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| Dataset region | Max occur. (%) | N sample |
|---|---|---|
| Taimyr Peninsula, Russia (TAI) | 65.05 | 13 |
| Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) | 51.49 | 43 |
| Labrador, Canada (LAB) | 47.00 | 50 |
| Lena River, Russia (LEN) | 28.16 | 11 |
| Yellowknife area, Northwest Territories, Canada (YEL) | 22.83 | 21 |
| Northern Quebec (QUE) | 14.40 | 28 |
| Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) | 9.62 | 1 |
| Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) | 8.09 | 80 |
| Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) | 2.88 | 1 |
| Pechora River, Russia (PEC) | 1.47 | 2 |
| Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) | 1.34 | 3 |
| Abisko, Sweden (ABK) | 0.51 | 3 |
| Parameter (unit) | Average | Maximum | Minimum | N sample |
|---|---|---|---|---|
| Ag (ug/L) | 1.25 | 2.00 | 1.00 | 4 |
| Al (ug/L) | 460.00 | 1070.00 | 40.00 | 4 |
| Ba (ug/L) | 5.70 | 11.30 | 2.20 | 4 |
| Be (ug/L) | 0.20 | 0.20 | 0.20 | 4 |
| Ca (mg/L) | 4.04 | 31.00 | 0.50 | 25 |
| Ca (meq/L) | 0.11 | 0.13 | 0.09 | 3 |
| Cd (ug/L) | 1.00 | 1.00 | 1.00 | 4 |
| CHLa-C (ug/L) | 0.51 | 1.40 | 0.10 | 22 |
| CHLa-U (ug/L) | 0.90 | 1.80 | 0.40 | 22 |
| Cl (mg/L) | 1.36 | 7.80 | 0.50 | 25 |
| Cl (meq/L) | 0.03 | 0.05 | 0.01 | 3 |
| Co (ug/L) | 1.25 | 2.00 | 1.00 | 4 |
| COND (uS/cm) | 23.67 | 190.00 | 0.00 | 31 |
| Cr (ug/L) | 1.50 | 3.00 | 1.00 | 4 |
| Cu (ug/L) | 5.75 | 9.00 | 1.00 | 4 |
| DIC (mg/L) | 2.88 | 25.10 | 0.10 | 25 |
| DIST (km) | 87.26 | 242.50 | -120.00 | 21 |
| DO (mg/L) | 13.86 | 14.00 | 13.57 | 3 |
| DOC (mg/L) | 3.99 | 13.40 | 0.60 | 28 |
| Fe (ug/L) | 172.96 | 1890.00 | 7.50 | 25 |
| K (mg/L) | 0.61 | 2.60 | 0.20 | 25 |
| K (meq/L) | 0.01 | 0.01 | 0.01 | 3 |
| Li (ug/L) | 2.75 | 5.00 | 1.00 | 4 |
| Mg (mg/L) | 4.05 | 10.50 | 1.40 | 4 |
| Mg (meq/L) | 0.06 | 0.08 | 0.05 | 3 |
| Mn (ug/L) | 5.68 | 33.50 | 0.10 | 25 |
| Mo (ug/L) | 1.00 | 1.00 | 1.00 | 4 |
| Na (meq/L) | 0.05 | 0.06 | 0.05 | 3 |
| Na (mg/L) | 1.29 | 8.60 | 0.36 | 25 |
| NH3 (ug/L) | 7.24 | 25.00 | 1.00 | 25 |
| Ni (ug/L) | 2.75 | 4.00 | 2.00 | 4 |
| NO2 (ug/L) | 4.80 | 76.00 | 1.00 | 25 |
| NO2 & NO3-F (mg/L) | 63.50 | 146.00 | 10.00 | 4 |
| NO3 (ug/L) | 10.00 | 10.00 | 10.00 | 21 |
| Pb (ug/L) | 5.00 | 5.00 | 5.00 | 4 |
| pH | 7.56 | 8.80 | 6.10 | 31 |
| PN (ug/L) | 68.29 | 104.00 | 29.00 | 21 |
| POC (ug/L) | 555.64 | 1080.00 | 339.00 | 25 |
| POC:PN | 8.84 | 18.21 | 3.79 | 21 |
| PON (ug/L) | 52.50 | 72.00 | 23.00 | 4 |
| Si (mg/L) | 1.60 | 3.02 | 0.53 | 3 |
| SiO2 (mg/L) | 0.32 | 1.56 | 0.04 | 25 |
| SO4 (meq/L) | 0.03 | 0.04 | 0.02 | 3 |
| SO4 (mg/L) | 2.07 | 17.30 | 0.30 | 25 |
| Sr (ug/L) | 40.05 | 93.20 | 13.90 | 4 |
| SRP-U (ug/L) | 188.53 | 2000.00 | 0.20 | 25 |
| TEMP (°C) | 9.99 | 15.00 | 0.00 | 31 |
| TKN-U (ug/L) | 161.48 | 352.00 | 32.00 | 25 |
| TN (ug/L) | 248.24 | 429.00 | 77.00 | 25 |
| TN:TP | 43.24 | 70.59 | 17.53 | 21 |
| TOC (mg/L) | 8.63 | 14.90 | 3.10 | 3 |
| TP-F (ug/L) | 4.11 | 9.20 | 0.00 | 25 |
| TP-U (ug/L) | 7.85 | 39.80 | 0.01 | 25 |
| V (ug/L) | 1.25 | 2.00 | 1.00 | 4 |
| Zn (ug/L) | 3.50 | 6.00 | 1.00 | 4 |
| ZOOPL (ug/L) | 1323.88 | 2120.75 | 367.56 | 19 |
