Many occupants in modern buildings complain about the indoor climate and report medical symptoms which they ascribe to the indoor environment. These symptoms are common in the general population. Technical measurements in the buildings mostly show concentrations and levels within accepted limits. A strategy is needed to handle these problems. One important part of this strategy is to use standardized questionnaires for structuring the information from the occupants.
In 1990 the California legislature mandated that the California Indoor Air Qualtty Program develop nonbinding guidelines for the reduction of exposure to volatile organic compounds (VOC) from newly constructed or remodeled office buildings. This legislation was the result of concern about increasing complaints of sick building syndrome (SBS). The resulting guidelines cover all aspects of the design, construction, and operation of new or renovated buildings.
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