00000nam 2200000za 4500 9.866062 CaOODSP 20241203113644 cr ||||||||||| 181214s2001 onc #ot f|0| 0 eng d CaOODSP eng eng fre n-cn-on En13-5/01-200E-PDF Trends in spatial and temporal levels of persistent organic pollutants in Lake Erie sediments [electronic resource] / C. Marvin ... [et al.]. [Burlington, Ont.] : Environment Canada, National Water Research Institute, [2001] [49] p. : figures. NWRI contribution ; no. 01-200 Digitized edition from print [produced by Environment and Climate Change Canada]. Cover title. Includes bibliographic references. "A Lake Erie sediment survey was conducted in 1997 to characterize spatial trends in contamination and for comparison with historical levels to assess the degree of improvement in environmental quality since the advent of measures to reduce contaminant sources. This survey was also designed to assist in the identification of possible sources of contamination and areas where contamination exceeded Canadian sediment quality guidelines for the protection of aquatic biota"--Abstract. Text in English, abstracts in English and French. gccst Water pollution gccst Lakes gccst Sediments Marvin, Christopher H. Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; no. 01-200. (CaOODSP)9.844121 PDF 1.68 MB https://publications.gc.ca/collections/collection_2018/eccc/en13-5/En13-5-1-200-eng.pdf