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Current Ozone and Weather Data in National Parks


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


Yesterday's Data   Data Timelines   Ozone Health Advisory  


Ozone Wednesday August 20, 2014 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 50 44
1 AM 47 44
2 AM 44 45
3 AM 45 46
4 AM 44 46
5 AM 41 46
6 AM 41 46
7 AM 44 46
8 AM 52 45
9 AM 54 44
10 AM 49 43
11 AM 49 42
12 PM 42 --
1 PM 40 --
2 PM 39 --
3 PM 40 --
4 PM 42 --
Weather and Ozone Data Wednesday August 20, 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 50 3.6 SW 21.4 25 0 0.0
1 AM 47 4.3 SW 21.9 19 0 0.0
2 AM 44 4.5 SW 22.0 19 0 0.0
3 AM 45 4.5 SW 21.8 17 0 0.0
4 AM 44 4.1 SW 21.5 18 0 0.0
5 AM 41 3.6 SW 21.3 28 0 0.0
6 AM 41 3.6 SW 21.4 35 0 0.0
7 AM 44 2.9 SW 20.7 38 12 0.0
8 AM 52 2.9 SW 21.6 35 104 0.0
9 AM 54 3.9 SW 21.5 35 121 0.0
10 AM 49 5.5 W 20.4 43 126 --
11 AM 49 4.8 W 20.7 42 407 0.0
12 PM 42 3.7 SW 23.7 35 618 0.0
1 PM 40 2.9 S 24.5 32 534 0.0
2 PM 39 3.5 SW 23.7 37 164 0.0
3 PM 40 3.1 SW 23.4 40 274 0.0
4 PM 42 3.3 SW 25.5 30 726 0.0
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updated on 08/20/2014 5:40 PM  I   http://www.nature.nps.gov/air/data/current/data_JOTR-BR.cfm   I  Email: Webmaster