Comparison of direct sediment bioassay results with sediment extract results in preserved sediments / B.J. Dutka ... [et al.]. : En13-5/96-157E-PDF
"Complete and unequivocal preservation of samples, whether domestic wastewater, industrial wastes, natural waters or sediments for microbiological or bioassay testing, is a practical impossibility. Realizing the problem, the effects of freezing and thawing on sediments as they relate to bioassay results were investigated by incorporating this preservation feature into a study designed to evaluate the relative sensitivities of direct sediment bioassays and bioassays performed, on sediment extracts and the relative toxicant/genotoxicant load of inlet and outlet sediments at three Toronto area stormwater ponds. The bioassay responses to stored sediments were very bioassay specific as two bioassays supposedly measuring similar effects often produced diametrically opposite results. The superior sensitivity of the direct sediment SOS-Chromotest procedure over genotoxjcity tests performed on sediment extracts is well illustrated in this comparison study"--Abstract.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.846158&sl=1
| Ministère/Organisme | Canada. Environment Canada. National Water Research Institute (Canada) |
|---|---|
| Titre | Comparison of direct sediment bioassay results with sediment extract results in preserved sediments / B.J. Dutka ... [et al.]. |
| Titre de la série | NWRI contribution ; 96-157 |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Format | Électronique |
| Document électronique | |
| Note(s) | "January 1996". Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. Abstracts in English and French. |
| Information sur la publication | Burlington, Ont. : National Water Research Institute, 1996. |
| Description | 8, [2] p. : ill. |
| Numéro de catalogue |
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| Descripteurs | Pollution Water quality |