EPA is reconsidering the PM2.5 standard & accepting public comments until Mar 28.
It's a once-in-a-generation opportunity & they need to hear from Utahns who are most affected.
Comment here👉 regulations.gov/docket/EPA-HQ-…
Context below 🧵
There are two PM2.5 standards: 1) annually averaged PM2.5 (set to 12 ug/m3) 2) 24-hr average PM2.5 (set to 35 ug/m3)
In UT we meet the annual avg since most of the yr we have low PM, but for a decade we exceeded the 24hr PM2.5 during winter inversion episodes.
Utah has a long fascinating air quality history that that you wouldn't believe. Understanding our history can inform where we are today & our future.
Follow along 🧵...
Why care about air pollution? Because it has enormous health & economic impacts
Air quality health research done in Utah: mdpi.com/2073-4433/11/1…
Air quality economic impacts in Utah: mdpi.com/2073-4433/11/1…