• November 29, 2021 - December 05, 2021 Smoke Plume Concentration (North America)

    • Low density
    • Medium density
    • High density
  • Latest 24-hour Average PM2.5 Concentration (µg/m³)

    • Good
    • Moderate
    • Unhealthy for Sensitive Groups
    • Unhealthy
    • Very Unhealthy
    • Hazardous