Mammoth Cave National Park
View of Green River Valley Looking North-Northwest •
updated 05/06/2009 1:30 PM CDT • Visual range is approximately 49 miles
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Current Conditions
as of 05/06/2009 • 1:00 PM CDT
Current 1-hour average concentration |
29 ppb |
Current 8-hour average concentration |
22 ppb |
Good |
Moderate |
Unhealthy for Sensitive Groups |
Unhealthy |
Very Unhealthy |
![](https://webarchive.library.unt.edu/web/20090506184319im_/http://www.nature.nps.gov/air/global/images/transparent.gif) |
![](https://webarchive.library.unt.edu/web/20090506184319im_/http://www.nature.nps.gov/air/global/images/transparent.gif) |
![](https://webarchive.library.unt.edu/web/20090506184319im_/http://www.nature.nps.gov/air/global/images/transparent.gif) |
![](https://webarchive.library.unt.edu/web/20090506184319im_/http://www.nature.nps.gov/air/global/images/transparent.gif) |
![](https://webarchive.library.unt.edu/web/20090506184319im_/http://www.nature.nps.gov/air/global/images/transparent.gif) |
0 |
60 |
76 |
96 |
116 ppb |
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|
Current 1-hour average PM2.5 concentration |
3.6 ug/m3 |
Current 24-hour average PM2.5 concentration |
11.5 ug/m3 |
Good |
Moderate |
Unhealthy for Sensitive Groups |
Unhealthy |
Very Unhealthy |
![](https://webarchive.library.unt.edu/web/20090506184319im_/http://www.nature.nps.gov/air/global/images/transparent.gif) |
![](https://webarchive.library.unt.edu/web/20090506184319im_/http://www.nature.nps.gov/air/global/images/transparent.gif) |
![](https://webarchive.library.unt.edu/web/20090506184319im_/http://www.nature.nps.gov/air/global/images/transparent.gif) |
![](https://webarchive.library.unt.edu/web/20090506184319im_/http://www.nature.nps.gov/air/global/images/transparent.gif) |
![](https://webarchive.library.unt.edu/web/20090506184319im_/http://www.nature.nps.gov/air/global/images/transparent.gif) |
0 |
15 |
40 |
65 |
150 ug/m3 |
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Current temperature |
64 F |
Current relative humidity |
93 % |
Current wind |
W - 7 mph |
Precipitation in last hour |
0.00 inches |
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