Jun 07 2011
As if you have a choice!
Hot, sunny weather today and tomorrow will cook up a nasty brew of ground-level ozone in the Pittsburgh area. PA DEP has cautioned that both days will be at the orange level: unhealthy for sensitive groups.
Ozone (O3) is an unstable gas that’s bad at ground level because it’s toxic but good in the stratosphere because it protects us from ultraviolet light. It’s formed when UV light acts on oxygen (O2) and other constituents to create the three-atom structure shown above.
If you have breathing problems, stay indoors.
Funny how the chemical structure of ozone looks like it’s saying “Oh No!”
(ozone chemical structure from Wikimedia Commons)
p.s. For up-to-date information on U.S. air quality, visit the Air Now website.
p.p.s. Today’s thunderstorms are keeping the air cleaner than expected. Whew!