Is there a routine recommended IAQ test?
No. There is no routine “litmus” test for good/bad IAQ in environments where there is no known specific contaminant. This is due to the diversity of possible contaminants and the fact that analysis of individual contaminants in air samples may not reveal significant concentrations while combinations of several contaminant or conditions may have adverse effects. For these reasons, the preferential method of approaching any IAQ investigation where the symptoms are non-specific and potentially related contaminants are unknown is to perform an initial observational site survey. The purpose of this survey is to develop an initial hypothesis and recommendations.