| Abstract: | Sediments in 67 of 145 Colorado wetlands sampled by the US Geological Survey contain moderate (20 ppm) or greater concentrations of uranium (some as high as 3000 ppm) based on dry weight. The proposed maximum contaminant level (MCL) for uranium in drinking water is 20 ??g/l or 20 ppb. By comparison, sediments in many of these wetlands contain 3 to 5 orders of magnitude more uranium than the proposed MCL. Wetlands near the workings of old mines may be trapping any number of additional metals/elements including Cu, Pb, Zn, As and Ag. Anthropogenic disturbances and natural changes may release uranium and other loosely bound metals presently contained in wetland sediments. -from Authors |
| Genre: | Article |
| ProdID: | 70018751 |
| Citation Author: | Owen, D. E.; Otton, J. K. |
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| Citation End Page: | 93 |
| Citation Issue: | 1 |
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| Citation Language: | English |
| Citation Larger Work Title: | Ecological Engineering |
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| Citation Number Of Pages: | 17 |
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| Citation Search Results Text: | Mountain wetlands: efficient uranium filters - potential impacts; 1995; Article; Journal; Ecological Engineering; Owen, D. E.; Otton, J. K. |
| Citation Start Page: | 77 |
| Citation Volume: | 5 |
| Citation Year: | 1995 |
| Type: | citation/reference |
| Text: | Mountain wetlands: efficient uranium filters - potential impacts; 1995; Article; Journal; Ecological Engineering; Owen, D. E.; Otton, J. K. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sun, 1 Jan 1995 00:00 -0600 |
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