The report below displays data on the total number of days in Wisconsin 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
Milwaukee-Waukesha
Minneapolis-St. Paul
1990
19
4
1991
38
2
1992
14
5
1993
11
0
1994
17
4
1995
23
9
1996
15
0
1997
6
4
1998
16
4
1999
26
4
2000
9
8
2001
25
10
2002
22
4
2003
17
5
2004
6
0
2005
24
7
2006
6
1
2007
11
5
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.