ABSTRACT
Health complaints related to indoor air quality have been reported to health offices and building owners. Indoor pollutants can be identified as resulting from the emissions of building materials, building equipment, maintenance materials, building inhabitants, as well as operations. The problem of indoor air quality attracted public attention when employees of the United States Environmental Protection Agency complained of headaches, eye irritation, fatigue, and nausea. The major indoor source of ozone is from electrical equipment and electrostatic air cleaners. The serious sources of indoor airborne formaldehyde are furniture, floor underlayment, and environmental tobacco smoke. NIOSH indicates that inadequate ventilation makes up about 52% of the problems found in indoor air investigations. Adjustment of ventilation could be a cost-effective means of reducing indoor pollutant levels. The evaluation of indoor air quality basically include physical effects, chemical effects, biological effects, and social effects.
