Donald Trump's self-serving massive fireworks display on July 4 may cause the worst air pollution and public health disaster in Washington DC history, especially when combined with the extreme heat wave. Stay indoors, stay away, wear an N95 mask (you still have them, right, because of Covid?).
The NPS will launch 850,000 fireworks in the middle of the night. (Last year, they launched 7,000) That will dump perchlorates and heavy metals into the Potomac River and cause the amount of soot and smoke particles to skyrocket (pardon), at great danger to any creature that breathes.