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Current Ozone and Weather Data in National Parks


Theodore Roosevelt National Park - Visitor Center, ND
EPA AQS Site Number: 38-007-0002


Today's Data   Data Timelines   Ozone Health Advisory  
Ozone Sunday May 24, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 35 29
1 AM 31 28
2 AM 30 29
3 AM 31 31
4 AM 29 32
5 AM 28 34
6 AM 25 36
7 AM 26 39
8 AM 30 42
9 AM 40 44
10 AM 41 45
11 AM 40 46
12 PM 44 47
1 PM 46 47
2 PM 47 47
3 PM 49 47
4 PM 47 46
5 PM 47 45
6 PM 49 44
7 PM 49 43
8 PM 44 42
9 PM 45 41
10 PM 46 40
11 PM 43 38
Weather and Ozone Data Sunday May 24, 2015
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 35 3.6 E 11.0 80 0 0.0
1 AM 31 4.1 SE 10.0 85 0 0.0
2 AM 30 1.7 E 9.5 90 0 0.0
3 AM 31 1.4 E 9.5 91 0 0.0
4 AM 29 1.9 E 8.9 93 0 0.0
5 AM 28 1.6 NE 9.0 95 0 0.0
6 AM 25 1.8 NE 9.2 95 5 0.0
7 AM 26 1.6 N 9.8 93 58 0.0
8 AM 30 2.0 NE 11.0 88 145 0.0
9 AM 40 3.6 NE 12.5 79 214 0.0
10 AM 41 3.5 NE 13.3 75 273 0.0
11 AM 40 3.7 NE 14.5 73 447 0.0
12 PM 44 4.0 E 16.1 68 429 0.0
1 PM 46 4.2 E 16.7 64 372 0.0
2 PM 47 4.2 E 17.3 62 318 0.0
3 PM 49 4.6 E 18.3 59 453 0.0
4 PM 47 4.7 E 16.0 69 123 0.0
5 PM 47 2.9 E 15.5 70 101 0.0
6 PM 49 2.9 NE 16.5 64 142 0.0
7 PM 49 3.9 E 16.6 63 88 0.0
8 PM 44 3.4 E 16.0 66 42 0.0
9 PM 45 3.0 E 15.3 66 5 0.0
10 PM 46 2.4 NE 14.7 67 0 0.0
11 PM 43 1.8 NE 14.0 70 0 0.0
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updated on 05/25/2015 6:55 PM  I   http://www.nature.nps.gov/air/data/current/data_THRO-VC2.cfm   I  Email: Webmaster