Here is the related article:
Here is the summary of America's most polluted cities:
The nation's 10 most polluted cities in terms of ozone.
|City||State||Average ozone level (2005-2006)|
The nation's 10 most polluted cities by amount of particulates.
|Metro area||State||Average particles level (2005-2007)|
While this data does not have direct correlations with real estate price, I certainly want to avoid living in these cities.
As for the LA, I found air fairly clean near the coast. But in inland, it is quite bad. In terms of that, it has correlations with real estate price!