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

Finding F-1525

“PM1, PM2.5 and PM10 concentrations measured in the five classrooms during spring were, on average, 17.2 ± 4.4, 18.1 ± 4.7, 32.7 ± 10.0 μg·m−3 respectively.”

Indoor air quality in naturally ventilated Italian classrooms (2015). Atmosphere. Page 9. CKB 0015

Structure

Factor
Particulate matter (PM₂.₅ and PM₁₀)
Setting
classroom, IT
Study design
measurement campaign in five naturally ventilated Italian classrooms: particle mass and number, black carbon and carbon dioxide measured indoors and outdoors in winter and in spring during lessons (class 4)
Effect
mean 32.7
Caveat
the sentence prints the spread as a plus-minus value without naming it; the study sets these against the 24-hour values of 25 and 50 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.