000 02278cam  2200409zi 4500
006m     o  d f      
007cr |n|||||||||
008190528s1989    onc    #ot   f000 0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
041 |aeng|bfre
043 |an-cn-on
0861 |aEn13-5/89-113E-PDF
1001 |aMaguire, R. J. |q(R. James)|eauthor.
24510|aPotential underestimation of chlorinated hydrocarbon concentrations in fresh water / |cby R. James Maguire and Richard J. Tkacz.
264 1|aBurlington, Ontario : |bRivers Research Branch, National Water Research Institute, |c1989.
300 |a1 online resource (19 unnumbered pages).
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aNWRI contribution ; |vno. 89-113
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
500 |a"April 1989."
504 |aIncludes bibliographical references.
520 |a"Significant concentrations of PCBs and other chlorinated hydrocarbons have been found in dichloromethane extracts of filtered Niagara River water at pH 12 after the water had been thoroughly extracted at pH 1. This finding was unexpected since all of those chemicals should have been extracted at low pH. Moreover considerable quantities of these chemicals were occasionally recovered in the basic extracts relative to acidic extracts and extracts of suspended solids. Experiments with water from another source showed that some PCBs were recovered in dichloromethane extracts of basic filtered water which had previously been extracted under either acidic or neutral conditions"--Management Perspective.
546 |aIncludes abstract in French.
69207|2gccst|aWater pollution
69207|2gccst|aFresh water
7001 |aTkacz, Richard J., |eauthor.
7101 |aCanada. |bEnvironment Canada.
7102 |aNational Water Research Institute (Canada)
830#0|aNWRI contribution ;|vno. 89-113.|w(CaOODSP)9.844121
85640|qPDF|s1.44 MB|uhttps://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-89-113-eng.pdf