Ingestion exposure of public to natural radionuclides and committed effective dose and cancer risk through tuber crops cultivated in Ebonyi State, Nigeria.

Internal exposure of public to radiation arising from ingestion of natural radionuclides in tuber crops of Ebonyi State origin was investigated in this study. Committed effective doses and lifetime cancer risk of K, Ra, and Th in cassava, cocoyam, water yam, and white yam were calculated. The average activity concentrations of K, Ra, and Th determined by gamma spectrometric Na (TI) detector were, respectively, 199.