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| Dataset region | Max occur. (%) | N sample |
|---|---|---|
| Lena River, Russia (LEN) | 5.52 | 10 |
| Bylot Island, Nunavut, Canada. (BYL) | 1.43 | 31 |
| Northern Quebec (QUE) | 1.40 | 8 |
| Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) | 1.00 | 7 |
| Northern Sweden (SWE) | 0.54 | 2 |
| Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) | 0.33 | 2 |
| Yellowknife area, Northwest Territories, Canada (YEL) | 0.28 | 1 |
| Parameter (unit) | Average | Maximum | Minimum | N sample |
|---|---|---|---|---|
| ALK (mekv/L) | 0.43 | 0.45 | 0.41 | 2 |
| ALK (mg/L CaCO3) | 26.14 | 27.27 | 25.01 | 2 |
| Ca (meq/L) | 0.45 | 0.47 | 0.43 | 2 |
| Ca (mg/L) | 8.33 | 13.50 | 1.86 | 4 |
| CHLa-C (ug/L) | 0.30 | 0.50 | 0.10 | 2 |
| CHLa-U (ug/L) | 0.45 | 0.80 | 0.10 | 2 |
| Cl (mg/L) | 4.54 | 9.37 | 1.52 | 4 |
| Cl (meq/L) | 0.06 | 0.07 | 0.04 | 2 |
| COND (uS/cm) | 32.55 | 100.00 | 0.08 | 5 |
| DIC (mg/L) | 7.30 | 12.10 | 2.50 | 2 |
| DIST (km) | -120.00 | -120.00 | -120.00 | 1 |
| DO (mg/L) | 12.25 | 13.50 | 11.00 | 2 |
| DOC (mg/L) | 3.90 | 5.60 | 2.20 | 2 |
| Fe (ug/L) | 36.60 | 36.60 | 36.60 | 1 |
| K (meq/L) | 0.03 | 0.04 | 0.02 | 2 |
| K (mg/L) | 1.16 | 1.95 | 0.58 | 4 |
| Mg (mg/L) | 0.93 | 1.51 | 0.57 | 3 |
| Mg (meq/L) | 0.05 | 0.06 | 0.05 | 2 |
| Mn (ug/L) | 4.00 | 4.00 | 4.00 | 1 |
| Na (mg/L) | 2.21 | 4.66 | 0.97 | 3 |
| Na (meq/L) | 1.60 | 4.72 | 0.04 | 3 |
| NH3 (ug/L) | 1.00 | 1.00 | 1.00 | 1 |
| NH3-F (mg/L) | 0.01 | 0.01 | 0.01 | 1 |
| NO2 (ug/L) | 2.00 | 2.00 | 2.00 | 1 |
| NO2-F (ug/L) | 2.00 | 2.00 | 2.00 | 1 |
| NO2 & NO3-F (mg/L) | 0.01 | 0.01 | 0.01 | 1 |
| NO3 (ug/L) | 10.00 | 10.00 | 10.00 | 1 |
| pH | 7.40 | 8.50 | 6.30 | 5 |
| 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 |
| SiO2 (mg/L) | 0.24 | 0.41 | 0.07 | 2 |
| SO4 (meq/L) | 0.07 | 0.07 | 0.06 | 2 |
| SO4 (mg/L) | 2.25 | 3.46 | 0.42 | 4 |
| SRP-F (ug/L) | 1.60 | 1.60 | 1.60 | 1 |
| SRP-U (ug/L) | 0.60 | 0.60 | 0.60 | 1 |
| TEMP (°C) | 11.65 | 14.50 | 6.70 | 4 |
| TKN-F (ug/L) | 249.00 | 249.00 | 249.00 | 1 |
| TKN-U (ug/L) | 352.00 | 352.00 | 352.00 | 1 |
| TN (ug/L) | 425.00 | 425.00 | 425.00 | 1 |
| TN-F (mg/L) | 0.21 | 0.21 | 0.21 | 1 |
| TN:TP | 44.74 | 44.74 | 44.74 | 1 |
| TOC (mg/L) | 2.80 | 3.30 | 2.30 | 2 |
| TP-F (ug/L) | 6.60 | 8.00 | 5.20 | 2 |
| TP-U (ug/L) | 15.65 | 21.80 | 9.50 | 2 |
| ZOOPL (ug/L) | 1464.04 | 1464.04 | 1464.04 | 1 |
