Study of Gross alpha beta radioactivity content in commercial water brands by liquid scintillation

Authors

  • C. P. Zepeda Instituto Nacional de Investigaciones Nucleares
  • A. Ángeles Instituto Nacional de Investigaciones Nucleares
  • G. Delgado Instituto Nacional de Investigaciones Nucleares

DOI:

https://doi.org/10.31349/SuplRevMexFis.5.011204

Keywords:

radionuclides, gross alpha beta radioactivity, radiological risk, liquid scintillation

Abstract

This study presents the Gross alpha beta radioactivity in bottled water from twenty different commercial brands. In Mexico, the official Mexican standard NOM-127-SSA1-2021 establishes the values of 0.5 and 1.0 Bq/L as limits for Gross alpha and beta radioactivity in drinking water. The analysis was carried out with the liquid scintillation method, making a concentration of 10 to obtain a minimum detectable concentration of 0.25 and 0.5 Bq/L respectively. The results obtained indicate that in all cases the bottled waters comply with the applicable standard, which in turn indicates that the effective annual dose would be less than 0.1 mSv, since this limit was calculated based on this premise, indicating that the radiological risk for the consumer is negligible according to this norm.

References

A.Angeles, I. Gaso, E. Quintero. Measurement of Content of 226Ra in Drinking Water From Some States of Mexican Republic by Liquid Scintillation Method, J. Nucl. Phys. Mat. Sci. Rad. A. 7 (2020) 195, https://www.researchgate.net/publication/339907561

WHO, Guidelines for drinking-water quality: fourth edition incorporating the first and second addenda, World Health Organization, Geneva, Switzerland, p. 219-236, https://www.who.int/news-room/fact-sheets/detail/drinking-water

IAEA, Radiation protection and safety of radiation sources: International Basic safety standars, GSR part 3, IAEA, Vienna, 132-133, https://www-pub.iaea.org

Secretaría de Salud, NORMA Oficial Mexicana NOM-127- SSA1-2021, Agua para uso y consumo humano. Límites permisibles de la calidad del agua. DOF: 02/05/2022 Mexican Health Secretary, p. 7, Mexico, https://www.dof.gob.mx

A. Calvillo, La aberración del agua embotellada, Consejo Nacional de Humanidades, Ciencias y Tecnología (Conahcyt) México, https://conahcyt.mx/la-aberracion-del-agua-embotellada/

Hidex, Hidex 300 SL Automatic liquid scintillation counter, owner handbook, Hidex, 66 to 70, Finland

ISO. Water quality-Gross alpha and gross beta activity-Test method using liquid scintillation counting. ISO 11704, ISO, 2 to 11, Geneva, Switzerland, 2018. https://doi.org/10.1016/j.apradiso.2012.02.097

C. Wanke, K. Kossert, O.J. Nähle, Investigations on TDCR measurements with the HIDEX 300 SL using a free parameter model, Appl. Rad. Isotopes 70 (2012) 2176-2183, https://doi.org/10.1016/j.apradiso.2012.02.097

ISO, Uncertainty of measurement-Part 3, International Organization for Standardization (ISO), International Electrotechnical Commision (IEC), 8 to 23, Geneva Switzerland, https://www.iso.org/standard/50461

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Published

2024-09-22

How to Cite

1.
Zepeda CP, Angeles A, Delgado G. Study of Gross alpha beta radioactivity content in commercial water brands by liquid scintillation. Supl. Rev. Mex. Fis. [Internet]. 2024 Sep. 22 [cited 2025 Feb. 5];5(1):011204 1-4. Available from: https://rmf.smf.mx/ojs/index.php/rmf-s/article/view/7422