SIP Status Reports

You are here: EPA Home > Air Quality Implementation Plans > SIP Status Reports > Status of Mississippi Designated Areas

Status of Mississippi Designated Areas

Mississippi Areas by NAAQS
NOTE: As of 03/12/2021, these reports are no longer being updated. For the latest information, see the SIP Status Tools.

Jump to Mississippi 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)

Mississippi CO (1971) Areas Return to map
No designated areas for this pollutant.
Mississippi Lead (1978) Areas Return to map Top of page
No designated areas for this pollutant.
Mississippi Lead (2008) Areas Return to map Top of page
No designated areas for this pollutant.
Mississippi NO2 (1971) Areas Return to map Top of page
No designated areas for this pollutant.
Mississippi Ozone-1Hr (1979) Areas Return to map Top of page
No designated areas for this pollutant.
Mississippi Ozone-8Hr (1997) Areas Return to map Top of page
No designated areas for this pollutant.
Mississippi 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
Memphis	Maintenance	07/20/2012	Marginal	148,923	2017-2019	0.069	Yes	3 / 2	06/03/2016 81 FR 26697	12/04/2015	05/09/2016 81 FR 20543
Mississippi Ozone-8Hr (2015) Areas Return to map Top of page
No designated areas for this pollutant.
Mississippi PM-10 (1987) Areas Return to map Top of page
No designated areas for this pollutant.
Mississippi PM-2.5 (1997) Areas Return to map Top of page
No designated areas for this pollutant.
Mississippi PM-2.5 (2006) Areas Return to map Top of page
No designated areas for this pollutant.
Mississippi PM-2.5 (2012) Areas Return to map Top of page
No designated areas for this pollutant.
Mississippi SO2 (1971) Areas Return to map Top of page
No designated areas for this pollutant.
Mississippi SO2 (2010) Areas Return to map Top of page
No designated areas for this pollutant.

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.