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


Great Smoky Mountains National Park

  • View From Purchase Knob
    Looking Northeast
  • Air Data
    & Weather
  • NPS Air
    Webcams
updated 10/21/2014 07:30 PM EDT
View from Purchase Knob Looking Northeast
Ozone - O3  updated 10/21/2014 07:00 PM EDT

O3 concentration Current Today's
Maximum
Yesterday's
Maximum
8-hour average 43 ppb 43 ppb   41 ppb  
1-hour average 41 ppb 45 ppb   43 ppb  

*Ozone (O3) is measured in parts per billion (ppb)


AQI Ozone


Weather

Current temperature   unavailable  
Yesterday's minimum temperature  unavailable 
Yesterday's maximum temperature  unavailable 
Current relative humidity  unavailable  
Yesterday's minimum relative humidity  unavailable 
Yesterday's maximum relative humidity  unavailable 
Current wind speed   unavailable 
Current wind direction unavailable
Precipitation in last hour   NA 
Precipitation since midnight  0.00 in. 
Yesterday's precipitation  0.00 in. 

*Air quality monitoring at Purchace Knob is jointly supported by the Friends of Great Smoky Mountains NP, the National Park Service, the State of North Carolina - Division of Air Quality, and the National Oceanic and Atmospheric Administration.





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Last Updated: October 21, 2014