The report below displays data on the total number of days in Connecticut 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
Hartford
New Haven-Meriden
1990
17
0
1991
33
0
1992
20
0
1993
19
0
1994
23
0
1995
26
0
1996
10
0
1997
18
0
1998
22
0
1999
22
0
2000
14
2
2001
26
2
2002
30
1
2003
13
3
2004
9
1
2005
19
3
2006
12
1
2007
16
0
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.