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 94 miles • updated 04/18/2015 11:17 PM CDT
 View of Green River Valley Looking North-Northwest
Ozone (O3) at Houchin Meadow Monitoring Site  
updated 04/18/2015 11:00 PM CDT

O3 concentration Current Today's
Maximum
Yesterday's
Maximum
8-hour average 49 ppb 49 ppb   40 ppb  
1-hour average 50 ppb 52 ppb   42 ppb  

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



AQI Ozone


Particulate Matter (PM2.5) at Houchin Meadow Monitoring Site
updated 04/19/2015 12:00 AM CDT

PM2.5 concentration
Current Today's
Maximum
Yesterday's
Maximum
24-hour average 4.3 μg/m3 3.6 μg/m3
1-hour average 4.1 μg/m3 7.8 μg/m3  10.0 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 04/18/2015 11:00 PM CDT

Current temperature  70 F 
Yesterday's minimum temperature  58 F 
Yesterday's maximum temperature  72 F 
Current relative humidity  55 % 
Yesterday's minimum relative humidity  67 % 
Yesterday's maximum relative humidity  97 % 
Current wind speed  2 mph  
Current wind direction  NE 
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 04/18/2015 10:00 PM CDT

Approximate Visual Range
Current Yesterday's
Maximum
Yesterday's
Minimum
  94 miles 81 miles 13 miles

Other Research Data History
24 Hr Sulfur Dioxide (SO2) 0.3 ppb SO2 10 Day chart


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Current Air Quality »
at Houchin Meadow
Ozone - O3
updated 04/18/2015 11:00 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 4.1 micrograms per cubic meter
Particulate Matter - PM2.5
updated 04/19/2015 12:00 AM CDT
  • See more air data »
  • Current Weather »
    at Houchin Meadow
    updated 04/18/2015 11:00 PM CDT
    Temperature
    70 F

    Humidity
    55 %

    Wind
    NE-2 mph

    Precipitation - 1 hr
    0 in.

  • See more weather data »
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    Last Updated: April 18, 2015