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Region 1: EPA New England

RHODE ISLAND

For 1999 and after, click on the date for the corresponding eight-hour average peak ozone map for that day.

In March 2008, EPA revised the 8-hour ozone standard and changed the Air Quality Index (AQI) to align with this new standard. Maps for days in 2007 and earlier are based on the 1997 8-hour ozone standard. Maps for 2008 are based on the new 2008 ozone standard and the revised AQI. Click Here for a table showing the revised AQI breakpoints for the 2008 ozone standard.

W. Greenwich | Narragansett | Providence | E. Providence

W. Greenwich
Operating from 1982 to Present
Year # Days > 1st High (ppm) Date 2nd High (ppm) Date 3rd High (ppm) Date 4th High (ppm) Date
0.084 0.075
1994 7 20 0.123 July 13 0.108 June 18 0.105 Aug 9 0.091 July 7
1995 11 17 0.139 July 14 0.120 June 19 0.110 Aug 21 0.107 Aug 1
1996 4 10 0.101 July 6 0.087 Aug 23 0.086 July 18 0.085 Aug 7
1997 10 16 0.106 June 30 0.100 June 22 0.098 July 15 0.098 Aug 2
1998 4 10 0.097 Aug 24 0.092 Sept 27 0.091 Sept 6 0.087 June 25
1999 7 13 0.113 July 16 0.104 July 17 0.095 June 24 0.091 July 6
2000 5 13 0.098 May 9 0.094 June 9 0.089 July 3 0.087 June 2
2001 13 20 0.118 Aug 9 0.115 June 30 0.112 July 25 0.105 Aug 2
2002 12 23 0.120 Aug 13 0.111 July 9 0.101 July 1 0.100 Aug 12
2003 1 7 0.105 June 27 0.084 Aug 22 0.083 July 27 0.082 July 5
2004 2 4 0.103 June 9 0.095 June 8 0.081 May 12 0.080 June 15
2005 5 12 0.098 June 25 0.097 Aug 13 0.096 Aug 5 0.090 April 20
2006 1 5 0.091 July 18 0.080 May 25 0.080 June 18 0.079 July 2
2007 6 10 0.092 June 1 0.091 May 25 0.091 June 27 0.089 June 26
2008 1 2 0.086 July 19 0.082 June 10 0.074 June 30 0.074 July 26
2009 0 0 0.074 April 28 0.073 May 22 0.071 Aug 20 0.069 Aug 18
2010 0 2 0.081 Sep 2 0.076 June 24 0.073 July 17 0.072 April 7
2011 0 4 0.084 July 6 0.081 July 11 0.079 June 21 0.078 June 8
2012 0 2 0.082 June 29 0.078 Aug 31 0.075 May 13 0.072 April 15
2013 0 2 0.083 June 25 0.081 May 31 0.073 May 30 0.073 Aug 21

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Narragansett
Operating from July 1997 to Present
Year # Days > 1st High (ppm) Date 2nd High (ppm) Date 3rd High (ppm) Date 4th High (ppm) Date
0.084 0.075
1997* 3 7 0.097 Aug 2 0.095 July 17 0.087 Aug 3 0.084 Aug 16
1998 1 6 0.090 June 26 0.081 June 25 0.081 Aug 3 0.080 May 28
1999 11 14 0.118 June 7 0.106 July 6 0.098 July 16 0.090 June 23
2000 4 6 0.126 June 10 0.087 May 8 0.085 June 9 0.085 July 2
2001 11 18 0.123 Aug 7 0.123 Aug 9 0.101 May 4 0.101 Aug 2
2002 8 21 0.112 July 2 0.101 July 18 0.098 July 1 0.094 Aug 4
2003 8 11 0.113 June 27 0.097 June 26 0.093 June 25 0.092 Aug 16
2004 4 5 0.110 June 9 0.097 June 8 0.095 May 12 0.086 May 11
2005 5 13 0.093 June 8 0.093 Aug 5 0.090 April 20 0.090 Aug 11
2006 3 11 0.130 July 18 0.100 July 17 0.093 Aug 1 0.081 July 4
2007 3 9 0.100 May 25 0.089 July 8 0.085 June 28 0.083 Aug 2
2008 2 4 0.089 June 10 0.086 July 18 0.082 July 19 0.081 July 17
2009 0 0 0.075 Aug 4 0.075 Aug 18 0.075 Aug 26 0.068 May 20
2010 0 4 0.083 July 5 0.080 July 17 0.080 Sep 1 0.079 June 24
2011 0 3 0.084 July 16 0.084 July 22 0.083 June 8 0.074 July 23
2012 2 7 0.097 June 29 0.086 June 30 0.084 Aug 31 0.082 July 18
2013 1 4 0.093 July 18 0.081 May 30 0.073 June 25 0.073 June 24

*Site did not meet 75% minimum data completeness requirement

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Providence
Operating from 1982 to 1997
Year # Days > 1st High (ppm) Date 2nd High (ppm) Date 3rd High (ppm) Date 4th High (ppm) Date
0.084 0.075
1994 3 8 0.108 July 13 0.094 June 18 0.094 Aug 9 0.082 July 2
1995 5 6 0.110 July 14 0.097 June 18 0.094 Aug 1 0.089 Aug 21
1996 1 1 0.085 July 6 0.070 Aug 23 0.069 July 16 0.064 June 1
1997 4 6 0.097 July 15 0.092 Aug 10 0.089 July 17 0.085 June 21

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E. Providence
Operating from 1994 to Present
Year # Days > 1st High (ppm) Date 2nd High (ppm) Date 3rd High (ppm) Date 4th High (ppm) Date
0.084 0.075
1994 5 15 0.114 July 13 0.101 Aug 9 0.089 July 7 0.089 June 18
1995 7 13 0.119 July 14 0.106 Aug 1 0.099 June 18 0.096 Aug 21
1996 2 6 0.098 July 6 0.089 July 18 0.083 Aug 5 0.083 Aug 23
1997 3 8 0.097 July 15 0.091 June 30 0.090 July 17 0.084 Aug 10
1998 2 6 0.092 Aug 24 0.085 Sept 27 0.082 July 15 0.077 May 28
1999 2 7 0.096 July 16 0.088 June 24 0.084 July 17 0.080 May 31
2000 2 6 0.112 June 10 0.089 May 9 0.082 June 2 0.080 June 9
2001 10 19 0.108 June 30 0.108 Aug 7 0.106 Aug 9 0.102 Aug 2
2002 9 27 0.120 Aug 13 0.103 July 9 0.097 July 1 0.092 Aug 14
2003 4 7 0.104 June 27 0.091 Aug 22 0.087 June 25 0.085 July 27
2004 2 4 0.094 June 9 0.093 June 8 0.080 June 15 0.077 May 12
2005 4 7 0.095 June 25 0.086 June 26 0.086 Aug 5 0.085 April 20
2006 1 5 0.095 July 18 0.082 July 2 0.082 July 17 0.081 June 18
2007 4 11 0.096 May 25 0.090 June 27 0.089 June 26 0.088 Aug 3
2008 3 4 0.088 June 10 0.086 July 19 0.085 June 14 0.077 July 26
2009 0 1 0.076 April 28 0.074 May 22 0.070 Aug 18 0.066 Aug 17
2010 1 3 0.086 Sep 2 0.076 July 17 0.076 July 21 0.075 Sep 1
2011 0 3 0.078 June 8 0.078 July 6 0.076 June 21 0.073 July 11
2012 2 9 0.093 Aug 31 0.085 June 29 0.080 July 17 0.079 July 14
2013 0 6 0.084 Sept 11 0.081 July 19 0.078 July 18 0.076 May 31

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