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Current Ozone and Weather Data in National Parks


Grand Canyon National Park - The Abyss, AZ
EPA AQS Site Number: 04-005-8001


Today's Data   Data Timelines   Ozone Health Advisory  
Ozone Thursday May 21, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 58 58
1 AM 61 57
2 AM 61 56
3 AM 59 55
4 AM 59 54
5 AM 58 54
6 AM 57 54
7 AM 54 54
8 AM 53 55
9 AM 52 56
10 AM 53 57
11 AM 53 58
12 PM 56 58
1 PM 58 58
2 PM 60 58
3 PM 61 57
4 PM 60 56
5 PM 58 55
6 PM 58 54
7 PM 57 53
8 PM 57 52
9 PM 57 51
10 PM 53 50
11 PM 50 49
Weather and Ozone Data Thursday May 21, 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 58 4.1 S 10.1 36 0 0.0
1 AM 61 2.7 SW 10.2 36 0 0.0
2 AM 61 2.7 S 10.3 36 0 0.0
3 AM 59 2.6 S 9.6 38 0 0.0
4 AM 59 2.6 S 9.3 39 0 0.0
5 AM 58 2.5 SE 9.1 40 0 0.0
6 AM 57 2.1 SE 9.3 41 7 0.0
7 AM 54 2.2 SE 9.5 41 44 0.0
8 AM 53 2.6 S 10.6 40 103 0.0
9 AM 52 3.0 S 11.6 39 161 0.0
10 AM 53 3.5 S 12.3 34 248 0.0
11 AM 53 3.4 S 13.0 33 308 0.0
12 PM 56 3.1 S 14.0 30 344 0.0
1 PM 58 2.9 S 14.9 26 489 0.0
2 PM 60 3.7 S 15.8 22 561 0.0
3 PM 61 3.7 S 16.1 21 436 0.0
4 PM 60 4.1 S 14.3 27 171 0.0
5 PM 58 4.0 S 12.8 35 90 0.0
6 PM 58 2.9 SW 12.6 36 77 0.0
7 PM 57 2.1 W 12.0 37 40 0.0
8 PM 57 1.0 N 11.4 38 7 0.0
9 PM 57 2.2 SW 10.4 39 0 0.0
10 PM 53 3.1 S 8.6 44 0 0.0
11 PM 50 3.4 S 7.9 43 0 0.0
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updated on 05/22/2015 3:42 PM  I   http://www.nature.nps.gov/air/data/current/data_GRCA-AS2.cfm   I  Email: Webmaster