The report below displays data on the total number of days in West Virginia 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
WashingtonDC
1990
38
1991
69
1992
30
1993
63
1994
43
1995
54
1996
39
1997
51
1998
65
1999
61
2000
35
2001
41
2002
54
2003
21
2004
21
2005
36
2006
32
2007
38
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.
