Natural radioactivity in and radon exhalation from Finnish building materials.

@article{Mustonen1984NaturalRI,
  title={Natural radioactivity in and radon exhalation from Finnish building materials.},
  author={Riitta Mustonen},
  journal={Health physics},
  year={1984},
  volume={46 6},
  pages={1195-203}
}
A total of 369 samples of Finnish building materials were tested for their 226Ra, 232Th and 40K concentrations. The rate of radon exhalation was measured from 19 samples of material and 34 dwellings were tested for their room air ventilation rate and radon concentration. The mean values of 226Ra, 232Th and 40K concentrations in ballast materials for concrete production were 34.2 Bq X kg-1, 39.0 Bq X kg-1 and 964 Bq X kg-1, with standard deviations of 18.7 Bq X kg-1, 19.5 Bq X kg-1 and 265 Bq X… CONTINUE READING

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