while "unhealthy" air was detected in Washington state. The Air Quality Index measured 156 near Forks, Washington, and received a rating of "unhealthy," meaning some members of the general public may ...

Learn what the air quality index (AQI) means, how it impacts your health, and how to stay safe when pollution is high.

Erin Davis/Axios Visuals Breathe easy, Philly, because our air quality is on the up and up. Why it matters: Long-term exposure to poor air quality is harmful to your health. State of play: The average ...

Arizona is the only state with 'unhealthy' air quality. Part of it stems from our geography, but part also comes from our choices.

Arizona is the only state with an air quality index that falls in the “unhealthy” category. In 2021, Maricopa County had good air quality on only 4% of days. Air pollution in the Valley and ...