Results: The amount of demolition workers’ exposure was in the range of 0.085e0.185 mg/m3. The range
of relative risk of silicosis related mortality was increased from 1 in the workers with the lowest exposure
level to 22.64/1,000 in the employees with high exposure level. The range of the excess lifetime risk of
mortality from lung cancer was in the range of 32e60/1,000 exposed workers.