Concentration of radon in water is measured in Champhai district and Serchhip District of Mizoram using Smart
RnDuo, and the seasonal variation have been measured during winter, summer and monsoon seasons. The water samples have
been collected from streams, springs, pumps, open well and government supplied water. Seasonal variation of radon
concentration in water for Champhai district was found to be 7.85 Bq/L in winter, 16.25 Bq/L in summer and 10.17 Bq/L in
monsoon. In Serchhip district, it was found to be 3.19 B/L in winter, 16.60 Bq/L in summer and 7.09 Bq/L in monsoon. The
radon concentration measured was found to be well within the range which is considered safe .
