Finding F-0167

“Finally, t-test analysis was performed to compare indoor PM2.5 mass concentrations during weeks with and without dust events and suggested a large difference: 18.0 μg/m3 during dust event weeks and 37.5 μg/m3 during non-dust event weeks (p = 0.04).”

Yuan et al. Dust Events and Indoor Air Quality in Residential Homes in Kuwait (2020). International journal of environmental research and public health. Page 6. CKB 7780

Structure

Factor: Particulate matter (PM₂.₅ and PM₁₀)
Setting: home, KW (September 2017 to March 2018)
Study design: measurement study: indoor and outdoor particle samples (black carbon and 19 trace elements, PM2.5 and PM10) at 10 residences in Kuwait City during dust and non-dust event weeks, September 2017 to March 2018 (class 4)
Effect: mean 37.5
Averaging time: weekly samples
Sample: 10 homes
Caveat: indoor levels were higher in normal weeks, which the authors attribute to more open homes and higher particle penetration

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.