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Explore Air
Current Ozone and Weather Data in National Parks
Theodore Roosevelt National Park - Visitor Center, ND
EPA AQS Site Number: 38-007-0002
| Ozone Wednesday May 23, 2012 |
Hour Ending
(Local Time) |
1-Hour Average
(parts per billion) |
8-Hour Average
(parts per billion) |
| 12 AM |
37 |
35 |
| 1 AM |
40 |
34 |
| 2 AM |
37 |
34 |
| 3 AM |
35 |
35 |
| 4 AM |
34 |
36 |
| 5 AM |
34 |
37 |
| 6 AM |
31 |
39 |
| 7 AM |
33 |
40 |
| 8 AM |
35 |
42 |
| 9 AM |
37 |
43 |
| 10 AM |
41 |
44 |
| 11 AM |
43 |
45 |
| 12 PM |
45 |
45 |
| 1 PM |
47 |
45 |
| 2 PM |
46 |
45 |
| 3 PM |
45 |
44 |
| 4 PM |
-- |
43 |
| 5 PM |
45 |
42 |
| 6 PM |
45 |
41 |
| 7 PM |
45 |
40 |
| 8 PM |
46 |
39 |
| 9 PM |
44 |
38 |
| 10 PM |
41 |
37 |
| 11 PM |
38 |
-- |
| Weather and Ozone Data Wednesday May 23, 2012 |
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 |
37 |
6.5 |
W |
13.0 |
78 |
1 |
0.0 |
| 1 AM |
40 |
4.9 |
W |
12.0 |
73 |
1 |
0.0 |
| 2 AM |
37 |
5.3 |
SW |
10.7 |
78 |
1 |
0.0 |
| 3 AM |
35 |
7.0 |
SW |
10.0 |
79 |
1 |
0.0 |
| 4 AM |
34 |
7.0 |
SW |
9.6 |
77 |
1 |
0.0 |
| 5 AM |
34 |
7.5 |
SW |
9.5 |
72 |
1 |
0.0 |
| 6 AM |
31 |
7.6 |
W |
9.0 |
72 |
31 |
0.0 |
| 7 AM |
33 |
6.7 |
W |
9.5 |
61 |
165 |
0.0 |
| 8 AM |
35 |
6.5 |
W |
10.8 |
52 |
344 |
0.0 |
| 9 AM |
37 |
5.9 |
W |
11.9 |
48 |
462 |
0.0 |
| 10 AM |
41 |
7.1 |
W |
13.3 |
41 |
663 |
0.0 |
| 11 AM |
43 |
7.6 |
W |
14.2 |
39 |
802 |
0.0 |
| 12 PM |
45 |
7.6 |
W |
15.4 |
34 |
892 |
0.0 |
| 1 PM |
47 |
8.2 |
W |
16.0 |
31 |
863 |
0.0 |
| 2 PM |
46 |
7.0 |
W |
16.5 |
30 |
672 |
0.0 |
| 3 PM |
45 |
6.6 |
W |
16.4 |
30 |
466 |
0.0 |
| 4 PM |
-- |
6.6 |
W |
17.2 |
30 |
555 |
0.0 |
| 5 PM |
45 |
6.4 |
W |
17.2 |
30 |
562 |
0.0 |
| 6 PM |
45 |
6.1 |
W |
17.1 |
29 |
348 |
0.0 |
| 7 PM |
45 |
5.3 |
W |
16.7 |
32 |
263 |
0.0 |
| 8 PM |
46 |
4.7 |
W |
16.2 |
32 |
107 |
0.0 |
| 9 PM |
44 |
3.8 |
W |
14.9 |
35 |
7 |
0.0 |
| 10 PM |
41 |
3.6 |
NW |
13.5 |
41 |
1 |
0.0 |
| 11 PM |
38 |
2.6 |
NW |
11.9 |
53 |
1 |
0.0 |
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