00000nam 2200000zi 4500 9.873904 CaOODSP 20241203113649 m o d f cr |n||||||||| 190530s1989 onc #ot f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn-on En13-5/89-157E-PDF Kwan, K. K., author. Simple two-step sediment extraction procedure for use in genotoxicity and toxicity bioassays / by K.K. Kwan and B.J. Dutka. Burlington, Ontario : Rivers Research Branch, National Water Research Institute, 1989. 1 online resource (12, 4 pages). text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; no. 89-157 Digitized edition from print [produced by Environment and Climate Change Canada]. "September 1989." Includes bibliographical references. "Three simple sediment extraction procedures, using Milli Q water, DMSO and methanol, were applied to 16 sediment samples collected from the Thames River, Ontario, Canada. The three extracts were tested for the presence of toxicity and genotoxicity using the Microtox, Toxi-Chromotest and Mutatox (with and without S-9) procedures. Results of the study indicated that the Mutatox, genotoxicity screening test was an extremely sensitive procedure responding to chemicals in all three types of extracts. Methanol was found to be more efficient than DMSO in extracting toxic and genotoxic chemicals from these sediments. Procedural details and results are discussed"--Abstract. Includes abstract in French. gccst Sediments gccst Water pollution Dutka, B. J., author. Canada. Environment Canada. National Water Research Institute (Canada). Rivers Research Branch. NWRI contribution ; no. 89-157. (CaOODSP)9.844121 PDF 1.17 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-89-157-eng.pdf