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| Dataset region | Max occur. (%) | N sample |
|---|---|---|
| Bylot Island, Nunavut, Canada. (BYL) | 15.00 | 125 |
| Lena River, Russia (LEN) | 7.58 | 7 |
| Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) | 4.75 | 95 |
| Abisko, Sweden (ABK) | 4.20 | 20 |
| Taimyr Peninsula, Russia (TAI) | 2.22 | 4 |
| Labrador, Canada (LAB) | 1.60 | 7 |
| Pechora River, Russia (PEC) | 1.26 | 1 |
| Northern Quebec (QUE) | 1.20 | 7 |
| Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) | 1.00 | 10 |
| Yellowknife area, Northwest Territories, Canada (YEL) | 0.49 | 4 |
| Parameter (unit) | Average | Maximum | Minimum | N sample |
|---|---|---|---|---|
| Ca (meq/L) | 0.11 | 0.41 | 0.02 | 20 |
| Ca (mg/L) | 4.00 | 13.50 | 0.70 | 7 |
| CHLa-C (ug/L) | 0.64 | 1.50 | 0.30 | 7 |
| CHLa-U (ug/L) | 1.19 | 3.30 | 0.60 | 7 |
| Cl (mg/L) | 3.14 | 8.00 | 0.70 | 7 |
| Cl (meq/L) | 0.03 | 0.07 | 0.01 | 20 |
| COND (uS/cm) | 10.12 | 100.00 | 0.00 | 32 |
| DIC (mg/L) | 3.77 | 12.10 | 0.20 | 7 |
| DIST (km) | 4.38 | 155.00 | -120.00 | 4 |
| DO (mg/L) | 10.44 | 14.00 | 1.80 | 8 |
| DOC (mg/L) | 4.30 | 11.30 | 0.20 | 27 |
| Fe (ug/L) | 82.45 | 210.00 | 30.10 | 4 |
| K (mg/L) | 1.11 | 2.08 | 0.42 | 7 |
| K (meq/L) | 0.01 | 0.03 | 0.00 | 20 |
| Mg (meq/L) | 0.05 | 0.16 | 0.01 | 20 |
| Mg (mg/L) | 2.27 | 3.72 | 1.08 | 3 |
| Mn (ug/L) | 10.53 | 26.00 | 0.10 | 4 |
| Na (mg/L) | 1.68 | 4.66 | 0.46 | 4 |
| Na (meq/L) | 0.46 | 6.08 | 0.01 | 23 |
| NH3 (ug/L) | 3.50 | 6.00 | 1.00 | 4 |
| NH3-F (mg/L) | 0.03 | 0.08 | 0.01 | 3 |
| NO2 (ug/L) | 2.75 | 3.00 | 2.00 | 4 |
| NO2-F (ug/L) | 2.67 | 4.00 | 1.00 | 3 |
| NO2 & NO3-F (mg/L) | 0.01 | 0.01 | 0.01 | 3 |
| NO3 (ug/L) | 10.00 | 10.00 | 10.00 | 4 |
| pH | 6.85 | 8.50 | 6.00 | 32 |
| PN (ug/L) | 81.75 | 100.00 | 60.00 | 4 |
| POC (ug/L) | 686.50 | 1080.00 | 488.00 | 4 |
| POC:PN | 8.39 | 11.49 | 5.98 | 4 |
| Si (mg/L) | 0.80 | 2.86 | 0.03 | 20 |
| SiO2 (mg/L) | 0.52 | 1.90 | 0.04 | 7 |
| SO4 (meq/L) | 0.04 | 0.16 | 0.02 | 20 |
| SO4 (mg/L) | 2.95 | 14.80 | 0.08 | 7 |
| SRP-U (ug/L) | 0.90 | 1.30 | 0.60 | 4 |
| TEMP (°C) | 11.03 | 14.50 | 5.60 | 30 |
| TKN-F (ug/L) | 674.00 | 1330.00 | 93.00 | 3 |
| TKN-U (ug/L) | 219.50 | 352.00 | 32.00 | 4 |
| TN (ug/L) | 315.00 | 429.00 | 146.00 | 4 |
| TN:TP | 35.03 | 44.74 | 18.96 | 4 |
| TOC (mg/L) | 4.13 | 9.20 | 0.70 | 20 |
| TP-F (ug/L) | 7.99 | 21.30 | 2.30 | 7 |
| TP-U (ug/L) | 14.06 | 37.40 | 6.10 | 7 |
| ZOOPL (ug/L) | 1262.17 | 1954.90 | 367.56 | 3 |
