Air...quality?

I've whined a lot about the air quality here, so I decided to post some documentation. This picture was taken last week from a park on a nearby hill that I like to go to. The park is very large and overlooks the north part of the city. These are not clouds:



Admittedly, this was a bad day, probably the worst day last week, although the rest of the days were about the same.

This picture was taken today, at the same time and from the same place. It rained Saturday night and all day Sunday so everything looks clean, including the sky:




This is why I get up at 6am to run...the sky is a little better at that hour of the day. Of course, if I can't see the building across the street, I skip it entirely.