Organic and iron-rich colloids in three major rivers of Ontario's arctic watershed / by Gary G. Leppard, Robert C. McCrea, Dina Urciuoli.: En13-5/86-136E-PDF
"The colloidal fraction of river waters is usually ignored in considerations of metal dispersion; and colloidal organic carbon as a metal-dispersing agent tends to be considered in theoretical terms only. This report shows that, for three northern Ontario rivers, a colloidal fraction accounts for 40% of the iron normally attributed to the dissolved phase. Much of this iron is associated with a small fraction of organic colloids; and particularly with spheroids whose diameter is in the range of 0.015-0.060 um. Such spheroids go undetected by many techniques used by limnologists. The descriptions of the riverine colloidal fractions provided here are probably the first high resolution (0.003 um resolution) studies availbble on the structure, size, shape and relative iron levels of dominant riverine colloids"--Management perspective.
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| Department/Agency | Canada. Environment Canada. National Water Research Institute (Canada) |
|---|---|
| Title | Organic and iron-rich colloids in three major rivers of Ontario's arctic watershed / by Gary G. Leppard, Robert C. McCrea, Dina Urciuoli. |
| Series title | NWRI contribution ; 86-136 |
| Publication type | Series - View Master Record |
| Language | [English] |
| Format | Electronic |
| Electronic document | |
| Note(s) | "Control No. AED44". Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. Includes a title, abstract and management perspective in French. |
| Publishing information | Burlington, Ont. : Hydraulics Division, National Water Research Institute, 1986. |
| Author / Contributor | Leppard, Gary G. Urciuoli, Dina. McCrea, R. C. |
| Description | 25 p. : ill. |
| Catalogue number |
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| Subject terms | Water quality Water pollution |
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