On a crisp winter morning, when the sun struggles to cut through a grey, smoky haze, many of us glance at the air-quality index like a daily horoscope, the number that decides whether we mask up, skip ...

As more than 800 wildfires burn across Canada, including dozens of out-of-control fires in western Ontario, the resulting smoke has worsened air quality in various parts of the United States, ...

Arizona's Family meteorologist Ian Schwartz joins the show to explain why the Phoenix air quality index (AQI) is approaching a staggering 500. With a normal AQI sitting between 0-50, Schwartz explains ...