Air quality levels are gonna be baaad on the home commute and I didn't bring my pollution mask with me :/
A bad day in DC is better than a good day in Beijing, so we should consider ourselves lucky.

I ride regardless of the air quality warnings. Didn't even know there was one til you mentioned it.
Worked this weekend so the one day off yesterday didn't seem like enough. Ride in this morning was nice though. Coolest sight this morning was two Buddhist monks decked out in their red robes riding CaBi bikeshare bikes. Had to do a double take. I was also amazed how quickly they'd removed the trash from the National Mall. It was all gone this AM. Kudos to the cleanup crews!
Lots of cycling in my life this month. Continued commuting, an overnight bike camping trip, and, of course, my daily dose of the Tour de France. I love it!