radon

n.

氡（元素符号Rn）；

radon gas氡气

1. Radon is the daughter of radium.
   氡是镭的子体。
2. Where does the indoor radon come from?
   室内氡气是从哪里而来?

Residential radon exposure and lung cancer in Sweden.
Health effects of exposure to radon : time for reassessment?
The influence of radon exposures on lung cancer mortality in German uranium miners, 1946-2003.
Lung cancer risk from residential radon: meta-analysis of eight epidemiologic studies.
Linear frequency-modulated signal detection using Radon-ambiguity transform
Is the Radon Risk Overestimated? Neglected Doses in the Estimation of the Risk of Lung Cancer in Uranium Underground Miners
A model of the precaution adoption process: evidence from home radon testing.
Multifactorial study of the risk of lung cancer among French uranium miners: radon, smoking and silicosis.
Imaging of discontinuities in the inverse scattering problem by inversion of a generalized Radon transform
Lung cancer in French and Czech uranium miners: Radon-associated risk at low exposure rates and modifying effects of time since expo...