Finding F-0948

“Within the seven schools with pre- and post-renovation data, over 30% of indoor CO2 measurements and over 50% of indoor temperatures exceeded recommended guidelines from the American Society of Heating, Refrigerating, and Air Conditioning Engineers.”

Zaeh et al. Indoor Air Quality Prior to and Following School Building Renovation in a Mid-Atlantic School District (2021). International journal of environmental research and public health. Page 1. CKB 8366

Structure

Factor: Carbon dioxide (CO₂)
Setting: classroom, US
Study design: before-and-after study of school building renovation in a Mid-Atlantic school district of the United States: indoor carbon dioxide, carbon monoxide, PM2.5 and temperature measured during school hours in seven schools before and after renovation, with linear mixed models (class 3)
Effect: share-above 30
Sample: 7 rooms
Caveat: stated as 'over 30 %', so the figure is a lower bound

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.