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Journal of Radioanalytical and Nuclear Chemistry

, Volume 295, Issue 2, pp 1293–1297 | Cite as

Radioactivity levels and radiation hazard of healing mud from San Diego River, Cuba

  • O. Díaz Rizo
  • A. Gelen Rudnikas
  • J. O. Arado López
  • K. D′Alessandro Rodríguez
  • P. González Hernández
  • J. R. Fagundo Castillo
  • D. Blanco Padilla
Article

Abstract

Healing mud core samples were collected in the San Diego River (Southwest Cuba), in order to determine the behaviour of the radioactivity levels of 226Ra, 137Cs, 232Th and 40K and to evaluate their possible radiological impact on peloide therapeutic uses. The radionuclide concentration ranges in healing mud profiles on Bq kg−1 dry weight varied as follows: 226Ra = 22–26, 137Cs = 4.6–33.0, 232Th = 18–31 and 40K = 208–433. The calculated average radium equivalent activity (82 Bq kg−1), total absorbed dose rate (40 nGy h−1), external hazard index (0.23), annual gonadal dose equivalent (280 μSv h−1) and annual effective dose equivalent (48.5 μSv y−1) are less than international recommended values. Hence, the levels of radioactivity in healing muds from San Diego River are not an impediment for its use for medical proposes.

Keywords

Radioactivity Healing mud San Diego Cuba 

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2012

Authors and Affiliations

  • O. Díaz Rizo
    • 1
  • A. Gelen Rudnikas
    • 1
  • J. O. Arado López
    • 1
  • K. D′Alessandro Rodríguez
    • 1
  • P. González Hernández
    • 2
  • J. R. Fagundo Castillo
    • 2
  • D. Blanco Padilla
    • 3
  1. 1.Instituto Superior de Tecnologías y Ciencias Aplicadas (InSTEC)Salvador Allende Ave. and LuacesHavanaCuba
  2. 2.Facultad de QuímicaUniversidad de La HabanaHavanaCuba
  3. 3.Sanatorio “San Diego de los Baños” Los PalaciosPinar del RíoCuba

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