Research Article
Trace Element Concentration and Speciation in Selected Mining-Contaminated Soils and Water in Willow Creek Floodplain, Colorado
Table 10
Sequential fractionation of Pb in study soils.
| | Soil | Depth |
PbWS |
PbEX | |
PbOX | |
PbRES | | | (cm) | mg/kg | (mg/kg) |
| | Gravelbar | 0–73 | 9.2 | 33.9 | 1756.2 | 773.3 | 13.6 | 157.8 | 2744 | | Cottonwood | 0–90 | 4.1 | 11.9 | 903.5 | 287.0 | 10.3 | 58.6 | 1275 | | Spruce | 0–10 | 11.9 | 39.9 | 2641.5 | 1194.3 | 24.2 | 228.6 | 4140 | | 10–40 | 12.6 | 34.7 | 2108.9 | 981.4 | 19.4 | 302.3 | 3459 | | Railroad | 0–61 | 60.9 | 168.9 | 1097.5 | 2240.7 | 40.4 | 1351.5 | 4960 | | 61–120 | 24.6 | 175.2 | 1086.7 | 1056.9 | 19.1 | 865.4 | 3228 | | Western Channel | 0–40 | 17.4 | 123.5 | 2529.5 | 1045.8 | 24.1 | 176.9 | 3917 | | Salty | 0–20 | 22.1 | 50.2 | 3603.0 | 1267.1 | 16.1 | 223.9 | 5182 | | North | 0–40 | 9.9 | 83.7 | 2625.0 | 1595.8 | 17.3 | 221.9 | 4554 | | South | 0–40 | 126.9 | 148.7 | 1461.8 | 673.5 | 20.7 | 321.7 | 2753 | | Denuded Mound | 0–40 | 284.2 | 2070.0 | 5628.9 | 402.5 | 13.7 | 130.3 | 8530 | | Sedge Mound | 0–40 | 1.0 | 1.8 | 164.4 | 90.9 | 2.9 | 27.3 | 288 |
|
|
.
|
