Smog in LA

Everybody probably heard stories about smog in LA basin. I certainly did and I did not believe them. I do now. The smog is clearly visible even on a sunny, windy day. I don't really understand how the smog can stay in the basin, since quite strong winds move from sea to inland.
I'm also not sure where does it come from. They say that the small particle component of the smog comes from China (about 1/3 of it). The rest probably comes from cars (we have many of them and no smog in SD) and heavy industry (there is still some left?).
I'm sure it is not healthy to breath such polluted air, but it is nor really bothersome, so it is probably not as bad as it is in China.
Other than that, LA is not really interesting city (not much to see), but there are places ($5m and more) where you could live comfortably, if you really have to.

Question of the day

Q: What four Czechs that meet on Sunday in LA have in common?

A: They all want to go back to Czech Republic.

P.S. Four is not enough for law of large numbers, so I don;t think this is necessarily general perception. It also should not suggest that life in the US is bad - it is probably better than in most countries. But it might suggests that young, probably middle-class, educated people find living at Czech Republic more appealing than being (possibly) rich (wealthy) elsewhere. Well, no surprise there - money can buy only so much.