CBC: New research shows what exactly was in McIntyre Powder – a substance meant to protect lungs of miners

“Between the 1940s and the late 70s, some miners were told breath in McIntyre Powder before each shift. It was supposed to protect their lungs, but years later these workers developed health issues. New research shows just what was in McIntyre Powder. The CBC`s Angela Gemmill spoke about the findings with researcher Andrew Zarnke and Janice Martell, the founder of the McIntyre Powder Project.”

Audio: New research shows what exactly was in McIntyre Powder – a substance meant to protect lungs of miners
Source: CBC Morning North
Date: September 23, 2019