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Radium-226 in Wetland Birds from Florida Phosphate Mines

Orrin B. Myers, Wayne R. Marion, Timothy E. O'Meara and Charles E. Roessler
The Journal of Wildlife Management
Vol. 53, No. 4 (Oct., 1989), pp. 1110-1116
Published by: Wiley on behalf of the Wildlife Society
DOI: 10.2307/3809617
Stable URL: http://www.jstor.org/stable/3809617
Page Count: 7
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Radium-226 in Wetland Birds from Florida Phosphate Mines
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Abstract

Radium-226 is a naturally-occurring radionuclide found in enhanced levels at Florida phosphate mines. We inventoried levels of radium-226 in the tissues of 4 wetland bird species from 2 mined and 2 unmined areas in Florida. Bone tissues of wood duck (Aix sponsa), mottled duck (Anas fulvigula), common moorhen (Gallinula chloropus), and double-creasted cormorant (Phalacrocorax auritus) collected at phosphate mines contained more radium-226 (P < 0.05) than tissues from unmined areas. Radium-226 concentrations in these birds were within guidelines inferred from radiological standards designed for human protection and should not adversely affect bird populations.

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