Indoor air quality assessment in an underground parking facility

M. El Fadel, I. Alameddine, M. Kazopoulo, M. Hamdan, R. Nasrallah

    Research output: Contribution to journalArticlepeer-review


    This paper presents an indoor air quality (IAQ) assessment in a representative underground parking facility (UPF) using carbon monoxide and volatile organic compounds as IAQ indicators. For this purpose, concentrations of both pollutants were measured at different time intervals throughout the day. Vehicular emission factors (EFs) were estimated using the EMFAC7F1.1 model. A transient mass balance model was then applied to construct concentration profiles. The ventilation rates required to maintain pollutant concentrations within acceptable standards were estimated under maximum UPF occupancy, and a sensitivity analysis was conducted to evaluate the effect of changes in EMFAC7F1.1 input parameters on EFs and ventilation rates.

    Original languageBritish English
    Pages (from-to)179-184
    Number of pages6
    JournalIndoor and Built Environment
    Issue number3-4
    StatePublished - 2001


    • EMFAC7F1.1 model
    • Indoor air quality
    • Underground parking facility
    • Vehicle emissions
    • Ventilation


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