Polonium-210: removal from smoke by resin filters.

@article{Bretthauer1967Polonium210RF,
  title={Polonium-210: removal from smoke by resin filters.},
  author={E W Bretthauer and S C Black},
  journal={Science},
  year={1967},
  volume={156 3780},
  pages={1375-6}
}
Use of a mixed ion-exchange resin as a filter for cigarettes markedly reduces both the total amount of polonium-210 in mainstream smoke and the picocuries per milligram of smoke. This procedure effectively minimizes exposure of the lungs of smokers to alpha irradiation.