Finding F-0628

“The averaged radon concentrations grouped according to flooring type in workrooms were 327 Bq/m3 for parquet, 227 Bq/m3 for ceramic tiles, 146 Bq/m3 for vinyl flooring and 71 Bq/m3 for laminate.”

Gulan Radon levels and indoor air quality after application of thermal retrofit measures—a case study (2023). Air quality, atmosphere, & health. Page 1. CKB 8811

Structure

Source: Flooring
Factor: Radon
Population: office workers
Setting: basement workroom with parquet flooring, RS
Study design: case study of radon in workrooms of a thermally retrofitted public building in Serbia: one-month continuous measurement with a digital detector in 10 workrooms during the 2018/19 heating season and charcoal canister measurements in all basement workrooms in spring 2021, grouped by flooring type (class 4)
Effect: mean 327
Averaging time: charcoal canister measurement, spring 2021

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.