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


Yesterday's Data   Data Timelines   Ozone Health Advisory  


Ozone Tuesday October 21, 2014 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 29 24
1 AM 27 23
2 AM 24 22
3 AM 27 22
4 AM 25 22
5 AM 23 22
6 AM 23 23
7 AM 19 25
8 AM 21 28
9 AM 21 31
10 AM 22 34
11 AM 23 36
12 PM 29 39
1 PM 31 40
2 PM 38 40
3 PM 43 41
4 PM 47 40
5 PM 45 --
6 PM 38 --
7 PM 41 --
8 PM 42 --
9 PM 31 --
Weather and Ozone Data Tuesday October 21, 2014
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 29 6.8 S 11.4 62 1 0.0
1 AM 27 6.5 S 10.3 66 1 0.0
2 AM 24 7.6 S 9.8 67 1 0.0
3 AM 27 8.2 SE 8.9 70 1 0.0
4 AM 25 6.5 S 7.5 75 1 0.0
5 AM 23 6.9 S 6.8 77 1 0.0
6 AM 23 7.9 SE 6.5 78 1 0.0
7 AM 19 6.9 S 5.5 82 1 0.0
8 AM 21 6.3 S 5.8 81 21 0.0
9 AM 21 5.7 S 6.7 77 150 0.0
10 AM 22 5.0 SE 9.8 67 286 0.0
11 AM 23 5.6 SE 13.1 59 396 0.0
12 PM 29 4.8 SE 17.3 48 472 0.0
1 PM 31 5.7 SE 19.9 42 503 0.0
2 PM 38 6.1 S 23.1 34 486 0.0
3 PM 43 6.2 S 25.7 27 419 0.0
4 PM 47 6.4 S 26.2 24 314 0.0
5 PM 45 5.2 S 25.7 27 180 0.0
6 PM 38 3.1 S 24.1 31 42 0.0
7 PM 41 3.1 S 22.7 33 1 0.0
8 PM 42 3.1 S 21.2 36 1 0.0
9 PM 31 3.5 S 20.3 36 1 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 10/21/2014 9:40 PM  I   http://nature.nps.gov/air/data/current/data_THRO-VC.cfm   I  Email: Webmaster