Carboxyhaemoglobin levels of car occupants commuting in an urban commercial/residential area

L. Abi Esber, M. El-Fadel

    Research output: Contribution to journalArticlepeer-review

    3 Scopus citations


    Biological carbon monoxide (CO) monitoring is a direct approach to assess CO exposure and associated potential health impacts. Exhaled breath CO concentrations and corresponding carboxyhaemoglobin (COHb) level of car occupants were measured before and after 45-min in-vehicle commutes along a congested road in a typical commercial/residential area using various ventilation modes. The effects of longer commutes were examined by fitting the measured in-vehicle mean CO levels with the Peterson and Stewart model for COHb level prediction. The increase in COHb level after a trip varied from 0 to 57% for a non-smoker passenger. Predicted COHb levels indicate that potential health outcomes can be manifested for trips lasting more than 70 min and characterized with low in-vehicle air exchange.

    Original languageBritish English
    Pages (from-to)184-189
    Number of pages6
    JournalIndoor and Built Environment
    Issue number2
    StatePublished - Apr 2007


    • Carbon monoxide
    • Carboxyhaemoglobin
    • In-vehicle exposure


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