Just in time for the 4th of July, NOAA says there is a big spike in PM2.5. From the Washington Post, July 4 fireworks spark astonishing spike in air pollution, NOAA study finds
Every July 4, the 14,000-plus dazzling fireworks displays across the nation have a toxic effect on our atmosphere. A new NOAA study shows they temporarily increase particulate pollution by an average of 42 percent.
It’s back to normal in 16 hours. I wonder if anyone has come up with my pollution exposure if I decided to head up I95 to DC.