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 34 miles • updated 01/28/2015 08:00 AM CST
 View of Green River Valley Looking North-Northwest
Ozone (O3) at Houchin Meadow Monitoring Site  
updated 01/28/2015 08:00 AM CST

O3 concentration Current Today's
Maximum
Yesterday's
Maximum
8-hour average 24 ppb 25 ppb   20 ppb  
1-hour average 22 ppb 27 ppb   22 ppb  

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



AQI Ozone


Particulate Matter (PM2.5) at Houchin Meadow Monitoring Site
updated 01/28/2015 08:00 AM CST

PM2.5 concentration
Current Today's
Maximum
Yesterday's
Maximum
24-hour average 7.2 μg/m3 6.6 μg/m3
1-hour average 6.4 μg/m3 7.9 μg/m3  10.2 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 01/28/2015 07:00 AM CST

Current temperature  22 F 
Yesterday's minimum temperature  30 F 
Yesterday's maximum temperature  33 F 
Current relative humidity  76 % 
Yesterday's minimum relative humidity  80 % 
Yesterday's maximum relative humidity  92 % 
Current wind speed  2 mph  
Current wind direction  ENE 
Precipitation in last hour  0.00 in. 
Precipitation since midnight  0.00 in. 
Yesterday's precipitation  0.01 in. 


More Air Quality Monitoring at Houchin Meadow Monitoring Site
  updated 01/28/2015 07:00 AM CST

Approximate Visual Range
Current Yesterday's
Maximum
Yesterday's
Minimum
  34 miles 37 miles 6 miles

Other Research Data History
24 Hr Sulfur Dioxide (SO2) 2 ppb SO2 10 Day chart


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Current Air Quality »
at Houchin Meadow
Ozone - O3
updated 01/28/2015 08:00 AM 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 6.4 micrograms per cubic meter
Particulate Matter - PM2.5
updated 01/28/2015 08:00 AM CST
  • See more air data »
  • Current Weather »
    at Houchin Meadow
    updated 01/28/2015 07:00 AM CST
    Temperature
    22 F

    Humidity
    76 %

    Wind
    ENE-2 mph

    Precipitation - 1 hr
    0 in.

  • See more weather data »
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    Last Updated: January 28, 2015