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Current Ozone and Weather Data in National Parks


Yosemite National Park - School Yard, CA
Portable Ozone Monitor


Today's Data   Data Timelines   Ozone Health Advisory  
Ozone Wednesday May 23, 2012 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 38 26
1 AM 24 25
2 AM 23 26
3 AM 23 28
4 AM 26 31
5 AM 26 33
6 AM 27 35
7 AM 28 37
8 AM 23 39
9 AM 37 43
10 AM 41 45
11 AM 41 46
12 PM 41 48
1 PM 42 50
2 PM 46 52
3 PM 47 52
4 PM 49 53
5 PM 53 --
6 PM 54 --
7 PM 56 --
8 PM 58 --
9 PM 53 --
Weather and Ozone Data Wednesday May 23, 2012
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 38 0.2 E 12.5 68 0 0.0
1 AM 24 0.7 S 11.6 73 0 0.0
2 AM 23 0.5 SE 10.8 74 0 0.0
3 AM 23 0.6 S 9.9 76 0 0.0
4 AM 26 0.5 SE 9.5 73 0 0.0
5 AM 26 0.4 SE 8.7 74 0 0.0
6 AM 27 0.7 SE 7.7 78 1 0.0
7 AM 28 0.9 SE 8.1 72 11 0.0
8 AM 23 0.2 NE 8.4 70 30 0.0
9 AM 37 0.3 E 14.4 48 359 0.0
10 AM 41 0.5 NW 18.6 40 694 0.0
11 AM 41 0.9 NW 19.8 36 839 0.0
12 PM 41 1.6 E 22.1 28 941 0.0
1 PM 42 1.7 NE 22.6 32 985 0.0
2 PM 46 1.7 NE 23.1 32 991 0.0
3 PM 47 1.5 NE 23.2 30 894 0.0
4 PM 49 1.5 NE 23.2 28 802 0.0
5 PM 53 1.6 N 22.4 33 637 0.0
6 PM 54 1.0 NW 19.5 43 193 0.0
7 PM 56 0.8 NW 16.9 52 19 0.0
8 PM 58 0.7 NW 15.1 59 10 0.0
9 PM 53 0.5 NW 13.7 65 1 0.0
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updated on 05/24/2012 3:40 AM  I   http://www.nature.nps.gov/air/data/current/data_YOSY2.cfm   I  Email: Webmaster