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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 Friday October 20, 2017 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 42 44
1 AM 43 45
2 AM 44 45
3 AM 44 45
4 AM 46 45
5 AM 47 45
6 AM 47 45
7 AM 46 45
8 AM 47 45
9 AM 44 45
10 AM 42 46
11 AM 45 47
12 PM 47 48
1 PM 47 48
2 PM 46 48
3 PM 47 48
4 PM 48 48
5 PM 49 48
6 PM 50 48
7 PM 51 47
8 PM 51 --
9 PM 48 --
10 PM 46 --
11 PM 46 --
Weather and Ozone Data Friday October 20, 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 42 4.4 S 10.2 44 0 0.0
1 AM 43 4.0 S 10.1 46 0 0.0
2 AM 44 4.1 S 9.8 49 0 0.0
3 AM 44 4.1 S 9.2 53 0 0.0
4 AM 46 4.5 S 8.3 56 0 0.0
5 AM 47 5.3 S 8.0 54 0 0.0
6 AM 47 4.9 S 7.8 53 0 0.0
7 AM 46 5.7 S 7.8 51 4 0.0
8 AM 47 6.0 S 8.6 48 94 0.0
9 AM 44 6.6 S 11.5 42 345 0.0
10 AM 42 6.7 SW 13.7 35 522 0.0
11 AM 45 7.0 SW 15.0 29 652 0.0
12 PM 47 6.6 SW 16.0 27 707 0.0
1 PM 47 8.0 SW 17.1 24 735 0.0
2 PM 46 8.3 SW 17.8 21 660 0.0
3 PM 47 7.6 SW 17.9 21 518 0.0
4 PM 48 7.9 SW 17.2 20 394 0.0
5 PM 49 7.6 SW 15.5 27 196 0.0
6 PM 50 6.4 SW 13.5 36 13 0.0
7 PM 51 4.6 SW 11.8 42 0 0.0
8 PM 51 6.1 SW 10.8 47 0 0.0
9 PM 48 6.7 SW 9.7 50 0 0.0
10 PM 46 6.2 SW 8.9 52 0 0.0
11 PM 46 5.4 SW 8.9 52 0 0.0
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updated on 10/21/2017 1:42 AM  I   http://nature.nps.gov/air/data/current/data_GRCA-AS2.cfm   I  Email: Webmaster