Despite the Obama lies, it WAS bad in LA in the mid-70’s.
It wasn’t as bad as China, they at times have smog like thick fog, sometimes even purple smog. China is worse than Pittsburgh at the peak of the steel mills.
Well could it be because LA is in a VALLEY!!?!??! Hello.
I started working in Anaheim in 1962, did not see the Fulerton hills for the first 6 months.
I lived in LA from 75 to 77. There were occasional “smog days”, mostly during the warmer months. But most of my time there, the weather was gorgeous and the air quality was fine.
I remember being on an apartment balcony up in the Hollywood hills on the Bi-Centennial with a great view of the whole LA basin. Beautiful day, a little hazy, we watched fireworks popping up all over the place during the evening. Great memory.