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Likely due to wild fires all along the inner coast on both sides of the border:

https://firms.modaps.eosdis.nasa.gov/map/#d:24hrs;@-121.6,48.5,7.5z

Try to reduce time spent outside and wear a K/N95 or P100 mask if you do.

Look into purchasing (or making) an active air filtration system for your home:

https://housefresh.com/

*The linked service (Windy) adheres to the WHO’s AQI standards which more heavily weigh levels of PM2.5 (particulate matter 20 times smaller than a human hair) and I only post these because the government, nor any of the news services, report this at all.  
¯\_(ツ)_/¯

  • breakfastmtn@lemmy.ca
    31·
    23 days ago

    I’ve seen a few of these warnings posted. I’m literally outside all day every day and I’ve yet to notice poor air quality. Except for one day where we had visible haze first thing in the morning but that was reported by other weather services.

    • snoons@lemmy.caOPEnglish
      2·
      23 days ago

      These AQI forecasts are adhering to the World Health Organizations standard which more heavily weighs levels of PM2.5 (Canada apparently doesn’t at all) which can’t be seen or really noticed in anyway except by those who are really young, old or are already suffer from respiratory disease.

      PM2.5 is particulate matter that is smaller than 2.5 microns; so, anything smaller than most bacteria and mould spores which can’t be seen by humans as that is ~20 times smaller than a hair. Because it’s so small, it can reach very far into lung tissues and in some cases even breach cell walls. When levels are this high there is almost certainly damage being done on a cellular level if one isn’t wearing proper protection and this greatly increases chances for disease such as cancer.

      I don’t know why none of the news services report this, likely because they don’t know and the government doesn’t report it either. ¯\_(ツ)_/¯