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 28, 2016 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 46 50
1 AM 48 49
2 AM 50 49
3 AM 50 49
4 AM 51 49
5 AM 52 49
6 AM 52 48
7 AM 51 48
8 AM 42 49
9 AM 47 50
10 AM 49 50
11 AM 50 51
12 PM 49 51
1 PM 50 51
2 PM 52 51
3 PM 53 51
4 PM 53 50
5 PM 51 49
6 PM 52 49
7 PM 51 49
8 PM 51 49
9 PM 51 49
10 PM 49 49
11 PM 47 49
Weather and Ozone Data Thursday July 28, 2016
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 46 2.8 SE 22.7 35 0 0.0
1 AM 48 1.5 S 24.3 32 0 0.0
2 AM 50 1.6 NW 26.5 23 0 0.0
3 AM 50 2.1 NW 26.5 22 0 0.0
4 AM 51 1.9 NW 26.0 22 0 0.0
5 AM 52 1.8 NW 25.9 23 0 0.0
6 AM 52 2.5 N 25.7 24 5 0.0
7 AM 51 2.2 NW 25.5 26 113 0.0
8 AM 42 2.4 S 23.7 30 312 0.0
9 AM 47 1.7 S 26.7 26 509 0.0
10 AM 49 1.4 NE 28.7 22 688 0.0
11 AM 50 1.6 NE 29.3 21 827 0.0
12 PM 49 1.9 NE 30.3 20 926 0.0
1 PM 50 1.9 N 30.7 18 566 0.0
2 PM 52 3.2 SE 29.6 19 164 0.0
3 PM 53 7.1 SE 27.6 21 145 1.0
4 PM 53 5.4 SE 28.7 21 541 0.0
5 PM 51 3.4 SW 29.3 19 220 0.0
6 PM 52 4.4 W 27.7 22 143 0.0
7 PM 51 1.5 NW 27.3 23 50 0.0
8 PM 51 1.4 NW 26.9 23 8 0.0
9 PM 51 1.8 NW 26.1 24 0 0.0
10 PM 49 2.1 SW 24.8 26 0 0.0
11 PM 47 2.0 SW 23.4 28 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 07/29/2016 10:41 PM  I   http://nature.nps.gov/air/data/current/data_GRCA-AS2.cfm   I  Email: Webmaster