SIP Status Reports

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Status of New Hampshire Designated Areas

New Hampshire Areas by NAAQS
As of 09/24/2017

Jump to New Hampshire section for: CO (1971) Lead (1978) Lead (2008) NO2 (1971) Ozone-1Hr (1979) Ozone-8Hr (1997) Ozone-8Hr (2008) PM-10 (1987) PM-2.5 (1997) PM-2.5 (2006) PM-2.5 (2012) SO2 (1971) SO2 (2010)


New Hampshire CO (1971) Areas    Return to map
 
Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
Annual
(ppm)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Manchester Area Maintenance 11/15/1990 Not Classified 109,565 2016   No Data 0 / 0 01/29/2001
65 FR 71060
02/02/1999 01/29/2001
65 FR 71060
Nashua Area Maintenance 11/15/1990 Not Classified 86,494 2016   No Data 0 / 0 01/29/2001
65 FR 71060
02/01/1999 01/29/2001
65 FR 71060

New Hampshire Lead (1978) Areas     Return to map Top of page

No designated areas for this pollutant.

New Hampshire Lead (2008) Areas     Return to map Top of page

No designated areas for this pollutant.

New Hampshire NO2 (1971) Areas     Return to map Top of page

No designated areas for this pollutant.

New Hampshire Ozone-1Hr (1979) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
Annual
(ppm)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Boston-Lawrence-Worcester Area Nonattainment (NAAQS revoked) 11/15/1990 Serious 366,900 2014-2016 0.086 Yes 26 / 26 06/28/2012
77 FR 31496
   
Manchester Area Nonattainment (NAAQS revoked) 11/15/1990 Marginal 392,234 2014-2016 0.085 Yes 4 / 4 11/29/2012
77 FR 65625
   
Portsmouth-Dover-Rochester Area Nonattainment (NAAQS revoked) 11/15/1990 Serious 206,398 2014-2016 0.086 Yes 26 / 26 11/29/2012
77 FR 65625
   
OTR 1990               5 / 5  
 
   
OTR               13 / 13  
 
   

New Hampshire Ozone-8Hr (1997) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
Annual
(ppm)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Boston-Manchester-Portsmouth (SE) Area Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 740,556 2014-2016 0.067 Yes 53 / 50 04/18/2011
76 FR 14805
03/02/2012 03/04/2013
78 FR 6741
OTR               46 / 46  
 
   

New Hampshire Ozone-8Hr (2008) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
OTR               47 / 0  
 
   

New Hampshire PM-10 (1987) Areas     Return to map Top of page

No designated areas for this pollutant.

New Hampshire PM-2.5 (1997) Areas     Return to map Top of page

No designated areas for this pollutant.

New Hampshire PM-2.5 (2006) Areas     Return to map Top of page

No designated areas for this pollutant.

New Hampshire PM-2.5 (2012) Areas     Return to map Top of page

No designated areas for this pollutant.

New Hampshire SO2 (1971) Areas     Return to map Top of page

No designated areas for this pollutant.

New Hampshire SO2 (2010) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
3 Year
1-⁠Hour
Design Value
(ppb)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Central New Hampshire Nonattainment 10/04/2013   124,453 2014-2016 20 Yes 6 / 0  
 
   
We have made our best effort to ensure that the data contained in these reports is accurate. We note that there may be brief delays in updating the reports as we receive new state submissions and we take rulemaking action on plans. In order to assist us in providing accurate information, we request that you contact us by clicking on the "Contact Us" link near the top of this page with any comments regarding or corrections to the posted information, including concerns about whether the entries reflect the most recent status.

Current and historical design value data can be found on the EPA Air Quality Design Values website and the EPA Green Book contains comprehensive nonattainment area, designation status, and historical information.

The level of the 1-hour NAAQS for sulfur dioxide is 75 parts per billion (ppb) calculated as the 3-year average of the 99th percentile of the annual distribution of daily maximum 1-hour average concentrations.