Finding F-0772

“Mean (SD) CO levels were 23.0 ppm/minute (29.0) for the maximum 15-min intervals, 16.8 ppm/minute (23.8) for maximum 30-min exposures, 12.0 ppm/minute (19.0) for maximum 60-min exposures, and 8.6 ppm/minute (13.4) for the maximum 90-min exposures.”

Havens et al. The Cooking and Pneumonia Study (CAPS) in Malawi: A Cross-Sectional Assessment of Carbon Monoxide Exposure and Carboxyhemoglobin Levels in Children under 5 Years Old (2018). International journal of environmental research and public health. Page 8. CKB 7394

Structure

Source: Biomass fuel
Factor: Carbon monoxide (CO)
Population: children under 5 years
Setting: home, MW
Study design: cross-sectional assessment at recruitment to the Cooking and Pneumonia Study, a cluster-randomised trial of cleaner-burning biomass cookstoves in rural Malawi: 48-hour personal carbon-monoxide monitoring of 1928 children under five with carboxyhaemoglobin measured in 1520 of them, against household characteristics and cooking practices from questionnaires (class 4)
Effect: other 12.0
Averaging time: maximum 60-min interval
Flags: unit-suspect
Caveat: the unit is printed as ppm/minute, which for a maximum interval average reads as ppm; taken as printed

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.