Finding F-1441

“The percentages of the minute average CO2 concentrations over 1000 ppm for each day were 74.8%, 56.3%, and 74.5%, for a combined average of 71.2% in bus A; 96.4%, 38.3%, and 71.1%, for a combined average of 68.8% in bus B; 90.0%, 31.9%, and 74.1%, for a combined average of 64.5% in bus C.”

Chiu et al. Carbon Dioxide Concentrations and Temperatures within Tour Buses under Real-Time Traffic Conditions (2015). PloS one. Page 5. CKB 6978

Structure

Factor: Carbon dioxide (CO₂)
Setting: tour bus
Study design: measurement of carbon dioxide and temperature in the driver and passenger zones of three tour buses over three days of normal service (class 4)
Effect: share-above 71.2 per 1000 %
Caveat: a share of time, not of journeys

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.