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 Sunday August 2, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 45 39
1 AM 45 38
2 AM 46 38
3 AM 42 37
4 AM 36 37
5 AM 34 38
6 AM 36 40
7 AM 35 41
8 AM 36 42
9 AM 39 42
10 AM 42 43
11 AM 43 43
12 PM 44 43
1 PM 45 44
2 PM 46 44
3 PM 41 44
4 PM 42 44
5 PM 45 44
6 PM 44 44
7 PM 43 44
8 PM 47 44
9 PM 51 43
10 PM 46 42
11 PM 41 42
Weather and Ozone Data Sunday August 2, 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 45 1.1 N 19.9 60 0 0.0
1 AM 45 0.8 E 20.0 60 0 0.0
2 AM 46 1.6 SE 19.5 60 0 0.0
3 AM 42 2.0 S 18.5 63 0 0.0
4 AM 36 2.4 S 17.6 69 0 0.0
5 AM 34 2.8 S 16.7 73 0 0.0
6 AM 36 2.9 S 16.6 75 1 0.0
7 AM 35 2.3 S 16.7 75 32 0.0
8 AM 36 1.4 W 17.8 71 252 0.0
9 AM 39 1.5 NE 19.3 65 517 0.0
10 AM 42 2.1 NE 20.0 62 581 0.0
11 AM 43 1.8 NE 20.3 61 355 0.1
12 PM 44 1.9 NE 21.1 58 563 0.0
1 PM 45 2.2 N 22.1 54 699 0.0
2 PM 46 2.0 NW 21.6 57 183 0.0
3 PM 41 2.1 SE 19.9 68 171 0.0
4 PM 42 1.0 NE 20.2 66 257 0.0
5 PM 45 1.2 NE 21.2 59 324 0.0
6 PM 44 1.7 S 18.9 77 221 7.5
7 PM 43 0.7 S 20.9 66 143 0.0
8 PM 47 0.8 NW 21.1 58 7 0.0
9 PM 51 1.7 NW 21.1 54 0 0.0
10 PM 46 1.5 SE 20.0 59 -- 0.0
11 PM 41 2.9 SE 17.8 73 -- 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 08/03/2015 12:44 PM  I   http://www2.nature.nps.gov/air/data/current/data_GRCA-AS2.cfm   I  Email: Webmaster