• purple air

    Filters

    two monitors, one location – called co-location! This chart compares raw PM2.5 data and speaks volumes. The higher line is one of two purple air channel sensors outside a home in Smithers BC.…

  • purple air

    Visibility and Adjusting

    Our weather is variable and so is our clean air. We frequently experience fumigation events and these photos are jus a snapshot in time. This cloud drifted down from above stacks and lingered…

  • purple air

    purple air

    purple is usually the colour indicating bad or polluted air. The Smithers library now has a monitor anyone can borrow to measure the particulate in their home. Dave explains…. For video feed –…