McIntyre Powder Project

  • McIntyre Powder analysis published in Journal of Occupational and Environmental Hygiene

    Andrew Zarnke and colleagues have analyzed the physical and chemical characteristics of canisters of McIntyre Powder. Their results are now published in the Journal of Occupational and Environmental Hygiene (see "JOEH McIntyre Powder analysis" under "Links"). 

    One of the critically important findings from this research is that the size of McIntyre Powder particles is extremely small.  McIntyre Powder was found to be comprised of particles that are in the fine particulate and ultrafine particulate (nanoparticle) size range. 

    Inhaled nanoparticles have the potential to enter the bloodstream from the lung and travel to other areas of the body.  Future research on the potential health consequences of McIntyre Powder inhalation will continue, now that we have a solid understanding of its physical and chemical properties. 

     


  • New! Under "Links" Tab

    Click on the "LINKS" tab on this website for two exciting NEW! postings:  

    (1) April 6, 2017 - Fifth Estate update video on the work of the McIntyre Powder Project over the year since the January 29, 2016 Fifth Estate broadcast of "The Miner's Daughter" episode.

    (2) April 6, 2017 - CBC News Report: "Ontario health agency finds 'concerning' rate of ALS in miners exposed to McIntyre Powder"



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