For more information about National Park Service air resources, please visit http://www.nature.nps.gov/air/.


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Ozone (O3)

CURRENT 1-Hour Average

CURRENT 8-Hour Average

  • 0
    Good
  • 54
    Moderate
  • 70
    Unhealthy for Sensitive Groups
  • 85
    Unhealthy
  • 105
    Very Unhealthy

View Scale Definitions »

  • Today's Maximum O3
  • 1-HR Average
  • 8-HR Average
  • Yesterday's Maximum O3
  • 1-HR Average
  • 8-HR Average
  • Ozone is measured in parts per billion (ppb).

    Data collected at

    Ozone Health Effects | 10-Day History | Data Disclaimer

    Particulate Matter (PM2.5)

    CURRENT 1-Hour Average

    CURRENT 24-Hour Average

    • 0 µg/m3
      Good
    • 12.1
      Moderate
    • 35.5
      Unhealthy for Sensitive Groups
    • 55.5
      Unhealthy
    • 150.5
      Very Unhealthy

    View Scale Definitions »

  • Today's Maximum PM2.5
  • 1-HR Average
  • 24-HR Average
  • Yesterday's Maximum PM2.5
  • 1-HR Average
  • 24-HR Average
  • Particulate Matter is measured in micrograms per cubic meter of air (µg/m3).

    Data collected at

    Particulate Matter Health Effects | 10-Day History | Data Disclaimer

    Sulfur Dioxide (SO2)

    CURRENT 1-Hour Average

    ppm

    CURRENT 24-Hour Average

    • 0
      Good
    • 34
      Moderate
    • 144
      Unhealthy for Sensitive Groups
    • 224
      Unhealthy

    View Scale Definitions »

  • Today's Maximum SO2
  • 1-HR Average
  • 24-HR Average
  • Yesterday's Maximum SO2
  • 1-HR Average
  • 24-HR Average
  • SO2 is measured in parts per billion (ppb).

    Data collected at

    SO2 Health Effects | 10-Day History | Data Disclaimer

    Visibility & Weather

    Visibility

    Yesterday:

    MAX

    MIN

    Wind

    Temperature

    Yesterday:

    MAX

    MIN

    Humidity

    Yesterday:

    MAX

    MIN

    Precipitation

    in/hr

    Total Precipitation:

    in Today

    Yesterday



    Data collected at

    Weather 10-Day History | Data Disclaimer

    Current Air Quality

    Current Weather