Air monitoring also found variation in air pollution levels between the schools’ playgrounds and the pick-up/drop-off lines.
Indoor air still reflects trends in outdoor air quality with a delay, depending on pollution type, of about an hour.
A study shows how lockdown policies exposed some groups to COVID-19 risk in Salt Lake County.
Air pollution dropped more in commercial than residential areas, and residential emissions rebounded faster following reopening.
Wildfire and firework smoke are more impactful to indoor air than inversions.
Could a forecast of snow change how you get to campus?