Interesting!
I always thought it was ozone
Wow. Thought it was ozone too.
I think there is a certain amount of ozone, especially if there is a thunderstorm going on.
holy moley - I thought it was ozone too… great minds think alike, fools seldom differ…
Depends what’s in the environment. Lots of things put off an odor when they get wet. Plants, especially rosemary & mesquite. Dogs!