I ran up the Mt. Si trail this AM and you can see the smoke sitting at the inversion height of about 1000 feet. It is brownish and the fog is white . If you saw it you would see why they have burn ban that and the having too much fun tax. They have to limit particulates to meet federal guidelines so they always err on the side of caution. If you want smog move to China. It's also interesting to see who thinks it's ok to break the rules because no one is looking.