%0 Journal Article
%T Assessment of indoor radon-222 concentrations in the vicinity of Manyoni uranium deposit, Singida
%A Germana M Mlay
%A Ismael N Makundi
%J -
%D 2018
%X This study aimed to assess indoor radon concentrations in the vicinity of the Manyoni Uranium Deposit in Singida. The concentrations were measured for two months in 32 houses in the vicinity of Manyoni Uranium Deposit and 9 houses at Manyoni town using a portable radon gas monitor (Alpha ¨CGUARDTM). The radon concentrations ranged from 27¡À3 to 518¡À28 Bq/m3with the overall mean of 166¡À12 Bq/m3 which is above recommended values of 100 Bq/m3 and 148 Bq/m3 set by WHO (World Health Organization) and EPA (Environmental Protection Agency's), respectively. The overall mean of indoor radon concentrations from each village were Kipondoda (169¡À13 Bq/m3), Muhalala (177¡À16 Bq/m3), Mwanzi, (287¡À13 Bq/m3), Mitoo (325¡À21 Bq/m3) and Majengo (377¡À23 Bq/m3) which exceed the limit set by WHO (World Health Organization) and EPA (Environmental Protection Agency). The value of 325¡À21 Bq/m3 and 377¡À23 Bq/m3 from Mitoo and Majengo respectively, exceed the limit of 300 Bq/m3 recommended by ICRP (International Commission on Radiation Protection). Thus there is a non-negligible probability of incurring stochastic effects for people living in the vicinity of Manyoni Uranium mine. It is recommended that human activities should be controlled near the uranium deposits and dwelings should be well ventilated.
%K Indoor radon
%K Concentrations
%K Cancer
%K Manyoni uranium deposit
%K Alpha ¨CGUARD
%U https://www.ajol.info/index.php/tjs/article/view/171597