000	02285nam  2200373za 4500
001	9.849687
003	CaOODSP
005	20221107153956
007	cr |||||||||||
008	180108s1986    onca|||fob   f000 0 eng d
040	|aCaOODSP|beng
041	|aeng|bfre
043	|an-cn-on
086	1 |aEn13-5/86-136E-PDF
100	1 |aLeppard, Gary G.
245	10|aOrganic and iron-rich colloids in three major rivers of Ontario's arctic watershed |h[electronic resource] / |cby Gary G. Leppard, Robert C. McCrea, Dina Urciuoli.
260	|aBurlington, Ont. : |bHydraulics Division, National Water Research Institute, |c1986.
300	|a25 p. : |bill.
490	1 |aNWRI contribution ; |v86-136
500	|a"Control No. AED44".
500	|aDigitized edition from print [produced by Environment and Climate Change Canada].
504	|aIncludes bibliographical references.
520	0 |a"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.
546	|aIncludes a title, abstract and management perspective in French.
692	07|2gccst|aWater quality
692	07|2gccst|aWater pollution
700	1 |aUrciuoli, Dina.
700	1 |aMcCrea, R. C.
710	1 |aCanada. |bEnvironment Canada.
710	2 |aNational Water Research Institute (Canada)
830	#0|aNWRI contribution ;|vno. 86-136|w(CaOODSP)9.844121
856	40|qPDF|s2.20 MB|uhttps://publications.gc.ca/collections/collection_2018/eccc/En13-5-86-136-eng.pdf