The report below displays data on the total number of days in Mississippi 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
Memphis
1990
50
1991
29
1992
27
1993
31
1994
37
1995
56
1996
39
1997
35
1998
55
1999
56
2000
52
2001
33
2002
34
2003
29
2004
11
2005
37
2006
30
2007
35
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.