Some interesting measurements from Cliff Mass:
The Jury is In: Personal Fireworks Alone Can Cause Dangerous Air Pollution
This July Fourth we answered an important question: if most U.S. community fireworks displays are cancelled (because of COVID-19) might July 4th air quality be substantially improved?
We now know the answer: air quality was very poor the evening of July 4th and the immediate morning hours, in some locations as bad or worse than previous years. Personal fireworks are clearly the mainstay of the air quality disaster of July 4th.
Curious - not surprised. Also, the numbers this year need to reflect the fact that if people usually did fireworks on the 4th, they went seriously overboard this year so a lot more personal fireworks were lit off than usual. Very large fireworks are sold on tribal lands - we have a lot of these in the Pacific Northwest. The good stuff 😁
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