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Potentially significant underestimation of PAHs in contaminated sediments / by M. Fox, T. Murphy, L. Thiessen, R. Khan. : En13-5/94-31E-PDF

"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.

Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.877207&sl=1

Renseignements sur la publication
Ministère/Organisme
  • Canada. Environment Canada.
  • Canada. Water Science and Technology Directorate.
  • National Water Research Institute (Canada). Lakes Research Branch.
TitrePotentially significant underestimation of PAHs in contaminated sediments / by M. Fox, T. Murphy, L. Thiessen, R. Khan.
Titre de la série
  • [NWRI contribution] ; 94-31
Type de publicationMonographie - Voir l'enregistrement principal
Langue[Anglais]
FormatTexte numérique
Document électronique
Note(s)
  • Cover title.
  • Digitized edition from print [produced by Environment and Climate Change Canada].
  • Includes bibliographical references.
Information sur la publication
  • [Ottawa] : Environment Canada, Water Science and Technology Directorate = Environnement Canada, Direction générale des sciences et de la technologie, eau, [1994]
Auteur / Contributeur
  • Fox, M. E., author.
  • Murphy, Thomas P. D. (Thomas Patrick Daniel), 1948- author.
  • Thiessen, Lina A., author.
  • Khan, Raza M., author.
Description1 online resource (6 unnumbered pages) : illustrations.
Numéro de catalogue
  • En13-5/94-31E-PDF
Descripteurs
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