OHS Canada Magazine

mcintyre powder

  • Opinion Health & Safety

    The Next Lap

    September 24, 2019 by Jean Lian

    2019 marks my 12th year covering occupational health and safety news for OHS Canada. During the past decade or so, I have learned much not just about the art of writing and editing. I have also gained an under­standing of

  • When the Dust Settles

    April 3, 2017 by Jean Lian

    From 1978 to 1979, Jim Hobbs was one of many miners in northern Ontario who inhaled finely ground aluminum dust known as McIntyre Powder, which was believed to protect them from silicosis.