The report below displays data on the total number of days in South Carolina 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
Charleston-North Charleston
Charlotte-Gastonia-Rock Hill
Greenville-Spartanburg-Anderson
1990
4
60
16
1991
0
31
18
1992
4
30
17
1993
5
47
31
1994
3
15
14
1995
1
32
30
1996
5
40
27
1997
5
41
40
1998
12
67
57
1999
13
62
56
2000
9
40
47
2001
0
32
31
2002
4
42
49
2003
3
12
13
2004
3
17
13
2005
8
26
22
2006
7
21
20
2007
5
33
14
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.