Finding F-0703

“The indoor 24-h concentrations of NO2 ranged from 6.8 to 9.8 μg/m3 with the median of 8.1 μg/m3 for Dąbrowa Górnicza and from 4.2 to 13.5 μg/m3 with the median of 7.8 μg/m3 for Złoty Potok.”

Błaszczyk Indoor air quality in urban and rural kindergartens: short-term studies in Silesia, Poland (2017). Air quality, atmosphere, & health. Page 7. CKB 7288

Structure

Factor: Nitrogen dioxide (NO₂)
Population: preschool children
Setting: kindergarten in the urban town of Dąbrowa Górnicza, PL
Study design: short-term measurement campaign in two kindergartens in Silesia, Poland - urban Dąbrowa Górnicza and rural Złoty Potok: indoor and outdoor 24-hour samples of PM2.5, 15 PM2.5-bound polycyclic aromatic hydrocarbons, sulphur dioxide and nitrogen dioxide, with the Salmonella mutagenicity of the PM2.5 extracts (class 4)
Effect: median 8.1
Averaging time: 24 h
Caveat: the indoor-to-outdoor ratio below one points to outdoor traffic and heating as the source; the text layer prints the unit of this median as μg/m 3

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.