In 1981 the Federal-Provincial Working Group on Indoor Air Quality met for the first time. During the subsequent four years they worked to develop guidelines and recommendations for indoor air quality. The primary objective of the Working Group was to develop guidelines for the concentrations of selected contaminants of residential indoor air, taking into account such factors as the sensitivity of groups at special risk and the sources and mechanisms of action of contaminants. The second objective was to develop, where practicable, other guidelines or recommendations for measures that will preserve of improve air quality in domestic premises. It is anticipated that these guidelines will provide a reference point against which the adequacy of residential indoor air quality and remedial measures can be judged.
