Finding F-0914

“The mean concentration of formaldehyde, carbon monoxide (CO), and nicotine in the waterpipe cafés with fruit-flavored tobacco was 856 ± 267, 1190 ± 2150, and 7.20 ± 0.678 μg/m3, respectively.”

Masjedi Air pollutants associated with smoking in indoor/outdoor of waterpipe cafés in Tehran, Iran: Concentrations, affecting factors and health risk assessment (2019). Scientific reports. Page 8. CKB 7467

Structure

Source: Water pipe smoking
Factor: Carbon monoxide (CO)
Setting: waterpipe cafe, IR
Study design: cross-sectional measurement study in waterpipe cafes in Tehran, Iran: formaldehyde, carbon monoxide and nicotine measured indoors and outdoors by the number of active waterpipe heads, the tobacco type and the floor level, with a health risk assessment (class 4)
Effect: mean 1190
Flags: source-inconsistent
Caveat: the paper says the fruit-flavoured cafes were higher for all pollutants and reads the higher carbon monoxide as theirs, but the printed numbers put carbon monoxide higher in the traditional cafes (6120 against 1190 μg/m3); the printed standard deviation is larger than the mean

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.