Finding F-0969

“Carbon Monoxide The Mann–Whitney test shows that the use of TCs led to a significant increase in CO levels in homes to 4.2 ± 1.8 mg·m−3, a concentration 2.5 above background levels without smoking.”

Savdie et al. Passive Exposure to Pollutants from a New Generation of Cigarettes in Real Life Scenarios… (2020). International journal of environmental research and public health. Page 10. CKB 7817

Structure

Source: Tobacco smoke (secondhand smoke)
Factor: Carbon monoxide (CO)
Setting: home, PT
Study design: real-life measurement study in Portuguese homes: PM, carbon monoxide, volatile organic compounds and other pollutants measured while conventional tobacco cigarettes, heated tobacco products and electronic cigarettes were smoked indoors, against background periods without smoking (class 4)
Effect: mean 4.2
Caveat: the multiple is printed as '2.5 above background levels', without the word times

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.