SIP Status Reports

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Status of Louisiana Designated Areas

Louisiana Areas by NAAQS
As of 10/26/2020

Jump to Louisiana section for: CO (1971) Lead (1978) Lead (2008) NO2 (1971) Ozone-1Hr (1979) Ozone-8Hr (1997) Ozone-8Hr (2008) Ozone-8Hr (2015) PM-10 (1987) PM-2.5 (1997) PM-2.5 (2006) PM-2.5 (2012) SO2 (1971) SO2 (2010)


Louisiana CO (1971) Areas     Return to map
 
No designated areas for this pollutant.

Louisiana Lead (1978) Areas     Return to map Top of page

No designated areas for this pollutant.

Louisiana Lead (2008) Areas     Return to map Top of page

No designated areas for this pollutant.

Louisiana NO2 (1971) Areas     Return to map Top of page

No designated areas for this pollutant.

Louisiana 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
Baton Rouge Area Nonattainment (NAAQS revoked) 11/15/1990 Severe-15 732,587 2017-2019 0.093 Yes 27 / 27 03/12/2010
75 FR 6570
   
Lafayette Area Maintenance (NAAQS revoked) 11/15/1990 Transitional 221,578 2017-2019 0.075 Yes 1 / 1  
 
05/25/1993 10/17/1995
60 FR 43020
Lake Charles Area Maintenance (NAAQS revoked) 11/15/1990 Marginal 192,768 2017-2019 0.083 Yes 4 / 4  
 
12/20/1995 06/02/1997
62 FR 24036
New Orleans Area Maintenance (NAAQS revoked) 11/15/1990 Transitional 865,058 2017-2019 0.084 Yes 1 / 1  
 
04/30/1993 12/01/1995
60 FR 51354
Pointe Coupee Parish Area Maintenance (NAAQS revoked) 11/15/1990 Marginal 22,802 2017-2019 0.085 Yes 0 / 0  
 
12/20/1995 12/20/1996
62 FR 648

Louisiana 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
Baton Rouge Area Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 732,587 2017-2019 0.071 Yes 54 / 51 10/12/2010
75 FR 54778
08/31/2010 12/30/2011
76 FR 74000

Louisiana 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
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
Baton Rouge Maintenance 07/20/2012 Marginal 732,587 2017-2019 0.071 Yes 3 / 3 06/03/2016
81 FR 26697
05/16/2016 03/21/2017
81 FR 95051

Louisiana Ozone-8Hr (2015) Areas     Return to map Top of page

No designated areas for this pollutant.

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

No designated areas for this pollutant.

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

No designated areas for this pollutant.

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

No designated areas for this pollutant.

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

No designated areas for this pollutant.

Louisiana SO2 (1971) Areas     Return to map Top of page

No designated areas for this pollutant.

Louisiana 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
Evangeline Parish (Partial) Nonattainment 04/09/2018   124 2017-2019   No Data 6 / 0  
 
   
St. Bernard Parish Nonattainment 10/04/2013   35,897 2017-2019 44 Yes 6 / 6  
 
   
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.