Survey of Gamma Dose Rate in Air Inside Some Dwellings of the Commune of Yopougon, Abidjan, Côte d’Ivoire

Abstract

To determine the radon potential level and estimate the related exposure of the public, combined gamma dose rate and radon measurements were performed in 15 dwellings in Yopougon, the largest and inhabited commune of Côte d’Ivoire. Indoor gamma dose rates were measured using a gamma survey meter. Radon concentration measurements were performed using LR-115 films detectors (SSNTDs) for three months. The mean indoor gamma dose rate in air was 20 nSv/h whereas the mean radon concentration indoor was found to be 93.04 Bq/m 3 . The relationship between indoor radon measurements and gamma dose rates was also investigated. A very weak correlation between the two variables was observed.