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

Finding F-0158

“Significant variations were observed in indoor PM10 concentrations during classroom occupancy (up to 230 μg m−3 ) vs. non-occupancy (up to 19 μg m−3 ) days, finding levels higher than outdoor ones.”

Alonso-Blanco et al. Indoor Air Quality at an Urban Primary School in Madrid (Spain): Influence of Surrounding Environment and Occupancy (2024). Int J Environ Res Public Health. Page 1. CKB 1283

Structure

Factor
Particulate matter (PM₂.₅ and PM₁₀)
Population
primary school pupils
Setting
classroom, ES
Study design
measurement campaign at one urban primary school in Madrid: indoor and outdoor particle number concentration, PM10, PM2.5, PM1 and equivalent black carbon on occupancy and non-occupancy days (class 4)
Effect
other 230
Averaging time
maximum on occupancy days
Caveat
peak values (up to), attributed by the authors to scholarly activities in the classroom

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.