Finding · as stated by the study, recorded by Coridum · status verified-machine
Finding F-0612
“the distribution was characterized by a population-weighted geometric mean of 13 Bq/m3 and a geometric standard deviation of 1.89.”
Structure
- Factor
- Thoron (radon-220)
- Population
- residential occupants
- Setting
- dwelling, CA
- Study design
- simultaneous radon (222Rn) and thoron (220Rn) measurements in 3,534 residential homes in 34 Canadian metropolitan areas covering 71 % of the population, 2007-2013; pooled log-normal analysis restricted to the 1,738 homes with thoron above the detection limit (class 4)
- Effect
- median 13
- Sample
- 3534 homes
- Caveat
- geometric mean recorded under measure median; the dispersion is a geometric standard deviation, a factor rather than an additive spread
A Finding records what one published document states, verbatim and with its page. It is not a conclusion of Coridum; see the Claims that build on it.