1 

2010 Nitrogen Dioxide Infrastructure SIP Prongs 1 & 2, Final 

State of Mississippi 

Mississippi Certification 

Clean Air Act Section 110(a)(1) and (2) 

2010 Nitrogen Dioxide Requirements

Section 110(a)(2)(D) Prongs 1 and 2 

This certification addresses Mississippi’s obligations under Section 110(a)(2)(D) Prongs 1 and 2 

of the Clean Air Act for the 2010 Nitrogen Dioxide National Ambient Air Quality Standards 

(NAAQS). The following state regulations potentially control nitrogen oxide/nitrogen dioxide 

emitting sources in the State of Mississippi and are part of the State Implementation Plan (SIP). 

APC-S-1 Mississippi Commission on Environmental Quality 

“Air Emission Regulations for the Prevention, Abatement, and Control of Air 

Contaminants” 

APC-S-2 Mississippi Commission on Environmental Quality 

“Permit Regulation for the Construction and/or Operation of Air Emissions 

Equipment” 

APC-S-3 Mississippi Commission on Environmental Quality 

“Mississippi Regulations for the Prevention of Air Pollution Emergency Episodes” 

APC-S-5 Mississippi Commission on Environmental Quality 

“Mississippi Regulations for the Prevention of Significant Deterioration of Air 

Quality” 

Appendix A-9 Mississippi Code Title 49 

Section 110(a)(2)(D) 

1. Contribute significantly to nonattainment of NAAQS for areas in another state (Prong 

1). 

All monitored sites in Mississippi and surrounding states have been designated as 

unclassifiable/attainment for the 2010 NO2 1-hour primary standard. In Table 1, the 

Nitrogen Oxides (NOx) emissions are listed by category for the years 2005, 2008, and 

2011. Although there is some variation within the individual categories, the total NOx 

emissions are showing a significant downward trend. In Table 2, the total NOx 

emissions from Mississippi are compared to the total NOx emissions from surrounding 

states. This table illustrates that the surrounding states are also showing downward 

trends in NOx emissions. In Table 3, the highest monitored 2010 NO2 NAAQS Design 

Values for Mississippi and surrounding states are shown. All design values data shows 

that these sites are meeting the 2010 NO2 1-hour primary standard. Thus, Mississippi 

does not significantly contribute to nonattainment areas in nearby states because the 

nearby states have not been designated as nonattainment for this standard. In Table 4, 
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2010 Nitrogen Dioxide Infrastructure SIP Prongs 1 & 2, Final 

State of Mississippi 

the Mississippi monitored 2010 NO2 NAAQS Design Values shows the general 

downward trend of NO2 concentrations at this site. 

Table 1. 2005–2011 Mississippi Nitrogen Oxides Emissions by Category 

Category 2005 NOx 

Emissions (Tons)

2008 NOx 

Emissions (Tons) 

2011 NOx 

Emissions 

(Tons) 

Point Sources 95,755 95,154 65,737

Area (Non-Point 

Sources) 46,896 35,502 43,048

On-Road Mobile 

Sources 88,695 96,749 91,054

Non-Road Mobile 

Sources 25,676 19,438 17,265

Total 257,022 246,843 217,104

Source : National Emissions Inventory (except 2005 Area and Non-road Mobile are 

based on state data) 

Table 2. 2005–2011 Mississippi and Surrounding States Total Nitrogen Oxides 

Emissions 

State 

2005 NOx 

Emissions 

(Tons) 

% 

Change

2008 NOx 

Emissions 

(Tons) 

% 

Change 

2011 NOx 

Emissions 

(Tons) 

Mississippi 257,022 -4.0 246,843 -12.0 217,104

Alabama 435,826 -12.3 382,210 -5.9 359,836

Arkansas 238,943 -4.6 227,983 1.9 232,268

Louisiana 669,859 -24.7 504,410 5.3 531,069

Tennessee 457,717 -8.4 419,236 -23.1 322,514

Source : National Emissions Inventory 

Table 3. Highest Monitored 2010 NO2 NAAQS Design Values (ppb) 

State 

2009-

2011 

DV 

% of 

NAAQS 

2010-

2012 

DV 

% of 

NAAQS 

2011-

2013 

DV 

% of 

NAAQS 

2012-

2014 

DV 

% of 

NAAQS 

Mississippi 35 35% 34 34% 33 33% 32 32%

Alabama * * * * 46 46% 51 51%

Arkansas 46 46% 51 51% 50 50% 49 49%

Louisiana 55 55% 54 54% 52 52% 49 49%

Tennessee 43 43% 44 44% 42 42% 51 51%

* Invalid Data 

Source: EPA AQS 
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2010 Nitrogen Dioxide Infrastructure SIP Prongs 1 & 2, Final 

State of Mississippi 

Table 4. Mississippi Monitored 2010 NO2 NAAQS Design Values (ppb) 

County 

2009-

2011 

DV 

% of 

NAAQS

2010-

2012 

DV 

% of 

NAAQS

2011-

2013 

DV 

% of 

NAAQS 

2012-

2014 

DV 

% of 

NAAQS

Jackson 35 35% 34 34% 33 33% 32 32% 

Source: EPA AQS 

SIP Section APC-S-2, Section VI. provides for the enforcement of measures described 

in Section 110(a)(2)(A). SIP Section APC-S-2, Section 1.D. lists permitting 

requirements including those for minor new source review permitting. SIP Section 

APC-S-2, Section II.A. requires that no permit shall be issued unless the applicant has 

complied with applicable requirements from state regulation APC-S-4 (Ambient Air 

Quality Standards) including the NO2 NAAQS. The APC-S-4 regulations were 

updated on October 24, 2013, using a new regulatory numbering system. Those 

regulations are shown here. Therefore, the aforementioned state regulations control 

and regulate sources of NO2 emissions through the state’s permitting program.

2. Interfere with maintenance of NAAQS by any other State (Prong 2). 

For the same reasons listed in Prong 1, Mississippi does not interfere with maintenance 

areas in nearby states because the nearby states do not have maintenance areas for this 

standard. 

 
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2010 Nitrogen Dioxide Infrastructure SIP Prongs 1 & 2, Final 

State of Mississippi 

Response to Comments for Mississippi 2010 Nitrogen Dioxide Infrastructure SIP 

for Clean Air Act Requirements Section 110(a)(2)(D) Prongs 1 and 2. 

EPA Region IV commented a comment letter dated May 6, 2016. The comments 

concerned the emissions inventory and the appropriate changes have been made. No 

other comments were received during the public comment period. The EPA comment 

letter follows this page. 

 


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2010 Nitrogen Dioxide Infrastructure SIP Prongs 1 & 2, Final 

State of Mississippi 

Public participation for Mississippi 2010 2010 Nitrogen Dioxide Infrastructure 

SIP for Clean Air Act Requirements Section 110(a)(2)(D) Prongs 1 and 2. 

Public participation for the above referenced infrastructure SIP was achieved by a 

public comment period that began on April 6, 2016 and ended on May 6, 2016. The 

public notice was published consistent with procedures approved by EPA. 

The notice of public comment period was published on April 6, 2016, in daily 

newspapers in the cities of Gulfport, Jackson, and Tupelo in the State of Mississippi. 

The notice of public hearing and the draft SIP was made available for public review in 

the main branches of the public libraries in Gulfport and Tupelo, Mississippi and at the 

Mississippi Department of Environmental Quality, 515 E. Amite St., Jackson, 

Mississippi, 39201 and was also made available on the Department’s website 

http://www.deq.state.ms.us. 

The public notice and proofs of publication follows this page. 

 
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2010 Nitrogen Dioxide Infrastructure SIP Prongs 1 & 2, Final 

State of Mississippi 

Public Notice 

Mississippi Commission on Environmental Quality 

P. O. Box 2261 

Jackson, MS 39225 

Telephone No. (601) 961-5171 

Public Notice Start Date: April 6, 2016 MDEQ Contact: Jerry Beasley 

Deadline for Comment: May 6, 2016 

Please take note that the Mississippi Commission on Environmental Quality (“Commission”) is 

providing draft information for comment regarding the Mississippi Certification that the State 

Implementation Plan for the Control of Air Pollution is adequate to comply with the requirements 

of Section 110(a)(2) Prongs 1 & 2 of the Federal Clean Air Act for the 2010 Nitrogen Dioxide 1-

hour Primary National Ambient Air Quality Standard (NAAQS) as promulgated by the U.S. 

Environmental Protection Agency (EPA). 

Copies of the draft certification may be obtained by writing or calling Mr. Lorenzo Boddie at the 

address and telephone number listed above. The draft certification information will also be 

available for public review from Wednesday, April 6, 2016 through Friday, May 6, 2016 at the 

main branch of public libraries in cities of Gulfport and Tupelo. For those persons with internet 

access, the draft certification information may be found on the Mississippi Department of 

Environmental Quality’s website at http://www.deq.state.ms.us by clicking on Programs/Air/New 

Information. 

Persons wishing to comment on the draft certification are invited to submit comments in writing 

to Jerry Beasley at the Commission’s mailing address shown above or by courier to Mississippi 

Department of Environmental Quality, 515 E. Amite St., Jackson, Mississippi 39201, no later than 

5:00 p.m. on Friday, May 6, 2016. All comments received by this date will be considered in 

preparation of the final submission of the certification information to EPA. A public hearing may 

be held if the Commission finds a significant degree of public interest in the draft certification. 

Please bring the foregoing to the attention of persons whom you know will be interested.