Occupational Health Program, Department of Public Health Sciences, University of Alberta, Edmonton, Alberta, Canada WorkSafe BC-The Workers' Compensation Board, Vancouver, British Columbia, Canada.
Sawmills in the Canadian province of Alberta were surveyed in order to identify occupations at greatest risk and to guide compliance measures. Two hundred and ten wood dust samples (inhalable) were collected from nine Alberta sawmills using Institute of Occupational Medicine (IOM) personal samplers. Nine percent of samples exceeded 5 mg/m(3) 8-hour time-weighted average (TWA) for total dust. There was a significant statistical difference (p