Finding F-0161

“Coarse particles remained the major fraction during OA as well (54% of PM10), with an average concentration of 108.3 μg/m3.”

Rovelli et al. Airborne particulate matter in school classrooms of northern Italy (2014). International journal of environmental research and public health. Page 14. CKB 6882

Structure

Factor: Particulate matter (PM₂.₅ and PM₁₀)
Population: schoolchildren
Setting: classroom, IT
Study design: measurement study of indoor size-fractioned particulate matter in classrooms of seven schools in Milan over two sampling campaigns (5-day and 24-h means), compared with outdoor levels and WHO guideline values (class 4)
Effect: mean 108.3
Averaging time: periods of other activities (OA) in the classroom
Caveat: coarse fraction filed under particulate-matter, there is no coarse-particle slug

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.