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Current Ozone and Weather Data in National Parks


Mammoth Cave NP - Houchin Meadows, KY
EPA AQS Site Number: 21-061-0501


Today's Data   Data Timelines   Ozone Health Advisory  
Ozone Thursday July 20, 2017 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 26 18
1 AM 26 16
2 AM 23 17
3 AM 17 20
4 AM -- 26
5 AM 18 30
6 AM 12 34
7 AM 5 39
8 AM 14 45
9 AM 32 50
10 AM 48 53
11 AM 57 55
12 PM 56 54
1 PM 55 52
2 PM 52 50
3 PM 50 48
4 PM 54 46
5 PM 56 43
6 PM 61 39
7 PM 54 35
8 PM 41 31
9 PM 37 29
10 PM 35 26
11 PM 30 23
Weather and Ozone Data Thursday July 20, 2017
Hour
Ending
(Local Time)
Ozone
(parts per
billion)
Wind
Speed
(meters per
second)
Wind
Direction
Temperature
(degrees C)
Relative
Humidity
(%)
Solar
Radiation
(watts per
meter
squared)
Rainfall
(millimeters)
12 AM 26 0.4 S 23.8 95 -- 0.0
1 AM 26 0.4 NE 23.2 96 -- 0.0
2 AM 23 0.4 NE 22.8 96 -- 0.0
3 AM 17 0.5 NE 22.4 96 -- 0.0
4 AM -- 0.5 NE 22.0 96 -- 0.0
5 AM 18 0.6 SE 21.6 96 -- 0.0
6 AM 12 0.7 S 21.5 96 1 0.0
7 AM 5 0.7 S 22.0 96 25 0.0
8 AM 14 0.5 S 23.7 94 160 0.0
9 AM 32 1.3 W 27.2 84 330 0.0
10 AM 48 1.4 W 29.1 76 565 0.0
11 AM 57 2.1 W 29.8 71 623 0.0
12 PM 56 1.9 NW 30.5 67 814 0.0
1 PM 55 1.4 W 31.3 66 721 0.0
2 PM 52 1.7 NW 31.3 64 671 0.0
3 PM 50 1.1 W 31.7 61 514 0.0
4 PM 54 1.2 SW 32.3 62 622 0.0
5 PM 56 1.3 W 32.3 63 437 0.0
6 PM 61 1.3 W 32.2 63 345 0.0
7 PM 54 1.2 W 31.7 63 182 0.0
8 PM 41 0.7 W 29.4 71 27 0.0
9 PM 37 0.5 SE 26.7 84 -- 0.0
10 PM 35 0.6 E 25.5 92 -- 0.0
11 PM 30 0.5 SE 25.1 94 -- 0.0
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updated on 07/21/2017 8:40 AM  I   http://www.nature.nps.gov/air/data/current/data_MACA-HM2.cfm   I  Email: Webmaster