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Evaluación radiológica y evaluación de dosis de radionucleidos naturales en pasta común

Hossein Sadeghi¹, Reza Pourimani², Mohadese Feyzi²

¹Department of Physics, Faculty of Sciences, Arak University, Arak, 38156-8-8349, Iran. H-Sadeghi@araku.ac.ir.

Scientific reports

|December 19, 2025

Resumen

Este estudio midió radionucleidos en pasta, encontrando niveles por debajo de los límites de seguridad. Los consumidores no enfrentan un riesgo significativo para la salud radiológica por estos productos alimenticios populares.

Área de la Ciencia:

Seguridad alimentaria
Salud radiológica
Radiactividad ambiental

Sus antecedentes:

La contaminación por radionucleidos en los alimentos es una preocupación de salud pública.
La pasta es un alimento básico de consumo generalizado, lo que requiere evaluaciones de seguridad.
Comprender los niveles de radionucleidos en los alimentos garantiza la protección del consumidor.

Objetivo del estudio:

Cuantificar las actividades específicas de radionucleidos clave (²²⁶Ra, ²³²Th, ⁴⁰K, ¹³⁷Cs) en la pasta.
Evaluar los riesgos potenciales para la salud calculando la dosis efectiva anual (DAE) y las tasas de consumo (TR).
Garantizar la seguridad de la pasta para los consumidores en la ciudad de Arak.

Principales métodos:

Espectrometría de rayos gamma utilizando un detector de germanio de alta pureza (HPGe).
Análisis de 12 muestras de pasta recolectadas en tiendas de alimentos locales.
Cálculo de los índices de riesgo radiológico.

Principales resultados:

Los niveles de radionucleidos para ²²⁶Ra, ²³²Th y ⁴⁰K estuvieron dentro de los rangos seguros.
La actividad de ¹³⁷Cs estuvo por debajo de la actividad mínima detectable en todas las muestras.
La DAE promedio fue de 9,31 µSv/año y la TR promedio fue de 491 kg/año.

Conclusiones:

Los parámetros radiológicos en las muestras de pasta analizadas están por debajo de los estándares internacionales de seguridad.
No se identificaron riesgos significativos para la salud radiológica para los consumidores.
El estudio confirma la seguridad de los productos de pasta populares en cuanto a contenido de radionucleidos.

Palabras clave:

Parámetros radiológicos Actividad de radio Tasa de consumo permitida Actividades específicas

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