The report below displays data on the total number of days in Utah 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
Salt Lake City-Ogden
1990
8
1991
5
1992
2
1993
8
1994
7
1995
32
1996
7
1997
10
1998
12
1999
20
2000
5
2001
4
2002
26
2003
18
2004
6
2005
10
2006
8
2007
3
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.
