Fireworks contributed to bad air days in 2018
Fireworks shows are captivating, but last year they contributed to five days of bad air quality in July.
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Raymond Lutz 08:41 on 2019-06-05 Permalink
This makes for a catchy headline but how much did they contributed? Reading the article (and the RSQA 2017 bilan), I understand that the fireworks helped pass the arbitrary threshold of 30 ug/m**3 . But what if it simply went from 29 to 30.5 ? For a few days? I call clicbait.
En passant, Le Devoir doesn’t point it out but ‘particules fines’ refers to PM2.5 , ie atmospheric particulate matter (PM) that have a diameter of less than 2.5 micrometers. Would you believe me if I told you I had a tag for my bookmarks labelled pm2.5 ? 😎 For now, not much there, but it’s growing… Browsing it, you’ll learn that there is no “safe” level for PM2.5 exposure and that “there is a strong association between PM2.5 exposure and neurological disorders”. Yup, those baddies creep INSIDE your brain. So our leading puppets say a day with 29 ug/m**3 of PM2.5 is a good day? Bullshit. Anecdote: the illustrator of “Bilan environnemental 2017, Qualité de l’air à montréal” completely screwed its drawing showing the scale of a PM2.5 dust particule (p.4).