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| 02523cam 2200421zi 4500 |
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| 001 | 9.877207 |
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| 003 | CaOODSP |
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| 005 | 20221107164919 |
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| 006 | m o d f |
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| 007 | cr bn||||||||| |
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| 008 | 190730s1994 onca ob f000 0 eng d |
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| 040 | |aCaOODSP|beng|erda|cCaOODSP |
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| 043 | |an-cn-on |
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| 086 | 1 |aEn13-5/94-31E-PDF |
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| 100 | 1 |aFox, M. E., |eauthor. |
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| 245 | 10|aPotentially significant underestimation of PAHs in contaminated sediments / |cby M. Fox, T. Murphy, L. Thiessen, R. Khan. |
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| 264 | 1|a[Ottawa] : |bEnvironment Canada, Water Science and Technology Directorate = Environnement Canada, Direction générale des sciences et de la technologie, eau, |c[1994] |
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| 300 | |a1 online resource (6 unnumbered pages) : |billustrations. |
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| 336 | |atext|btxt|2rdacontent |
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| 337 | |acomputer|bc|2rdamedia |
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| 338 | |aonline resource|bcr|2rdacarrier |
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| 490 | 1 |a[NWRI contribution] ; |v94-31 |
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| 500 | |aCover title. |
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| 500 | |aDigitized edition from print [produced by Environment and Climate Change Canada]. |
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| 504 | |aIncludes bibliographical references. |
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| 520 | 3 |a"Freshwater and marine sediment samples collected for analysis of trace organic contaminants are frequently freeze dried and then stored, either cold or at ambient temperatures, sometimes for years, before extraction and analysis. The potential for loss of up to 99% of naphthalene was observed during the analysis of coal tar contaminated sediments from Hamilton Harbour, Lake Ontario. Investigations revealed that inadequate temperature control and excessive total exposure time during freeze drying produced large and highly variable losses of naphthalene and much smaller losses of higher molecular weight PAHs. Such under reporting of naphthalene may lead to serious underestimation of the acute toxicity of sediments to benthic fauna"--Abstract. |
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| 692 | 07|2gccst|aLakes |
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| 692 | 07|2gccst|aSediments |
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| 692 | 07|2gccst|aPollutants |
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| 700 | 1 |aMurphy, Thomas P. D. |q(Thomas Patrick Daniel), |d1948- |eauthor. |
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| 700 | 1 |aThiessen, Lina A., |eauthor. |
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| 700 | 1 |aKhan, Raza M., |eauthor. |
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| 710 | 1 |aCanada. |bEnvironment Canada. |
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| 710 | 1 |aCanada. |bWater Science and Technology Directorate. |
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| 710 | 2 |aNational Water Research Institute (Canada). |bLakes Research Branch. |
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| 830 | #0|aNWRI contribution ;|v94-31.|w(CaOODSP)9.844121 |
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| 856 | 40|qPDF|s941 KB|uhttps://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-94-31-eng.pdf |
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