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 37 miles • updated 07/31/2014 08:30 PM CDT
 View of Green River Valley Looking North-Northwest
Ozone (O3) at Houchin Meadow Monitoring Site  
updated 07/31/2014 08:00 PM CDT

O3 concentration Current Today's
Maximum
Yesterday's
Maximum
8-hour average 59 ppb 60 ppb   57 ppb  
1-hour average 52 ppb 64 ppb   64 ppb  

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



AQI Ozone


Particulate Matter (PM2.5) at Houchin Meadow Monitoring Site
updated 07/31/2014 08:00 PM CDT

PM2.5 concentration
Current Today's
Maximum
Yesterday's
Maximum
24-hour average 13 μg/m3 11.6 μg/m3
1-hour average 16.0 μg/m3 16.33 μg/m3  21.38 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 07/31/2014 08:00 PM CDT

Current temperature  76 F 
Yesterday's minimum temperature  57 F 
Yesterday's maximum temperature  80 F 
Current relative humidity  58 % 
Yesterday's minimum relative humidity  41 % 
Yesterday's maximum relative humidity  96 % 
Current wind speed  1 mph  
Current wind direction  ESE 
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 07/31/2014 07:00 PM CDT

Approximate Visual Range
Current Yesterday's
Maximum
Yesterday's
Minimum
  37 miles 72 miles 13 miles

Other Research Data History
24 Hr Sulfur Dioxide (SO2) 1 ppb SO2 10 Day chart


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Current Air Quality »
at Houchin Meadow
Ozone - O3
updated 07/31/2014 08:00 PM CDT
Ozone concentration is ***O3*** parts per billion air quality index (AQI) for Ozone and Particulate Matter from good to unhealthy PM 2.5 is 16.0 micrograms per cubic meter
Particulate Matter - PM2.5
updated 07/31/2014 08:00 PM CDT
  • See more air data »
  • Current Weather »
    at Houchin Meadow
    updated 07/31/2014 08:00 PM CDT
    Temperature
    76 F

    Humidity
    58 %

    Wind
    ESE-1 mph

    Precipitation - 1 hr
    0 in.

  • See more weather data »
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    Last Updated: July 31, 2014