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 Saturday January 21, 2017 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 35 35
1 AM 35 35
2 AM 35 35
3 AM 36 35
4 AM 36 36
5 AM 36 36
6 AM 35 37
7 AM 35 37
8 AM 36 38
9 AM 36 38
10 AM 36 39
11 AM 38 39
12 PM 40 39
1 PM 40 --
2 PM 41 --
3 PM 40 --
4 PM 39 --
5 PM 39 --
Weather and Ozone Data Saturday January 21, 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 35 3.9 W 0.7 76 -- 0.0
1 AM 35 3.7 W 0.8 76 -- 0.0
2 AM 35 3.0 NW 0.9 75 -- 0.0
3 AM 36 3.6 NW 1.0 73 -- 0.0
4 AM 36 4.4 W 0.8 74 -- 0.0
5 AM 36 4.5 W 0.9 74 -- 0.0
6 AM 35 3.9 NW 0.5 75 -- 0.0
7 AM 35 3.6 W 0.1 75 -- 0.0
8 AM 36 3.8 NW -0.2 74 10 0.0
9 AM 36 2.9 NW -0.2 72 89 0.0
10 AM 36 3.7 W 0.1 69 140 0.0
11 AM 38 4.2 W 0.8 63 303 0.0
12 PM 40 4.3 W 1.5 59 413 0.0
1 PM 40 4.5 W 1.8 58 427 0.0
2 PM 41 4.6 W 1.4 61 373 0.0
3 PM 40 5.0 W 0.9 64 284 0.0
4 PM 39 5.0 W 0.5 67 163 0.0
5 PM 39 3.7 W -0.5 72 27 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 01/21/2017 5:41 PM  I   http://nature.nps.gov/air/data/current/data_THRO-VC.cfm   I  Email: Webmaster