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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 Friday July 21, 2017 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 35 42
1 AM 38 43
2 AM 42 44
3 AM 42 --
4 AM 44 --
5 AM 46 --
6 AM 47 --
7 AM 46 --
Weather and Ozone Data Friday July 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 2.8 S 17.2 77 0 0.0
1 AM 38 2.5 S 17.5 74 0 0.0
2 AM 42 2.4 S 17.3 72 0 0.0
3 AM 42 2.6 S 17.2 71 0 0.0
4 AM 44 2.1 S 17.3 69 0 0.0
5 AM 46 2.2 S 17.2 68 0 0.0
6 AM 47 2.1 SE 16.9 68 5 0.0
7 AM 46 2.2 S 17.3 67 83 0.0
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updated on 07/21/2017 8:40 AM  I   http://www.nature.nps.gov/air/data/current/data_GRCA-AS.cfm   I  Email: Webmaster