Sample of McIntyre powder inhaled by miners before going underground will be studied at Laurentian University Posted on July 24, 2018 by Janet http://www.cbc.ca/player/play/1281018435666 Share this:Share Click to email a link to a friend (Opens in new window) Email Click to share on Facebook (Opens in new window) Facebook Click to share on LinkedIn (Opens in new window) LinkedIn Click to share on YouTube (Opens in new window) YouTube Click to print (Opens in new window) Print