C) | 10.86 | 14.50 | 6.40 | 20 |
| TKN-U (ug/L) | 166.33 | 352.00 | 32.00 | 3 |
| TN (ug/L) | 264.33 | 425.00 | 146.00 | 3 |
| TN:TP | 39.73 | 55.50 | 18.96 | 3 |
| TOC (mg/L) | 2.47 | 5.10 | 0.30 | 15 |
| TP-F (ug/L) | 3.67 | 5.20 | 2.90 | 3 |
| TP-U (ug/L) | 7.07 | 9.50 | 4.00 | 3 |
| ZOOPL (ug/L) | 1606.45 | 1954.90 | 1400.41 | 3 |
