00000nam 2200000zi 4500 9.874570 CaOODSP 20241203113650 m o d f cr |n||||||||| 190610s1990 onc #ot f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn--- En13-5/90-26E-PDF Baxter, R. M., author. Influence of trophic status on the behaviour of contaminants in aquatic systems / R.M. Baxter [and three others]. Burlington, Ontario : National Water Research Institute, [1990] 1 online resource (21 pages). text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; no. 90-26 Cover title. Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "The problems of eutrophication through nutrient enrichment and contamination with persistent contaminants have traditionally been regarded as unrelated by water scientists and managers, but recently evidence has appeared suggesting that the fate of organic contaminants in an aquatic ecosystem influenced by the trophic state of the system. There is also evidence that the dissolved organic matter in dystrophic, or humic, waters may influence contaminant dynamics. Mechanisms that may be involved include changes in the metabolic capabilities of organisms with changes in trophic state; reductive degradation in the anoxic hypolimnia of highly productive waters; binding of contaminants by dissolved organic matter or organisms, or photochemical degradation induced by light-absorbing molecules. The possible significance of these processes is discussed"--Abstract. Includes abstract in French. gccst Water pollution gccst Aquatic ecosystems Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; no. 90-26. (CaOODSP)9.844121 PDF 2.78 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-90-26-eng.pdf