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Number of Ozone Exceedance Days by Year and Month
YEAR
APRIL
MAY
JUNE
JULY
AUGUST
SEPT
OCT
TOTAL # DAYS .070ppm STANDARD
(Previous .075 ppm standard)
2017
                 
2016
7
5
2
2
2015
7
15
2
2014
 
0
2013
13
10, 13
4, 6, 7
 
6
2012
15, 16
24, 25, 26, 28
8, 9, 11, 12, 14, 20, 21, 27
1, 2, 3, 4, 6, 7, 8, 9, 12, 21, 29
6
 
26
2011
12, 13, 17
23
5, 6, 7, 14, 15, 25
3, 4, 6, 9, 15, 19, 20, 21, 26, 27, 28, 30
1, 13, 28
 
25
2010
26
27
 
2
2009
22
24, 26
2, 15
12
 
6
2008
3, 23, 28, 31
4, 5
28
 
7
 
.075 ppm standard
Previous .084 ppm standard
2007
13, 14
 
4
2
2006
8, 30
18, 20
4, 19, 23
15, 30
 
27
9
2005
21, 22
29
8
1, 2
 
23
6
2004
 
3
0
2003
12
30
19
21, 29
22, 23, 24, 25,
 
22
9
2002
23, 24
6, 8, 9
10
 
24
6
2001
26, 27
4, 5, 7
13
 
26
6
2000
14, 19
2, 15, 23
1, 2, 3, 13, 19
 
24
10