A survey of Fertility Cancer and Hereditary Risks in Soil Sample of Nasarawa was carried out.This study assessed the level of Fertility Cancer and Hereditary Risks from the naturally occurring radionuclides;^(232)Th,^...A survey of Fertility Cancer and Hereditary Risks in Soil Sample of Nasarawa was carried out.This study assessed the level of Fertility Cancer and Hereditary Risks from the naturally occurring radionuclides;^(232)Th,^(226)Ra and ^(40)K.12 soil samples collected from the respective part of the Nasarawa were analyzed using the gamma-ray spectrometry NaI(Tl)detector system.The mean concentration for ^(40)K was 645.29±07.32 Bq/kg,for ^(226)Ra was 28.43±4.8422 Bq/Kg and for ^(232)Th was 66.84±2.0201 Bq/Kg.The average effective dose due to the ingestion was 0.36±0.1μSv/y which was approximately 1000 times lower than the world average effective dose.Radium equivalent activity Ra_(eq)(Bq/kg),alpha index and total cancer risk were found to be 161.44±8.08 Bq/kg,0.142±0.02 and(0.21±0.05)×10^(-5) respectively.UNSCEAR/USEPA stipulated that;radium equivalent activity,alpha index,effective dose and total cancer risk should not exceed the limit of 370 Bq/kg,unity,300μSv/y and 1×10^(-4) respectively.Hence the values obtained in this work were within the acceptable limits.This implies that the ingestion or inhalation of soil is not associated with any radiological risk of concern.展开更多
文摘A survey of Fertility Cancer and Hereditary Risks in Soil Sample of Nasarawa was carried out.This study assessed the level of Fertility Cancer and Hereditary Risks from the naturally occurring radionuclides;^(232)Th,^(226)Ra and ^(40)K.12 soil samples collected from the respective part of the Nasarawa were analyzed using the gamma-ray spectrometry NaI(Tl)detector system.The mean concentration for ^(40)K was 645.29±07.32 Bq/kg,for ^(226)Ra was 28.43±4.8422 Bq/Kg and for ^(232)Th was 66.84±2.0201 Bq/Kg.The average effective dose due to the ingestion was 0.36±0.1μSv/y which was approximately 1000 times lower than the world average effective dose.Radium equivalent activity Ra_(eq)(Bq/kg),alpha index and total cancer risk were found to be 161.44±8.08 Bq/kg,0.142±0.02 and(0.21±0.05)×10^(-5) respectively.UNSCEAR/USEPA stipulated that;radium equivalent activity,alpha index,effective dose and total cancer risk should not exceed the limit of 370 Bq/kg,unity,300μSv/y and 1×10^(-4) respectively.Hence the values obtained in this work were within the acceptable limits.This implies that the ingestion or inhalation of soil is not associated with any radiological risk of concern.
