Today is the fourth anniversary of the Smog Blog. We started out for a couple weeks in email in order to track air pollution coming into Baltimore so we knew when to run the UMBC lidar. We quickly went to the weblog and national coverage. Here's our first notation of air quality, back in September 23, 2003. Happy 4th anniversary!
Posted by Jill Engel-Cox at September 23, 2007 8:57 PM