Sources of Indoor Air Contamination on the Ground Floor of a High-Rise Commercial Building

Abstract

Indoor air quality is a subject of growing concern in the developed world. Many sources of indoor air contamina tion in commercial and office buildings are recognised and have been investigated. In addition to the usual internal sources of air contaminants, other external sources from attached facilities can find their way into the building. This report presents the results of an indoor air quality survey in a high-rise office building which demonstrated an obvious seasonal change in regard to the concentrations of carbon dioxide (CO₂), nitric oxide (NO) and nitrogen dioxide (NO₂). Furthermore, a comple mentary survey in the same building was carried out to identify the relevant sources of air contamination in the building and the results indicated that an attached train station and the nearby street traffic had a significant impact on indoor air quality.

Keywords

Indoor air Air monitoring Sources of contamination Seasonal changes

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