The report below displays data on the total number of days in Indiana with an Air Quality Index Value of
over 100. This data has been compiled from 1990-2007. Some states have multiple monitoring stations and each will be listed in the reports below.
Other states do not have any monitoring stations in which case we have selected the closest station available.
Year
Cincinnati
Gary
Indianapolis
Louisville
1990
32
14
28
27
1991
29
25
27
32
1992
6
14
14
6
1993
24
3
24
34
1994
29
12
45
47
1995
33
30
39
41
1996
30
17
32
28
1997
20
15
27
32
1998
36
22
36
48
1999
40
33
43
78
2000
22
18
17
29
2001
28
45
27
36
2002
42
27
38
50
2003
22
15
17
21
2004
8
8
4
9
2005
33
19
34
39
2006
15
3
14
15
2007
39
11
24
30
According to the EPA, an Air Quality Index Value of over 100 presents some level of health concern. The higher the number, the
higher the level of concern. The EPA provides the following table and more information on Air Quality Index can be found at
WikiPedia.
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