Since then, I've been following the blog of James Fallows who also has been posting photos for comparison.
In the last several days -- China has done several things to try to improve the air quality for the Olympics.
- Temporarily shutting down most factories East of Beijing
- Even-Odd car restrictions
Both of these are huge undertakings. Consensus, so far, is that the measures are not working. That said -- I heard it's supposed to rain soon, and there really hasn't been a decent rain in Beijing since the shut-downs and traffic restrictions.
James Fallows' "Weather" Photos for July
July 2, 2008 East or west, home is best

July 12, 2008 With 26 days to go

July 15, 2008 Something familiar, something new

July 19, 2008 Everything changes tomorrow

July 26, 2008 Sunday morning Beijing

July 27, 2008 Eleven days to go

So, that's the view in Beijing. It's not really pollution, it's Olympic Spirit In The Air!