[pct-l] Air Quality in Sierras?

[Travis Beals]

I'd be interested in hearing feedback from hikers in the Sierras on  
the air quality they've experienced over the past few days. Some  
friends are going to be joining me in a little while, and one has mild  
asthma. I'm not in the Sierras yet, so I don't know what to tell her.  
The webcams and air quality sensors give widely varying pictures of  
what's happening, so more info is appreciated.

-Travis