Scientific Investigations Report 2008–5168
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2008–5168
Table 12. Medians and ranges of concentrations of selected constituents measured in lower hypolimnion and near sediment-water interface at pelagic station 4, Coeur d’Alene Lake, Idaho, water years 2004-06.
[Values are in micrograms per liter unless otherwise indicated. Sample type: SWI, sediment-water interface; LH, lower hypolimnion. Abbreviations: mg/L, milligram per liter; n, number of samples]
| Constituent and units | Sample type |
Median | Range | n | |
|---|---|---|---|---|---|
| Maximum | Minimum | ||||
| No significant difference between SWI and LH | |||||
| Dissolved inorganic nitrogen | LH | 86 | 200 | 36 | 22 |
| SWI | 92 | 220 | 28 | 22 | |
| SWI significantly greater than LH | |||||
| Total phosphorus | LH | 7.5 | 41 | 3.0 | 22 |
| SWI | 26 | 49 | 6.0 | 22 | |
| Dissolved organic carbon, mg/L | LH | 1.3 | 1.5 | 1.2 | 12 |
| SWI | 1.6 | 3.3 | 1.2 | 12 | |
| Total cadmium | LH | .32 | .48 | .22 | 22 |
| SWI | .85 | 1.6 | .31 | 22 | |
| Total zinc | LH | 76 | 110 | 66 | 22 |
| SWI | 140 | 340 | 77 | 22 | |
| Total iron | LH | 54 | 310 | 19 | 22 |
| SWI | 630 | 1,600 | 58 | 22 | |
| Total lead | LH | 1.8 | 17 | .54 | 22 |
| SWI | 35 | 120 | 2.5 | 22 | |
| Total manganese | LH | 5.9 | 40 | 2.5 | 22 |
| SWI | 160 | 830 | 6.6 | 22 | |
U.S. Department of the Interior | U.S. Geological Survey
URL: http://pubs.usgs.gov/sir/2008/5168
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