What’s the air quality like in LA these days?
I remember going to race driving school there back in the 70s and we had to stop in the afternoon because our lungs were burning like crazy.
Smog in LA is much, much improved, thanks largely to aggressive state requirements mandating improved pollution equipment on new cars and smog-checks-and-repairs on older vehicles before re-registration.
Not bad, compared to what it was when I was a kid in the 50s and 60s. We used to regularly be sent home from school, or they'd keep us from going out for recess, because the smog was so heavy.
Much as I hate the EPA and all of the government regulations on emissions, I've gotta admit that they made a huge difference there.