National Park Service Arrowhead
Explore Air

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 Thursday September 29, 2016 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 25 23
1 AM 26 22
2 AM 26 21
3 AM 24 21
4 AM 24 21
5 AM 22 22
6 AM 19 23
7 AM 18 25
8 AM 20 26
9 AM 22 28
10 AM 23 29
11 AM 26 30
12 PM 29 31
1 PM 31 31
2 PM 31 30
3 PM 33 30
4 PM 32 29
5 PM 33 28
6 PM 32 27
7 PM 28 25
8 PM 28 24
9 PM 28 23
10 PM 27 23
11 PM 26 22
Weather and Ozone Data Thursday September 29, 2016
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 25 7.6 SE 11.4 55 0 0.0
1 AM 26 8.5 SE 10.7 58 0 0.0
2 AM 26 8.4 S 10.6 63 0 0.0
3 AM 24 7.6 S 9.8 72 0 0.0
4 AM 24 8.9 S 9.8 75 0 0.0
5 AM 22 9.0 S 9.1 77 0 0.0
6 AM 19 7.4 S 8.2 81 0 0.0
7 AM 18 8.0 SE 7.9 84 2 0.0
8 AM 20 8.3 SE 9.5 78 74 0.0
9 AM 22 8.6 SE 12.0 68 239 0.0
10 AM 23 9.6 SE 14.5 59 394 0.0
11 AM 26 8.4 SE 17.2 51 515 0.0
12 PM 29 8.5 SE 19.5 45 600 0.0
1 PM 31 8.9 SE 21.8 41 635 0.0
2 PM 31 9.6 SE 23.0 40 621 0.0
3 PM 33 10.2 SE 23.9 38 561 0.0
4 PM 32 10.0 SE 24.2 38 455 0.0
5 PM 33 10.2 SE 24.0 37 312 0.0
6 PM 32 9.4 SE 22.6 39 141 0.0
7 PM 28 8.7 SE 19.3 47 9 0.0
8 PM 28 9.4 SE 17.3 52 0 0.0
9 PM 28 11.0 SE 16.2 53 0 0.0
10 PM 27 11.2 SE 15.4 53 0 0.0
11 PM 26 10.2 SE 15.0 54 0 0.0
U.S. Department of the Interior Accessibility Freedom of Information Act USA.gov Search
Privacy Policy Disclaimer NPS Home Contact Us
updated on 09/30/2016 8:42 PM  I   http://www.nature.nps.gov/air/data/current/data_THRO-VC2.cfm   I  Email: Webmaster