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Published on: April 14, 2012
Long-term monitoring of radioactivity in fish from New York waters
Michael E Kitto1, Joseph C Marrantino2, Eileen M Fielman2
1Wadsworth Center, New York State Department of Health, PO. Box 509, Albany, NY 12201, USA; School of Public Health, University at Albany, State University of New York, Rensselaer, NY 12144, USA.
Abstract:
As part of an environmental surveillance program operated by the New York State (NYS) Department of Health, measurements of various radionuclides in aquatic life (primarily fish) collected from waterways in NYS have occurred for decades. An investigation was undertaken to gain a better understanding of the occurrence, activity levels, and extent of radionuclide variations in aquatic life obtained from local waterways in relation to concentrations reported in fish from sites outside NYS (e.g., Pacific Ocean tuna). The man-made isotopes (137)Cs and (90)Sr were detectable at activities below 1 Bq/kg in the edible portions of fish from most NYS waterways, with the exception of greater activities in fish collected downstream of Brookhaven National Laboratory. Calculated effective doses resulting from eating the fish, estimated as 11-390 nSv/yr for (137)Cs and 0.3-7.9 nSv/yr for (90)Sr, are considered extremely low.
