Radium workers showed many acute symptoms and signs of their exposure.
Radium jaw - Necrosis from lost teeth and bacterial infection
The air breathed by the Radium workers had enough Radon to be detected
using an ionization chamber (radiation detector).
Enough activity in bones to expose films, generating pictures of their skeletons.
The young women applied radium to their buttons, their fingernails, their eyelids;
at least one, a lively Italian girl, coated her teeth with it before a date, for a smile
that glowed in the dark.” Radium Girls, 1997