Mississippi Nonattainment/Maintenance Status for Each County by Year for All Criteria PollutantsAs of September 22, 2016
The 8-hour Ozone (1997) standard was revoked on April 6, 2015 and the 1-hour Ozone (1979) standard was revoked on June 15, 2005.
Listed by County, NAAQS, then Area
|Select a State:||AK | AL | AR | AZ | CA | CO | CT | DC | DE | FL | GA | GU | IA | ID | IL | IN | KS | KY | LA | MA | MD | ME | MI | MN | |
MO | MS | MT | NC | NE | NH | NJ | NM | NV | NY | OH | OR | PA | PR | RI | SC | TN | TX | UT | VA | WA | WI | WV | WY |
|County||NAAQS||Area Name||Nonattainment in Year||Redesignation
|De Soto Co||8-Hour Ozone (2008)||Memphis, TN-MS-AR||