Medición radiológica de niveles peligrosos en tejas de construcción en el condado de Bungoma, Kenia
DOI:
https://doi.org/10.5935/jetia.v8i33.791Resumen
Se tomaron muestras de veinte (20) mosaicos locales e importados diferentes de las principales ferreterías de Bungoma. Las muestras recolectadas fueron molidas por separado, tamizadas, a través de una malla de 0,5 mm, secadas a 110° C, pesadas y envasadas en botellas de plástico de 200 ml con tapón. Las muestras se estamparon con números de identificación y se mantuvieron durante 30 días para alcanzar el equilibrio secular entre la actividad de 238U,232Th,40K radio y su progenie. Se encontró que la concentración de actividad promedio de 238U, 232Th y 40K era 109±5,48 Bqkg-1, 11±0,55 Bqkg-1 y 1574±78,7 Bqkg-1 respectivamente. Se encontró que la tasa de dosis absorbida promedio era 140±7.03 nGyh-1, que es más alta que el valor promedio mundial de 60 nGyh-1. Se encontró que el equivalente de radio promedio era 288±14,44 Bqkg-1, que es inferior al valor límite mundial de 370 Bqkg-1. Se encontró que los índices de riesgo externo e interno eran 0,70±0,03 msvy-1 y 0,80±0,04 msvy-1, respectivamente. Por lo tanto, las tejas muestreadas utilizadas en el condado de Bungoma para la construcción tienen una amenaza radiológica mínima para la población.
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Referencias
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