I did manage to get myself up and out this morning. I was up a little after 4:30 and running soon after 5:00. The last significant workout is now history. 6 miles with hills.
I could see stars in the sky, so I took that as a good sign about the air quality. At the bottom of the hills the air was cool, but it warmed up noticeably as I climbed. One nice thing about running that early is not having to wait for traffic at the lights. It was interesting that the lack of light gave a whole different depth contrast to the slightly rutted trail up the hill. And as a bonus on the last trip up and down the hill it was light enough to spy 7 little bunnies for a BPM of 1.17.
I made it home and into the shower about the same time I would normally get up and get in. The morning run was a fun little diversion, but I think I will still remain an after work runner for the most part.