Most people are aware that outdoor air pollution can damage their health, but many do not know that indoor air pollution can also cause harm. Comparative risk studies performed by EPA and its Science Advisory Board have consistently ranked indoor air pollution among the top four environmental risks to the public.
Children are especially susceptible to air pollution.
For this and the reasons noted above, air quality in schools is of particular concern. Good indoor air quality contributes to a favorable learning environment for students, productivity for teachers and staff, and a sense of comfort, health, and well-being for school occupants. Understanding IAQ Problems and Solutions Over the past forty or fifty years, exposure to indoor air pollutants has increased due to a variety of factors, including the construction of more tightly sealed buildings, reduced ventilation rates to save energy, the use of synthetic building materials and furnishings, and the use of chemically-formulated personal care products, pesticides, and housekeeping supplies. Sources of Indoor Air Pollutants Indoor air contaminants can begin within the building or be drawn in from outdoors. If pollutant sources are not controlled, IAQ problems can occur, even if the HVAC system is working properly.