Maybe its the worst. But its way better then it was and there are a lot more cars.
That graph reminds me of a year in my college career. After growing up in western Canada, I spent the 1972-73 school year in Pasadena. After a year of eye-burning smog, I left Caltech for MIT. I remember sitting under the air conditioner in a lecture hall, where the cold air coming out felt like 10% sulfuric acid. It etched my eyeballs.
It’s much better now, but no liberal will admit it.