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 Thursday July 30, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 38 37
1 AM 35 38
2 AM 35 38
3 AM 37 39
4 AM 37 39
5 AM 39 39
6 AM 39 40
7 AM 41 40
8 AM 41 40
9 AM 40 41
10 AM 39 42
11 AM 40 44
12 PM 40 45
1 PM 41 46
2 PM 42 47
3 PM 44 49
4 PM 47 49
5 PM 50 50
6 PM 50 49
7 PM 48 49
8 PM 51 50
9 PM 51 50
10 PM 51 49
11 PM 50 49
Weather and Ozone Data Thursday July 30, 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 38 3.9 S 20.6 52 0 0.0
1 AM 35 3.6 S 19.6 60 0 0.0
2 AM 35 4.0 S 18.9 63 0 0.0
3 AM 37 3.5 S 18.4 64 0 0.0
4 AM 37 2.7 S 18.3 64 0 0.0
5 AM 39 2.6 S 17.7 65 0 0.0
6 AM 39 2.6 SE 17.7 65 4 0.0
7 AM 41 1.9 SE 18.9 59 115 0.0
8 AM 41 1.0 E 20.7 54 280 0.0
9 AM 40 1.5 NE 21.4 52 524 0.0
10 AM 39 1.8 NE 22.0 51 536 0.0
11 AM 40 1.2 NE 22.2 51 248 0.0
12 PM 40 1.4 NE 23.0 49 429 0.0
1 PM 41 1.5 N 23.0 49 394 0.0
2 PM 42 1.2 NE 23.2 48 354 0.0
3 PM 44 1.6 NE 23.5 45 295 0.0
4 PM 47 1.4 E 24.0 39 207 0.0
5 PM 50 2.2 E 24.3 36 221 0.0
6 PM 50 1.9 E 24.2 37 89 0.0
7 PM 48 3.1 SE 22.3 48 22 0.0
8 PM 51 3.8 E 22.5 43 1 0.0
9 PM 51 3.6 E 22.8 41 0 0.0
10 PM 51 2.4 E 22.4 40 0 0.0
11 PM 50 2.3 SE 22.0 41 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 07/31/2015 8:46 PM  I   http://www.nature.nps.gov/air/data/current/data_GRCA-AS2.cfm   I  Email: Webmaster