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 71 miles • updated 10/23/2014 12:45 PM CDT
 View of Green River Valley Looking North-Northwest
Ozone (O3) at Houchin Meadow Monitoring Site  
updated 10/23/2014 01:00 PM CDT

O3 concentration Current Today's
Maximum
Yesterday's
Maximum
8-hour average 19 ppb 20 ppb   32 ppb  
1-hour average 30 ppb 31 ppb   34 ppb  

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



AQI Ozone


Particulate Matter (PM2.5) at Houchin Meadow Monitoring Site
updated 10/23/2014 01:00 PM CDT

PM2.5 concentration
Current Today's
Maximum
Yesterday's
Maximum
24-hour average 3.6 μg/m3 2.6 μg/m3
1-hour average 3.9 μg/m3 4.982 μg/m3  3.86 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 10/23/2014 12:00 PM CDT

Current temperature  55 F 
Yesterday's minimum temperature  42 F 
Yesterday's maximum temperature  61 F 
Current relative humidity  59 % 
Yesterday's minimum relative humidity  49 % 
Yesterday's maximum relative humidity  93 % 
Current wind speed  1 mph  
Current wind direction  NNE 
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 10/23/2014 11:00 AM CDT

Approximate Visual Range
Current Yesterday's
Maximum
Yesterday's
Minimum
  71 miles 143 miles 38 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 10/23/2014 01:00 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 3.9 micrograms per cubic meter
Particulate Matter - PM2.5
updated 10/23/2014 01:00 PM CDT
  • See more air data »
  • Current Weather »
    at Houchin Meadow
    updated 10/23/2014 12:00 PM CDT
    Temperature
    55 F

    Humidity
    59 %

    Wind
    NNE-1 mph

    Precipitation - 1 hr
    0 in.

  • See more weather data »
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    Last Updated: October 23, 2014