6:10 PM: Faint trace of something in the air. I cannot say what it is. Cloudy, 80 degrees.
7:00 PM: Something is in the air. Doesn't smell like wood. Not sure what it is.
8:35 PM: Faint wood smoke.
9:00 PM: Light wood smoke. It's getting smoky.
9:45 PM: No wood smoke. The burning stopped or the wind shifted.
11:00 PM: No wood smoke.
Today was a very low air pollution evening for North St. Paul, MN.