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

has ranked third on the list of cities with the worst air quality with an AQI score of 275 at 9am Tuesday morning. Tuesday's air was classified as 'very unhealthy, ‘indicating a severe health threat, ...

The Air Quality Index measured 156 near Forks, Washington, and received a rating of "unhealthy," meaning some members of the ...

The Bangladesh Department of Environment, which gives immediate updates on air quality, said that Dhaka’s AQI score was 201 at 11am, which is considered “very unhealthy”. Air quality is ...

Nearby La Cañada-Flintridge is experiencing very unhealthy air quality, as are El Monte, Arcadia and West Covina from the Eaton Fire and Santa Monica, Malibu and Marina del Rey due to the Palisades ...