ABSTRACT
“Dilution is the solution to pollution” is a common theme of many Indoor air quality (IAQ) programs, leading to greater introduction of air to dilute indoor contaminants. Some researchers say that the extent of IAQ problems related to microbial contamination has previously been quite underestimated. Some attribute this to a “chemical materials bias” and to a lack of interaction and understanding between the environmental health and microbiology communities. Finding the cause of an IAQ problem can be similar to solving simultaneous equations, and in this instance, each equation represents a different building system. Furthermore, IAQ problems seldom affect everyone in a building, or affect everyone in the same way. This leads to skepticism over whether there is indeed a problem at all. An IAQ policy can provide important overall direction and guidance, and can demonstrate part of a good faith effort to provide an environment with acceptable IAQ.
