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 May 27, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 46 54
1 AM 49 55
2 AM 55 55
3 AM 56 55
4 AM 57 55
5 AM 57 54
6 AM 58 54
7 AM 56 54
8 AM 54 55
9 AM 52 55
10 AM 52 56
11 AM 54 57
12 PM 54 57
1 PM 56 57
2 PM 59 57
3 PM 59 56
4 PM 59 55
5 PM 60 54
6 PM 59 53
7 PM 57 52
8 PM 54 51
9 PM 53 51
10 PM 51 51
11 PM 51 51
Weather and Ozone Data Wednesday May 27, 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 46 3.8 SW 11.8 42 0 0.0
1 AM 49 1.6 SW 11.9 40 0 0.0
2 AM 55 2.2 SW 13.1 32 0 0.0
3 AM 56 1.9 SW 12.6 33 0 0.0
4 AM 57 1.2 SW 12.9 32 0 0.0
5 AM 57 1.0 W 13.7 30 0 0.0
6 AM 58 1.2 S 13.5 30 13 0.0
7 AM 56 1.2 S 14.0 31 176 0.0
8 AM 54 1.0 SE 15.3 31 349 0.0
9 AM 52 1.7 NE 15.4 31 554 0.0
10 AM 52 1.8 NE 15.5 31 568 0.0
11 AM 54 1.6 N 16.4 29 571 0.0
12 PM 54 1.7 NE 16.8 27 648 0.0
1 PM 56 1.7 NE 17.5 24 794 0.0
2 PM 59 2.8 W 19.9 18 972 0.0
3 PM 59 3.2 W 20.5 18 864 0.0
4 PM 59 3.5 SW 21.2 18 687 0.0
5 PM 60 3.3 SW 21.5 17 559 0.0
6 PM 59 3.8 SW 20.8 18 270 0.0
7 PM 57 3.1 SW 19.8 23 111 0.0
8 PM 54 3.4 SW 18.1 27 19 0.0
9 PM 53 4.3 SW 16.9 29 0 0.0
10 PM 51 4.0 S 15.3 32 0 0.0
11 PM 51 4.2 S 13.8 34 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 05/28/2015 11:46 AM  I   http://www2.nature.nps.gov/air/data/current/data_GRCA-AS2.cfm   I  Email: Webmaster