Radon exposure in residential premises and basements in settlement of Northern Kazakhstan: a case study near a dormant uranium mine
摘要
The purpose is a case study of the ambient dose equivalent rates and the indoor radon concentration in the premises and basements of Saumalkol settlement, located near a dormant mine. Radon concentrations in premises ranged from 25 to 2 470 Bq m−3, with an average of 956 Bq m−3, resulting in an annual radiation exposure of 20 mSv y−1. In contrast, basement concentrations ranged from 18 to 82 400 Bq m−3, with a mean of 10 730 Bq m−3, corresponding to an alarming radiation exposure of 6 mSv y−1. The higher concentrations in basements are attributed to poor ventilation and proximity to a dormant mine.