Mummy always said eating paint was bad for me.
Those people need to get out more, they have far to much time on their hands dreaming up better ways to panic the community.
Radon gas, will indeed collect in significant amounts inside enclosed, 'UNVENTILATED' spaces.......solution, simply open the windows as several local authorities recommend in areas were ground radon emissions have been documented.
As for Instrument dials making people glow in the dark, as has been pointed out earlier, considerable amounts of the substance would need to come into close contact, i.e. licking paint brushes, for it to be of any significant danger and those involved in maintainance on these legacy instruments are well aware of the problem and take the required precautions, the simple expedient of spraying the face with a clear water based plastic coating to seal the original paint would do the job.
Seriously though this subject was aired in depth last year regarding minute 'TRACE' readings currently being washed up on a beach the results of disposal of instrument dials in the local area, the same scare mongering went on then by people who by virtue of there position should have known better but could not resist the tempation of getting there names in lights.