Utilization of novel bubbling device for continuous measurement of radon in water

Radon can move freely through air and water. Water radon measurement is a method of earthquake monitoring and water radon can be used as an environmental tracer to follow transit pathways. A novel bubbling device was developed for continuous detection of waterborne radon levels. Equilibrium between water and gas-phase radon concentrations in the gas path of this device is attained through circulation and bubbling. Monitoring gas radon allows dynamic tracking of water radon concentration. At the temperature of 22.6 °C, the device exhibits a sensitivity of 0.0016 CPM/Bq/m 3 and detects concentrations within the range of 0.96–180,000 Bq/m 3 .