The radon concentrations were determined in well water samples from Namom district, Southern Thailand, by using a RAD7 radon monitoring system. The measured values ranged from 0.1 to 483.0 Bq l−1, while… Click to show full abstract
The radon concentrations were determined in well water samples from Namom district, Southern Thailand, by using a RAD7 radon monitoring system. The measured values ranged from 0.1 to 483.0 Bq l−1, while the average ±1σ across all measured samples was 32.0 ± 9.2 Bq l−1. Regarding the health risks from radon in household drinking water, some settlements had radon concentration exceeding 100 Bq l−1, an upper limit set by the European Union Directive EC2013/51/EURATOM. It is of concern that the results indicate health risks, especially to those consumers who directly use well water with high radon concentration.
               
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