THE DIFFICULTIES WITH LOW-LEVEL ASBESTOS EXPOSURE ASSESSMENTS IN PUBLIC, COMMERCIAL, AND INDUSTRIAL BUILDINGS

A method by which the airborne concentration of asbestos, low enough t o substantiate that a significant health risk does not exist, is prese nted. The method is different from that used for the determination of occupational exposure, which is shown to be inadequate in this concent ration range and a justification of how, this alternative procedure mi ght be used to achieve compliance is put forward. The difficulties ass ociated with both the physical measurement and the significance of the concentrations that are determined are discussed.