National Park Service Arrowhead
Explore Air

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 Wednesday December 17, 2014 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 36 39
1 AM 40 40
2 AM 38 40
3 AM 38 40
4 AM 38 41
5 AM 42 40
6 AM 42 39
7 AM 41 38
8 AM 43 38
9 AM 42 37
10 AM 41 37
11 AM 39 37
12 PM 36 37
1 PM 34 36
2 PM 34 36
3 PM 36 36
4 PM 39 36
5 PM 40 36
6 PM 40 35
7 PM 37 34
8 PM 31 33
9 PM 34 34
10 PM 38 34
11 PM 35 33
Weather and Ozone Data Wednesday December 17, 2014
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 36 2.2 S 1.4 76 0 0.0
1 AM 40 2.6 S 0.5 86 0 0.0
2 AM 38 0.8 S 0.1 91 0 0.0
3 AM 38 0.9 S 0.1 92 0 0.0
4 AM 38 2.4 SW -0.4 94 0 0.2
5 AM 42 3.0 SW -1.1 95 0 0.3
6 AM 42 2.2 S -1.3 95 0 0.2
7 AM 41 1.9 SW -1.4 95 0 0.4
8 AM 43 3.0 SW -2.0 95 2 0.3
9 AM 42 1.8 SW -1.9 93 22 0.0
10 AM 41 2.0 SW -1.1 92 78 0.1
11 AM 39 3.2 SW -0.7 94 92 0.0
12 PM 36 3.3 SW -0.7 95 92 0.1
1 PM 34 2.7 SW -0.6 95 79 0.1
2 PM 34 2.2 SW -0.3 95 91 0.4
3 PM 36 1.9 NW -0.3 95 85 0.9
4 PM 39 1.5 NW 0.1 92 133 0.1
5 PM 40 1.6 N 0.0 90 52 0.0
6 PM 40 1.5 N -0.4 92 1 0.0
7 PM 37 1.3 W -0.4 92 0 0.0
8 PM 31 1.7 SW -0.5 95 0 0.0
9 PM 34 1.7 SW -0.6 95 0 0.3
10 PM 38 2.2 SW -0.9 95 0 0.0
11 PM 35 2.1 SW -0.9 95 0 0.0
U.S. Department of the Interior Accessibility Freedom of Information Act USA.gov Search
Privacy Policy Disclaimer NPS Home Contact Us
updated on 12/18/2014 1:39 PM  I   http://www.nature.nps.gov/air/data/current/data_GRCA-AS2.cfm   I  Email: Webmaster