The report below displays data on the total number of days in Missouri 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
Kansas City
St. Louis
1990
6
30
1991
26
33
1992
5
23
1993
14
20
1994
23
49
1995
34
46
1996
15
35
1997
23
32
1998
25
45
1999
14
45
2000
23
30
2001
14
36
2002
23
49
2003
22
29
2004
1
11
2005
26
47
2006
24
22
2007
10
34
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.
