Indoor Air Carbon Monoxide (CO) Summary Statistics

Langan Model T15n Enhanced CO monitor has been used by Water and Air Quality Bureau to measure carbon monoxide levels across Canada. This table is a summary of carbon monoxide measured inside homes between 2007 and 2015 at 1 minute intervals (with the exception of Ottawa* which recorded every 5 minutes) All of the homes included in this summary table are from non-smoking households. Some homes were sampled again the next season.

Organization: Health Canada | Santé Canada

Last modified: 2025-10-02T19:42:37.105494