Finding · as stated by the study, recorded by Coridum · status verified-machine
Finding F-1394
“Levels of PNC and PMC in schools ranged between 33.0-168.0 part/cm3 and 1.7-6.8 μg/m3, respectively.”
Structure
- Factor
- Particulate matter (PM₂.₅ and PM₁₀)
- Setting
- classroom
- Study design
- study in schools: particle number and particle mass concentrations in the size range 0.3 to 10 micrometres were measured with an optical particle sizer in classrooms during lessons, and the annual incidence of doctor-diagnosed asthma of the 3,638 children aged 6 to 11 was taken from medical records for each school (class 4)
- Effect
- mean 6.8
- Caveat
- measured during lessons with an optical particle sizer from 0.3 micrometres upwards, so the finest particles are not included
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.