Total Mercury Content in Cultured Oysters from NW Mexico: Health Risk Assessment

  • C. G. Delgado-Álvarez
  • J. Ruelas-Inzunza
  • J. I. Osuna-López
  • D. Voltolina
  • M. G. Frías-Espericueta
Article

Abstract

The total mercury (Hg) content of the soft tissues of cultured oysters of the genus Crassostrea obtained during the dry and rainy seasons at sampling sites of NW Mexico with different degrees of urbanization, was determined by cold vapor atomic absorption spectrophotometry. Hg levels ranged from 0.05 to 0.37 µg/g (dry weight) and no significant differences (p > 0.05) related to season and sampling site were observed. The values did not exceed the limit of 1.0 µg/g (wet weight) established by Mexican legislation and by the Food and Drug Agency (FDA), and the hazard quotient was between 0.001 and 0.002. The estimated hazard quotient for MeHg ranged approximately from 0.002 to 0.01.

Keywords

Mercury Oyster farms NW Mexico Risk assessment 

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • C. G. Delgado-Álvarez
    • 1
  • J. Ruelas-Inzunza
    • 2
  • J. I. Osuna-López
    • 3
  • D. Voltolina
    • 4
  • M. G. Frías-Espericueta
    • 3
  1. 1.Aquatic Resources Postgraduate Program, Faculty of Marine SciencesAutonomous University of SinaloaMazatlánMexico
  2. 2.Technological Institute of MazatlánMazatlánMexico
  3. 3.Faculty of Marine SciencesAutonomous University of SinaloaMazatlánMexico
  4. 4.Environmental Studies LaboratoryUAS-CIBNORMazatlánMexico

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