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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 Monday May 25, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 48 43
1 AM 48 43
2 AM 48 43
3 AM 45 44
4 AM 43 44
5 AM 42 45
6 AM 40 46
7 AM 36 47
8 AM 45 49
9 AM 50 50
10 AM 52 50
11 AM 50 50
12 PM 48 50
1 PM 49 51
2 PM 50 52
3 PM 51 52
4 PM 51 53
5 PM 52 53
6 PM 53 53
7 PM 53 52
8 PM 53 51
9 PM 54 50
10 PM 55 49
11 PM 53 47
Weather and Ozone Data Monday May 25, 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 48 2.5 SW 8.2 82 0 0.0
1 AM 48 1.8 SW 8.0 82 0 0.0
2 AM 48 1.8 SW 7.6 81 0 0.0
3 AM 45 2.0 SW 7.4 84 0 0.0
4 AM 43 2.4 W 7.6 89 0 0.0
5 AM 42 2.1 W 7.1 93 0 0.5
6 AM 40 1.0 W 6.5 95 4 0.6
7 AM 36 0.8 SW 6.6 95 18 0.7
8 AM 45 0.7 W 6.8 95 39 0.2
9 AM 50 0.6 NW 7.6 90 107 0.0
10 AM 52 2.1 W 9.0 81 528 0.0
11 AM 50 2.5 W 10.1 79 620 0.0
12 PM 48 1.4 NE 10.4 80 572 0.0
1 PM 49 2.2 NE 11.6 73 939 0.0
2 PM 50 2.1 NE 12.8 68 923 0.0
3 PM 51 2.2 N 13.7 62 817 0.0
4 PM 51 2.5 N 14.8 56 704 0.0
5 PM 52 2.2 N 15.2 53 521 0.0
6 PM 53 1.9 N 15.4 51 309 0.0
7 PM 53 2.2 N 15.3 50 136 0.0
8 PM 53 1.8 NW 14.5 51 11 0.0
9 PM 54 1.5 NW 14.3 52 0 0.0
10 PM 55 1.4 W 14.1 50 0 0.0
11 PM 53 2.4 SW 12.6 53 0 0.0
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updated on 05/26/2015 8:44 PM  I   http://nature.nps.gov/air/data/current/data_GRCA-AS2.cfm   I  Email: Webmaster