Finding F-0447

“7 of 21 cases had more than 5% of the MT above 1000 ppm, and 11 of 21 cases had more than 10% of the MT above 1000 ppm during winter.”

Alonso Assessing the indoor air quality and their predictor variable in 21 home offices during the Covid-19 pandemic in Norway (2022). Building and environment. Page 10. CKB 8721

Structure

Factor: Carbon dioxide (CO₂)
Population: home-office workers
Setting: home office, NO
Study design: measurement study in 21 home offices in Trondheim (Norway) during the COVID-19 pandemic: CO2, formaldehyde, TVOC, temperature and relative humidity logged with calibrated low-cost sensors for at least one week in winter (11 homes also in summer), predictors analysed with generalized estimating equations (class 4)
Effect: prevalence 11
Averaging time: share of measured time, winter week
Sample: 21 homes
Caveat: the sentence follows the heading 'Carbon dioxide' in the text layer; recorded as a count of homes under measure prevalence

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.