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This paper shows the results of a survey conducted among 10 AIVC members countries about air quality in garages and current requirements and regulations in this regard. Large differences were found among countries, not only in terms of the scope of the regulations, but also in relation to the parameters that are considered.  

The exposure of children to indoor air pollutants in school classrooms might cause them adverse health effects. In order to confront this issue, the in-depth study and evaluation of the indoor air quality in classrooms is necessary. The aims of this study are to characterize the environmental factors that affect indoor air quality.

In order to explain the effect of ventilation systems, the article presents the results of investigations made on a simulation program to calculate the temperature, heat loads, ventilation rates and indoor air quality. The study considered the Japanese daily schedule and the residents behaviour in regard to maintaining comfort. The indicators of indoor air quality were taken to be carbon dioxide, carbon monoxide and formaldehyde concentrations. Three systems were analysed: basic passive ventilation system, a passive stack ventilation system and a mechanical ventilation system.

The provision of underground parking facilities (UPFs) has become a necessity particularly in densely populated urban areas and business districts. Indoor air quality (IAQ) in such facilities is of great concern due to vehicle induced emissions. This paper presents and IAQ assessment at six representative UPFs in Beirut 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.

We spend 90% of our time indoors, so we have to consider how a home's design and construction can affect indoor air quality. To achieve superior indoor air quality it is important to:

• remove any contaminants at the source of production;
• reduce the contaminants built into the house;
• exchange the indoor air with.fresh outdoor air.