Multiple active wildfires are creating hazardous air quality across Washington, but Leavenworth's Air Quality Index (AQI) on Monday was off the charts. (AirNow)Leavenworth's air quality measures far beyond HazardousBy the numbers:According to AirNow, an official government platform that monitors real-time outdoor air quality and forecasts, a monitor in Leavenworth measured an AQI of 3,592 at around 1 p.m. According to the U.S. Air Quality Index, a standardized, color-coded scale, that reading falls well above maroon Hazardous levels. To understand how severe the air quality is, take a look at the AQI scale:Green (Good): AQI 0–50Yellow (Moderate): AQI 51–100Orange (Unhealthy for sensitive groups): AQI 101–150Red (Unhealthy): AQI 151–200Purple (Very Unhealthy): AQI 201–300Maroon (Hazardous): AQI 301–500Notice how the AQI scale for maroon, Hazardous air quality caps at 500? Air quality conditions should begin to improve later in the week as winds gradually shift back onshore, helping push cleaner marine air into western Washington.