During the past several years, the B.C. Ministry of Environment through the Fraser River Harbour Commission, has measured contaminant concentrations in sediments collected from sites in the Fraser River and Boundary Bay. Where elevated contaminant concentrations were found, it was observed that generally, the particular sediment sample had a greater portion of the smallest particle size. While reviewing the analytical data, it was also found that criteria did not exist which could be used to determine if the measured concentrations were environmentally significant. The aims of the 1990 monitoring program were to (a) determine if elevated contaminant concentrations were associated with a particular particle size fraction, and (b) using sediment toxicity tests, determine if toxic properties were associated with a particular particle size fraction.
Swain, L.G., Walton, D.G.. 1991. Report on the 1990 Lower Fraser River and Boundary Bay Sediment Chemistry and Toxicity Program. BC Ministry of Environment
Keywords: Fraser River Harbour Commission, Fraser River, Boundary Bay, contaminant concentrations, sediment toxicity
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