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| 02334cam 2200385za 4500 |
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| 001 | 9.849854 |
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| 003 | CaOODSP |
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| 005 | 20221107154021 |
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| 007 | cr ||||||||||| |
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| 008 | 180111s1986 onca|||fob|||f000 0 eng d |
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| 040 | |aCaOODSP|beng |
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| 043 | |an-cn--- |
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| 086 | 1 |aEn13-5/86-162E-PDF |
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| 100 | 1 |aCheam, V. |
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| 245 | 10|aSulfate in coloured waters II |h[electronic resource] : |bevaluation of approaches for correcting historical colorimetric data / |cby V. Cheam and A.S.Y. Chau. |
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| 246 | 3 |aSulfate in colored waters II : |bevaluation of approaches for correcting historical colorimetric data |
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| 260 | |aBurlington, Ont. : |bAnalytical Methods Division, National Water Research Institute, Canada Centre for Inland Waters, |c1986. |
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| 300 | |a13, [12] p. : |bill. |
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| 490 | 1 |aNWRI contribution ; |v86-162 |
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| 500 | |a"February 1986". |
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| 500 | |a"Control No. AM302". |
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| 500 | |a"This manuscript has been submitted for publication in a Journal and the contents are subject to change". |
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| 500 | |aDigitized edition from print [produced by Environment and Climate Change Canada]. |
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| 504 | |aIncludes bibliographical references: p. 12-13. |
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| 520 | 3 |a"The various approaches for correcting historical colorimetric sulfate data were discussed and evaluated. A simple and direct approach was found to be satisfactory. To correct historical colorimetric data, data sets are first categorized and grouped together based on geographical locations and seasonal variations of DOC (or colour) of a specific site, river, lake (or groups) which have similar amounts and nature of organic matter. For each group, the colorimetric and chromatogrpahic S04 values are then obtained andrelated by an equation, which is used to convert the correspondinghistorical values to "true" SO4 values"--Abstract. |
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| 692 | 07|2gccst|aAcid rain |
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| 692 | 07|2gccst|aScientific research |
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| 692 | 07|2gccst|aWater management |
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| 700 | 1 |aChau, A. S. Y. |q(Alfred Shun-Yuen), |d1941- |
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| 710 | 1 |aCanada. |bEnvironment Canada. |
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| 710 | 2 |aNational Water Research Institute (Canada) |
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| 830 | #0|aNWRI contribution ;|vno. 86-162|w(CaOODSP)9.844121 |
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| 856 | 40|qPDF|s1.35 MB|uhttps://publications.gc.ca/collections/collection_2018/eccc/En13-5-86-162-eng.pdf |
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