Figure 4
From: Identifying indoor radon sources in Pa Miang, Chiang Mai, Thailand

(a) AIED in living rooms using different building materials. The AIED for residents in the living room ranged between 0.2 and 2.2 mSv year−1 with a mean of 0.9 mSv year−1 (represented by the blue long dashed line). (b) AIED in bedrooms using different building materials. The AIED for residents in the bedroom ranged between 0.5 and 2.5 mSv year−1 with a mean of 1.2 mSv year−1 (represented by the blue long dashed line).