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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 Saturday October 25, 2014 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 48 43
1 AM 46 42
2 AM 44 41
3 AM 43 41
4 AM 42 40
5 AM 43 40
6 AM 43 39
7 AM 41 39
8 AM 40 39
9 AM 39 39
10 AM 38 40
11 AM 37 42
12 PM 39 44
1 PM 40 45
2 PM 40 46
3 PM 41 46
4 PM 43 46
5 PM 47 46
6 PM 53 46
7 PM 50 45
8 PM 49 --
9 PM 48 --
10 PM 44 --
11 PM 41 --
Weather and Ozone Data Saturday October 25, 2014
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 48 3.2 SW 18.6 39 0 0.0
1 AM 46 3.0 SW 18.7 41 0 0.0
2 AM 44 3.8 SW 19.3 42 0 0.0
3 AM 43 3.5 SW 19.2 44 0 0.0
4 AM 42 3.5 SW 19.2 44 0 0.0
5 AM 43 3.4 SW 19.1 45 0 0.0
6 AM 43 2.9 SW 19.1 43 0 0.0
7 AM 41 2.5 SW 19.0 44 1 0.0
8 AM 40 2.4 SW 19.4 44 57 0.0
9 AM 39 3.6 SW 20.8 40 271 0.0
10 AM 38 3.8 SW 21.9 37 447 0.0
11 AM 37 4.1 SW 22.4 36 549 0.0
12 PM 39 4.2 SW 23.1 34 698 0.0
1 PM 40 4.0 SW 23.6 32 730 0.0
2 PM 40 4.3 SW 23.8 32 701 0.0
3 PM 41 4.7 SW 23.9 32 547 0.0
4 PM 43 4.9 SW 23.3 33 449 0.0
5 PM 47 4.4 SW 22.6 34 230 0.0
6 PM 53 3.2 SW 21.5 36 16 0.0
7 PM 50 3.0 SW 20.4 39 1 0.0
8 PM 49 2.7 SW 19.6 43 0 0.0
9 PM 48 2.7 SW 19.2 45 0 0.0
10 PM 44 3.2 SW 19.0 45 0 0.0
11 PM 41 3.3 SW 18.6 45 0 0.0
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updated on 10/26/2014 2:39 AM  I   http://www2.nature.nps.gov/air/data/current/data_JOTR-BR2.cfm   I  Email: Webmaster