Breathing the Numbers: Making Sense of the Air Quality Index at Home and Outdoors
Each time you glance at a color bar on a weather app or notice a hazy skyline, you are seeing clues about what you are breathing. Those quiet numbers and colors come from outdoor monitoring and the air moving through your own rooms, with real consequences for lungs and long‑term wellbeing, especially over many repeated exposures.
June 10, 2026