Finding · as stated by the study, recorded by Coridum · status verified-machine

Finding F-0687

“During the sampling period, the average indoor concentration of NO2 was 21.8 ± 2.1 ppb, while the outdoor concentration of NO2 was 10.9 ± 1.7 ppb.”

Kadiri et al. Determinants of Indoor NO2 and PM2.5 Concentration in Senior Housing with Gas Stoves… (2024). Toxics. Page 6. CKB 6069

Structure

Factor
Nitrogen dioxide (NO₂)
Population
senior housing residents
Setting
dwelling, US
Study design
environmental sampling in 73 senior housing units with gas stoves in Lowell, Massachusetts: indoor NO2 and PM2.5, fractional stove use, temperature and humidity over 5-7 days per home across all seasons, with outdoor concentrations from an EPA monitoring station and regression of determinants (class 4)
Effect
median 21.8
Averaging time
5-7 day sample, geometric mean
Sample
73 homes
Caveat
geometric mean recorded under measure median; the paired difference from outdoor was significant in all seasons

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.