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A Role for Airborne Particulates in High Mercury Levels of Some Cetaceans
Ecotoxicology and Environmental Safety
  • A J Rawson, University of South Florida
  • J P Bradley, University of South Florida
  • A Teetsov, University of South Florida
  • S B Rice, University of South Florida
  • Edward M Haller, University of South Florida
  • G W Patton, University of South Florida
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In a study of 25 Tursiops truncatus and two Globicephala macrorhynchus examined by necropsy, abundant HgSe was found in both the liver and in the respiratory system (lung and hilar lymph nodes). In the liver HgSe was consistently associated with the cell-breakdown pigment lipofuscin, whereas in lung and hilar lymph nodes it was consistently associated with particulates consisting of partially graphitic soot and silicates. This supports earlier suggestions that in the liver HgSe may be a storage end product of Hg metabolism, while adding the new suggestion that in the respiratory system HgSe may be inhaled, preformed in combustion emissions.


Additional Authors: Haller EM, Patton GW

Citation / Publisher Attribution

Ecotoxicology and Environmental Safety, v. 30, issue 3, p. 309-314

Citation Information
A J Rawson, J P Bradley, A Teetsov, S B Rice, et al.. "A Role for Airborne Particulates in High Mercury Levels of Some Cetaceans" Ecotoxicology and Environmental Safety Vol. 30 Iss. 3 (1995) p. 309 - 314
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