Indoor radon activity concentrations and radon doses on the ground floor and
basement floor of 19 schools (kindergardens, primary schools, secondary
schools, and high schools) and thermal spas of Ilgin district in Konya, have
been measured using the AlphaGUARD PQ 2000PRO radon detector, for three days
in the first half of 2016. According to the results, while the indoor radon
concentration for only one location, in total, is above the Turkish action
level of 400 Bqm?3, the values for 10 locations are above the reference
level of 100 Bqm?3, recommended by WHO. The calculated annual effective
doses for inhalation of the radon in indoor air were also found to be 0.26
?Sv for the minimum and 4.36 ?Sv for the maximum. The parametric
distribution analysis is also performed with 3-parameter Weibull
distribution and some remarks are provided on radon concentration activity.