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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


Yesterday's Data   Data Timelines   Ozone Health Advisory  


Ozone Wednesday July 26, 2017 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 50 50
1 AM 49 50
2 AM 51 50
3 AM 49 49
4 AM 52 49
5 AM 51 49
6 AM 51 48
7 AM 49 47
8 AM 50 47
9 AM 50 46
10 AM 47 46
11 AM 48 46
12 PM 46 46
1 PM 45 46
2 PM 45 --
3 PM 46 --
4 PM 47 --
5 PM 48 --
6 PM 49 --
Weather and Ozone Data Wednesday July 26, 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 50 0.9 W 16.5 75 0 0.0
1 AM 49 1.6 W 16.0 76 0 0.1
2 AM 51 2.1 SW 15.6 75 0 0.0
3 AM 49 1.7 S 15.1 79 0 0.0
4 AM 52 1.3 NW 16.1 72 0 0.0
5 AM 51 0.8 W 16.2 70 0 0.0
6 AM 51 1.3 S 15.5 74 7 0.0
7 AM 49 0.9 SE 16.3 73 135 0.0
8 AM 50 0.9 NW 18.6 62 330 0.0
9 AM 50 1.7 NW 19.6 58 508 0.0
10 AM 47 1.7 W 20.3 59 681 0.0
11 AM 48 1.6 NE 20.4 57 815 0.0
12 PM 46 2.1 NE 21.1 57 891 0.0
1 PM 45 2.1 NE 22.2 55 830 0.0
2 PM 45 1.7 NE 22.9 53 732 0.0
3 PM 46 1.6 N 24.0 49 848 0.0
4 PM 47 2.0 N 24.4 46 701 0.0
5 PM 48 1.9 N 24.9 44 542 0.0
6 PM 49 1.8 NW 24.8 43 342 0.0
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updated on 07/26/2017 7:44 PM  I   http://nature.nps.gov/air/data/current/data_GRCA-AS.cfm   I  Email: Webmaster