Ventilation and Indoor Air Quality:Air Pollutants and Contaminants

Air Pollutants and Contaminants

Air pollutants and contaminants are unwanted airborne constituents that may reduce the acceptability of air. The number and variety of contaminants in the air is enormous. Some contaminants are brought into the conditioned space from outside, and some are generated within the space itself. Figure 4.1 lists some of the most common indoor air contaminants and their most common sources.