Concerned about poor air quality? How to read the AQI. USA Today - Vertical Jul 20, 2026 Jul 20, 2026 Updated 11 hrs ago 0 This GOP Infighting Is About To Destroy Republican Midterms UK urges FIFA to investigate Argentina over Falklands banner at World Cup Rubio Blasts ICC as Threat to American Sovereignty Trump reviving election fraud claims to contest midterm results, say Democrats How to adopt a pet: Where to look, what to expect when you welcome a dog, cat 154th Open Championship preview press conference Top 5 NFL Quarterbacks Predicted to Score the Most Touchdowns in 2026 SAVE Act Sparks Outrage US forces strike Iran for the seventh night in a row Hollywood's Oldest Working Actors Might Surprise You Prefer us on Google Learn More USA TODAY's Julia Gomez explains how to read the Air Quality Index, or AQI, as concerns mount about smoke from Canadian wildfires. As featured on Wildfire smoke poses serious health risks. What to know More toxic than normal air pollution, wildfire smoke can linger in the air for weeks and travel thousands of miles. Latest video 'Rubbish': Ontario premier responds to Trump's wildfire tariff threat Concerned about poor air quality? How to read the AQI. US strikes Iran bridges and collapses a tower at a key port July Baseball is HERE | Weekly Recap | 856 Two US service members killed, one missing after attack in Jordan US forces strike Iran for the seventh night in a row Damage visible at Iran bridges and water plant after US attacks Gulf council blasts "war crimes" by Iran Facebook Twitter WhatsApp SMS Email Print Copy article link Save 0 comments
Wildfire smoke poses serious health risks. What to know More toxic than normal air pollution, wildfire smoke can linger in the air for weeks and travel thousands of miles.