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Current Ozone and Weather Data in National Parks


Joshua Tree National Park - Black Rock, CA
Portable Ozone Monitor


Today's Data   Data Timelines   Ozone Health Advisory  
Ozone Thursday May 21, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 50 49
1 AM 50 49
2 AM 48 49
3 AM 49 50
4 AM 51 51
5 AM 51 51
6 AM 49 52
7 AM 47 52
8 AM 50 54
9 AM 53 54
10 AM 53 54
11 AM 55 54
12 PM 54 54
1 PM 55 54
2 PM 56 53
3 PM 56 52
4 PM 55 51
5 PM 54 49
6 PM 54 48
7 PM 54 47
8 PM 51 46
9 PM 48 45
10 PM 47 45
11 PM 46 45
Weather and Ozone Data Thursday May 21, 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 50 2.9 SW 13.8 35 0 0.0
1 AM 50 3.1 SW 13.5 32 0 0.0
2 AM 48 2.4 SW 12.9 32 0 0.0
3 AM 49 2.5 SW 12.7 27 0 0.0
4 AM 51 2.9 SW 12.5 22 0 0.0
5 AM 51 1.2 S 10.8 22 0 0.0
6 AM 49 2.8 S 9.6 27 4 0.0
7 AM 47 2.1 S 10.6 31 83 0.0
8 AM 50 1.7 NE 14.4 31 296 0.0
9 AM 53 2.0 NE 15.7 28 533 0.0
10 AM 53 3.0 NE 17.5 25 729 0.0
11 AM 55 2.8 NE 18.4 24 886 0.0
12 PM 54 3.7 SW 18.4 25 862 0.0
1 PM 55 5.2 SW 19.2 26 1023 0.0
2 PM 56 5.3 SW 19.0 24 987 0.0
3 PM 56 5.6 S 18.8 24 916 0.0
4 PM 55 5.7 SW 18.5 27 779 0.0
5 PM 54 6.1 SW 17.6 31 597 0.0
6 PM 54 6.2 SW 16.4 36 388 0.0
7 PM 54 5.5 SW 14.7 41 178 0.0
8 PM 51 5.9 SW 12.3 52 16 0.0
9 PM 48 5.6 SW 10.7 63 0 0.0
10 PM 47 5.3 SW 10.4 65 0 0.0
11 PM 46 5.3 SW 9.9 67 0 0.0
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updated on 05/22/2015 3:42 PM  I   http://nature.nps.gov/air/data/current/data_JOTR-BR2.cfm   I  Email: Webmaster