Finding F-0391

“During the three monitoring days, drivers and passengers onboard the tour buses were exposed to CO2 concentrations greater than 1000 ppm at least 70% of the time except Day 2.”

Chiu et al. Carbon Dioxide Concentrations and Temperatures within Tour Buses under Real-Time Traffic Conditions (2015). PloS one. Page 6. CKB 6978

Structure

Factor: Carbon dioxide (CO₂)
Setting: tour bus cabin, TW
Study design: continuous CO2 and temperature monitoring in the driver and passenger zones of three 43-seat air-conditioned tour buses during a three-day school excursion in Taiwan under real traffic conditions (class 4)
Effect: share-above 70
Averaging time: minute averages over the monitoring days
Sample: 3 rooms
Caveat: printed as at least 70 %, 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.