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


Mammoth Cave National Park

  • View of Green River Valley
    Looking North-Northwest
  • Air Data
    & Weather
  • NPS Air
    Webcams
Visual Range is about 99 miles • updated 12/17/2014 03:15 PM CST
 View of Green River Valley Looking North-Northwest
Ozone (O3) at Houchin Meadow Monitoring Site  
updated 12/17/2014 03:00 PM CST

O3 concentration Current Today's
Maximum
Yesterday's
Maximum
8-hour average 20 ppb 20 ppb   23 ppb  
1-hour average 26 ppb 26 ppb   27 ppb  

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



AQI Ozone


Particulate Matter (PM2.5) at Houchin Meadow Monitoring Site
updated 12/17/2014 03:00 PM CST

PM2.5 concentration
Current Today's
Maximum
Yesterday's
Maximum
24-hour average 3.9 μg/m3 3.5 μg/m3
1-hour average 0.0 μg/m3 8.0 μg/m3  8.3 μg/m3

*Particulate Matter (PM2.5) is measured in micrograms per cubic meter (μg/m3)



Particulate Matter (PM2.5)


Weather at Houchin Meadow Monitoring Site  updated 12/17/2014 03:00 PM CST

Current temperature  39 F 
Yesterday's minimum temperature  37 F 
Yesterday's maximum temperature  55 F 
Current relative humidity  59 % 
Yesterday's minimum relative humidity  71 % 
Yesterday's maximum relative humidity  88 % 
Current wind speed  4 mph  
Current wind direction  WSW 
Precipitation in last hour  0.00 in. 
Precipitation since midnight  0.00 in. 
Yesterday's precipitation  0.00 in. 


More Air Quality Monitoring at Houchin Meadow Monitoring Site
  updated 12/17/2014 03:00 PM CST

Approximate Visual Range
Current Yesterday's
Maximum
Yesterday's
Minimum
  99 miles 185 miles 24 miles

Other Research Data History
24 Hr Sulfur Dioxide (SO2) 0.5 ppb SO2 10 Day chart


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Current Air Quality »
at Houchin Meadow
Ozone - O3
updated 12/17/2014 03:00 PM CST
Ozone concentration is ***O3*** parts per billion air quality index (AQI) for Ozone and Particulate Matter from good to unhealthy PM 2.5 is 0.0 micrograms per cubic meter
Particulate Matter - PM2.5
updated 12/17/2014 03:00 PM CST
  • See more air data »
  • Current Weather »
    at Houchin Meadow
    updated 12/17/2014 03:00 PM CST
    Temperature
    39 F

    Humidity
    59 %

    Wind
    WSW-4 mph

    Precipitation - 1 hr
    0 in.

  • See more weather data »
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    Last Updated: December 17, 2014