Ran/walked for 40 minutes in the Rec center

Our inversion is still giving us bad air, so my wife and I went back to the rec center this morning. She walked for about 1.5 miles and I ran/walked for 40 minutes, about 2 miles. I then rode the Expresso bike for 2 miles at a relatively easy pace. More people are using the bike compared to a year ago, and I frequently don't ride the bike because it is busy with other people. Our daytime temperature today is in the low 40s (F), but the temperature last night was in the teens, hence a continuation of the inversion.