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Massachusetts—TSP
Massachusetts—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
1 Each city and town, with the exception of Boston and Milton and Belchertown, Granby, Ludlow, Palmer, South Hadley and Wilbraham as indicated above, is a separate Section 107 designated attainment area.
Massachusetts—2010 Sulfur Dioxide NAAQS
[Primary]
1 Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country.
2 This date is April 9, 2018, unless otherwise noted.
Massachusetts—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Massachusetts—Ozone (1-Hour Standard) 3
2 This date is January 16, 2001.
3 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Massachusetts.
Massachusetts—1997 Annual PM2.5 NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Massachusetts—2012 Annual PM2.5 NAAQS
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Massachusetts—1997 24-Hour PM2.5 NAAQS
Massachusetts—2006 24-Hour PM2.5 NAAQS
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Massachusetts—NO2 (1971 Annual Standard)
1 Each city and town is a separate Section 107 desginated Attainment Area.
Massachusetts—NO2 (2010 1-Hour Standard)
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Massachusetts—1997 8-Hour Ozone NAAQS
1 This date is June 15, 2004, unless otherwise noted.
Massachusetts—2008 8-Hour Ozone NAAQS
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes Indian country of the tribe listed in this table located in the identified area. Information pertaining to areas of Indian country in this table is intended for CAA planning purposes only and is not an EPA determination of Indian country status or any Indian country boundary. EPA lacks the authority to establish Indian country land status, and is making no determination of Indian country boundaries, in this table.
4 Includes any Indian country in each county or area, unless otherwise specified.
Massachusetts—2015 8-Hour Ozone NAAQS
2 This date is August 3, 2018, unless otherwise noted.
Massachusetts—2008 Lead NAAQS
1 December 31, 2011 unless otherwise noted.