Emergency Burn Ban In Effect 10/26/24 - An emergency burn ban is now in effect for all Connecticut State Parks, Forests, and Wildlife Management areas, prohibiting the use of all outdoor grills, firepits, and campfires, and the kindling and use of flame outdoors. DEEP and local agencies are working to contain several active fires across the state. Please avoid all affected State Parks and Forests, as well as the blue-blazed Mattabesett Trail. The Enduro Trail in Voluntown and portions of North Stonington within the Pachaug State Forest are closed at this time. Please note that today's forest fire danger report remains at an 'extreme' level. More information about the current fire danger, burn ban and recommended safety measures can be found here

Annual Summary Information for Ozone

Prior to 2008, the 8-hour ozone exceedance day tables reflect the 1997 NAAQS (84 ppb) and from 2008 forward, the tables reflect the 2008 NAAQS (75 ppb).  Tables from 2016 forward reflect the 2015 NAAQS (70 ppb). EPA's 2004 Implementation Rule revoked the 1-hour NAAQS, effective June 15, 2005, but states are not allowed to backslide from existing 1-hour ozone requirements. Note that the ozone season was expanded in 2017 to include March through September.
 

Year

2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013

8-hr Ozone

Exceedance Days

23 19 23 21 17 21 23 20 31 22 8 18

Year

2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002

2001

8-hr Ozone

Exceedance Days

27 14 24 6 22 17 13 20 6 14 36

26

Current Year 8-Hour Ozone Tables

2024

8-hour Tables

March

April

May

June

July

August

September

 

Year

Previous Year Ozone Tables

2023  8-hour Ozone
2022  8-hour Ozone 

2021

-

8-hour Ozone

2020

-

8-hour Ozone

2019

1-hour Ozone

8-hour Ozone

2018

1-hour Ozone

8-hour Ozone

2017

1-hour Ozone

8-hour Ozone

2016

1-hour Ozone

8-hour Ozone

2015

1-hour Ozone

8-hour Ozone

2014

1-hour Ozone

8-hour Ozone

2013

1-hour Ozone

8-hour Ozone

2012

1-hour Ozone

8-hour Ozone

2011

1-hour Ozone

8-hour Ozone

2010

1-hour Ozone

8-hour Ozone

2009

1-hour Ozone

8-hour Ozone

2008

1-hour Ozone

8-hour Ozone

2007

1-hour Ozone

8-hour Ozone

2006

1-hour Ozone

8-hour Ozone

2005

1-hour Ozone

8-hour Ozone

2004

1-hour Ozone

8-hour Ozone

2003

1-hour Ozone

8-hour Ozone

2002

1-hour Ozone

8-hour Ozone

2001

1-hour Ozone

8-hour Ozone

2000

1-hour Ozone

8-hour Ozone

1999

1-hour Ozone

8-hour Ozone

1998

1-hour Ozone

8-hour Ozone

 
 
 
Content last updated on October 1, 2024