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Analysis of Mirex in the Great Lakes Yields Information to Aid Planning and Management, Shows Lake Ontario Concentrations Higher than in Other Great Lakes

As reported in the American Journal of Environmental Sciences, the National Centers for Coastal and Ocean Science (NCCOS) has quantified the pesticide Mirex in sediments and zebra mussels in the southern Great Lakes, yielding information to aid management agencies in planning and formulating ecosystem management actions. Mirex, a persistent and toxic polychlorinated pesticide that began entering the region in the 1960s, is a concern at its current level in Lake Ontario because it is a possible human carcinogen, is bioaccumulative, and has the potential for magnification in the tissues of top predators. NCCOS scientists found that Lake Ontario consistently had the highest Mirex concentrations during the monitoring period of 1992-2004, followed by Lakes Erie, Huron and Michigan. Current concentrations of Mirex at Lake Ontario sites are significantly greater than the national 85th percentile, when compared to the standard used in NCCOS

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Shorter web link for sharing: http://coastalscience.noaa.gov/news/?p=1257

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