Finding F-1308

“The daily median values of the personal, home indoor, and central site outdoor PM2.5 were 3.3, 3.9, and 4.2 μg/ m3 , respectively.”

Wood stove use and other determinants of personal and indoor exposures to particulate air pollution and ozone among elderly persons in a Northern Suburb (2019). Indoor air. Page 4. CKB 7615

Structure

Factor: Particulate matter (PM₂.₅ and PM₁₀)
Population: elderly panel participants
Setting: personal exposure of the participant, FI
Study design: panel study of 37 elderly people in the Helsinki area between November 2008 and May 2009: each participant carried a personal sampler for 22 hours a month while fine particulate matter, its absorbance and ozone were measured at the same time in the home, against a central outdoor measurement site, with determinants of exposure from diaries and questionnaires (class 4)
Effect: median 3.3
Caveat: a heating-season panel in one city

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.