40 C.F.R. § 81.314
Current through September 30, 2024
Illinois-TSP
| Designated area | Does not meet primary | Does not meet secondary | Cannot be classified | Better than national standards |
| Cook County: | ||||
| a. Lyons Township | X | X | ||
| b. The area bounded on the north by 79th Street, on the west by Interstate 57 between Sibley Boulevard and Interstate 94 and by Interstate 94 between Interstate 57 and 79th Street, on the south by Sibley Boulevard, and on the east by the Illinois/Indiana State line | X | X | ||
| LaSalle County: | ||||
| Those portions of LaSalle Township located in the following Townships, ranges, and sections: T33N, R1E, S24; T33N, R1E, S25; T33N, R2E, S30; T33N, R2E, S31; and T33N, R1E, S36 | X | X | ||
| Those portions of Deer Park Township located in the following Townships, ranges, and sections: T32N, R1E, S1; T32N, R2E, S6; T33N, R1E, S24; T33N, R1E, S25; T33N, R2E, S30; T33N, R2E, S31; and T33N, R1E, S36 | X | |||
| Madison County: Granite City Township and Nameoki Township | X | X | ||
| All other portions of Illinois counties | X |
Illinois-1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
| Designated area | Does not meet primary standards | Does not meet secondary standards | Cannot be classified | Better than national standards |
| AQCR 65: | ||||
| Fulton County | X | |||
| Hancock County | X | |||
| Henderson County | X | |||
| Knox County | X | |||
| McDonough County | X | |||
| Mason County | X | |||
| Peoria County | X | |||
| Tazewell County | X | |||
| Warren County | X | |||
| Woodford County | X | |||
| Lee County | X | |||
| AQCR 66: | ||||
| Champaign County | X | |||
| Clark County | X | |||
| Coles County | X | |||
| Cumberland County | X | |||
| De Witt County | X | |||
| Douglas County | X | |||
| Edgar County | X | |||
| Ford County | X | |||
| Iroquois County | X | |||
| Livingston County | X | |||
| McLean County | X | |||
| Moultrie County | X | |||
| Platt County | X | |||
| Shelby County | X | |||
| Vermilion County | X | |||
| AQCR 67: | ||||
| Cook County: | ||||
| Bremer Twp | X | |||
| Calumet Twp | X | |||
| Thornton Twp | X | |||
| Worth Twp | X | |||
| All other Cook County twps | X | |||
| Will County: | ||||
| Channahon Twp | X | |||
| Du Page Twp | X | |||
| Joliet Twp | X | |||
| Lockport Twp | X | |||
| Troy Twp | X | |||
| All other Will County twps | X | |||
| Du Page County | X | |||
| Grundy County | X | |||
| Kane County | X | |||
| Kankakee County | X | |||
| Kendall County | X | |||
| Lake County | X | |||
| McHenry County | X | |||
| AQCR 68: | ||||
| Jo Daviess County | X | |||
| AQCR 69: | ||||
| Carroll County | X | |||
| Henry County | X | |||
| Mercer County | X | |||
| Rock Island County | X | |||
| Whiteside County | X | |||
| AQCR 70: | ||||
| Madison County: | ||||
| Wood River Twp | X | |||
| Alton Twp | X | |||
| All other Madison twps | X | |||
| Bond County | X | |||
| Clinton County | X | |||
| Monroe County | X | |||
| Randolph County | X | |||
| St. Clair County | X | |||
| Washington County | X | |||
| AQCR 71: | ||||
| Bureau County: | ||||
| Shelby Twp | X | |||
| All other Bureau twps | X | |||
| La Salle County | X | |||
| Lee County | X | |||
| Marshall County | X | |||
| Putnam County | X | |||
| Stark County | X | |||
| AQCR 72: | ||||
| Massac County | X | |||
| Alexander County | X | |||
| Johnson County | X | |||
| Pope County | X | |||
| Pulaski County | X | |||
| Union County | X | |||
| AQCR 73 | ||||
| Boone County | X | |||
| De Kalb County | X | |||
| Ogle County | X | |||
| Stephenson | X | |||
| Winnebago County | X | |||
| AQCR 74: | ||||
| Clay County | X | |||
| Crawford County | X | |||
| Edwards County | X | |||
| Effingham County | X | |||
| Fayette County | X | |||
| Franklin County | X | |||
| Gallatin County | X | |||
| Hamilton County | X | |||
| Hardin County | X | |||
| Jackson County | X | |||
| Jasper County | X | |||
| Jefferson County | X | |||
| Lawrence County | X | |||
| Marion County | X | |||
| Perry County | X | |||
| Richland County | X | |||
| Saline County | X | |||
| Wabash County | X | |||
| Wayne County | X | |||
| White County | X | |||
| Williamson County | X | |||
| AQCR 75: | ||||
| Christian County: | ||||
| South Fork Twp | X | |||
| All other twps | X | |||
| Sangamon County: | ||||
| Capital Twp | X | |||
| Cooper Twp | X | |||
| Cotton Hill Twp | X | |||
| Rochester Twp | X | |||
| Woodside Twp | X | |||
| All other twps | X | |||
| Adams County | X | |||
| Brown County | X | |||
| Calhoun County | X | |||
| Cass County | X | |||
| Greene County | X | |||
| Jersey County | X | |||
| Logan County | X | |||
| Macon County | X | |||
| Nacoupin County | X | |||
| Menard County | X | |||
| Montgomery County | X | |||
| Morgan County | X | |||
| Pike County | X | |||
| Schuyler County | X | |||
| Scott County | X |
Illinois-2010 Sulfur Dioxide NAAQS
[Primary]
| Designated area1 | Designation | |
| Date2 | Type | |
| Alton Township, IL | 9/12/2016 | Nonattainment. |
| Madison County (part) | ||
| Within Alton Township: Area east of Corporal Belchik Memorial Expressway, south of East Broadway, south of Route 3, and north of Route 143 | ||
| Lemont, IL | 5/26/2020 | Attainment. |
| Cook County (part) | ||
| Lemont Township | ||
| Will County (part) | ||
| DuPage Township and Lockport Township | ||
| Pekin, IL | 5/26/2020 | Attainment. |
| Tazewell County (part) | ||
| Cincinnati Township and Pekin Township | ||
| Peoria County (part) | ||
| Hollis Township | ||
| Rest of State: | ||
| Adams County | Attainment/Unclassifiable. | |
| Alexander County | Attainment/Unclassifiable. | |
| Bond County | Attainment/Unclassifiable. | |
| Boone County | Attainment/Unclassifiable. | |
| Brown County | Attainment/Unclassifiable. | |
| Bureau County | 9/12/2016 | Attainment/Unclassifiable. |
| Calhoun County | Attainment/Unclassifiable. | |
| Carroll County | Attainment/Unclassifiable. | |
| Cass County | Attainment/Unclassifiable. | |
| Champaign County | Attainment/Unclassifiable. | |
| Christian County | Attainment/Unclassifiable. | |
| Clark County | Attainment/Unclassifiable. | |
| Clay County | Attainment/Unclassifiable. | |
| Clinton County | Attainment/Unclassifiable. | |
| Coles County | Attainment/Unclassifiable. | |
| Cook County (part) (remainder) | Attainment/Unclassifiable. | |
| Crawford County | Attainment/Unclassifiable. | |
| Cumberland County | Attainment/Unclassifiable. | |
| De Kalb County | Attainment/Unclassifiable. | |
| De Witt County | Attainment/Unclassifiable. | |
| Douglas County | Attainment/Unclassifiable. | |
| Du Page County | Attainment/Unclassifiable. | |
| Edgar County | Attainment/Unclassifiable. | |
| Edwards County | Attainment/Unclassifiable. | |
| Effingham County | Attainment/Unclassifiable. | |
| Fayette County | Attainment/Unclassifiable. | |
| Ford County | Attainment/Unclassifiable. | |
| Franklin County | Attainment/Unclassifiable. | |
| Fulton County | Attainment/Unclassifiable. | |
| Gallatin County | Attainment/Unclassifiable. | |
| Greene County | Attainment/Unclassifiable. | |
| Grundy County | Attainment/Unclassifiable. | |
| Hamilton County | Attainment/Unclassifiable. | |
| Hancock County | Attainment/Unclassifiable. | |
| Hardin County | Attainment/Unclassifiable. | |
| Henderson County | Attainment/Unclassifiable. | |
| Henry County | Attainment/Unclassifiable. | |
| Iroquois County | Attainment/Unclassifiable. | |
| Jackson County | Attainment/Unclassifiable. | |
| Jasper County | 9/12/2016 | Attainment/Unclassifiable. |
| Jefferson County | Attainment/Unclassifiable. | |
| Jersey County | Attainment/Unclassifiable. | |
| Jo Daviess County | Attainment/Unclassifiable. | |
| Johnson County | Attainment/Unclassifiable. | |
| Kane County | Attainment/Unclassifiable. | |
| Kankakee County | Attainment/Unclassifiable. | |
| Kendall County | Attainment/Unclassifiable. | |
| Knox County | Attainment/Unclassifiable. | |
| Lake County | Attainment/Unclassifiable. | |
| La Salle County | Attainment/Unclassifiable. | |
| Lawrence County | Attainment/Unclassifiable. | |
| Lee County | Attainment/Unclassifiable. | |
| Livingston County | Attainment/Unclassifiable. | |
| Logan County | Attainment/Unclassifiable. | |
| McDonough County | Attainment/Unclassifiable. | |
| McHenry County | Attainment/Unclassifiable. | |
| McLean County | Attainment/Unclassifiable. | |
| Macon County | 4/30/2021 | Attainment/Unclassifiable. |
| Macoupin County | Attainment/Unclassifiable. | |
| Madison County (part) (remainder)4 | Attainment/Unclassifiable. | |
| Marion County | Attainment/Unclassifiable. | |
| Marshall County | Attainment/Unclassifiable. | |
| Mason County | Attainment/Unclassifiable. | |
| Massac County | 9/12/2016 | Attainment/Unclassifiable. |
| Menard County | Attainment/Unclassifiable. | |
| Mercer County | Attainment/Unclassifiable. | |
| Monroe County | Attainment/Unclassifiable. | |
| Montgomery County | Attainment/Unclassifiable. | |
| Morgan County | Attainment/Unclassifiable. | |
| Moultrie County | Attainment/Unclassifiable. | |
| Ogle County | Attainment/Unclassifiable. | |
| Peoria County (part) (remainder) | Attainment/Unclassifiable. | |
| Perry County | Attainment/Unclassifiable. | |
| Piatt County | Attainment/Unclassifiable. | |
| Pike County | Attainment/Unclassifiable. | |
| Pope County | Attainment/Unclassifiable. | |
| Pulaski County | Attainment/Unclassifiable. | |
| Putnam County | 9/12/2016 | Attainment/Unclassifiable. |
| Randolph County | Attainment/Unclassifiable. | |
| Richland County | Attainment/Unclassifiable. | |
| Rock Island County | Attainment/Unclassifiable. | |
| St. Clair County | Attainment/Unclassifiable. | |
| Saline County | Attainment/Unclassifiable. | |
| Sangamon County | Attainment/Unclassifiable. | |
| Schuyler County | Attainment/Unclassifiable. | |
| Scott County | Attainment/Unclassifiable. | |
| Shelby County | Attainment/Unclassifiable. | |
| Stark County | Attainment/Unclassifiable. | |
| Stephenson County | Attainment/Unclassifiable. | |
| Tazewell County (part) (remainder) | Attainment/Unclassifiable. | |
| Union County | Attainment/Unclassifiable. | |
| Vermilion County | Attainment/Unclassifiable. | |
| Wabash County | Attainment/Unclassifiable. | |
| Warren County | Attainment/Unclassifiable. | |
| Washington County | Attainment/Unclassifiable. | |
| Wayne County | Attainment/Unclassifiable. | |
| White County | Attainment/Unclassifiable. | |
| Whiteside County | Attainment/Unclassifiable. | |
| Will County (part) (remainder) | Attainment/Unclassifiable. | |
| Williamson County | 3 10/15/2019 | Attainment/Unclassifiable. |
| Winnebago County | Attainment/Unclassifiable. | |
| Woodford County | Attainment/Unclassifiable. | |
1 Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country.
2 This date is April 9, 2018, unless otherwise noted.
3 Williamson County was initially designated on September 12, 2016. The initial designation was reconsidered and modified on October 15, 2019.
4 A portion of Madison County, specifically all of Wood River Township, and the area in Chouteau Township north of Cahokia Diversion Channel, was designated attainment/unclassifiable on 9/12/16.
Illinois-Carbon Monoxide
| Designated Area | Designation | Classification | ||
| Date1 | Type | Date1 | Type | |
| Adams County | Unclassifiable/Attainment | |||
| Alexander County | Unclassifiable/Attainment | |||
| Bond County | Unclassifiable/Attainment | |||
| Boone County | Unclassifiable/Attainment | |||
| Brown County | Unclassifiable/Attainment | |||
| Bureau County | Unclassifiable/Attainment | |||
| Calhoun County | Unclassifiable/Attainment | |||
| Carroll County | Unclassifiable/Attainment | |||
| Cass County | Unclassifiable/Attainment | |||
| Champaign County | Unclassifiable/Attainment | |||
| Christian County | Unclassifiable/Attainment | |||
| Clark County | Unclassifiable/Attainment | |||
| Clay County | Unclassifiable/Attainment | |||
| Clinton County | Unclassifiable/Attainment | |||
| Coles County | Unclassifiable/Attainment | |||
| Cook County | Unclassifiable/Attainment | |||
| Crawford County | Unclassifiable/Attainment | |||
| Cumberland County | Unclassifiable/Attainment | |||
| De Kalb County | Unclassifiable/Attainment | |||
| De Witt County | Unclassifiable/Attainment | |||
| Douglas County | Unclassifiable/Attainment | |||
| Du Page County | Unclassifiable/Attainment | |||
| Edgar County | Unclassifiable/Attainment | |||
| Edwards County | Unclassifiable/Attainment | |||
| Effingham County | Unclassifiable/Attainment | |||
| Fayette County | Unclassifiable/Attainment | |||
| Ford County | Unclassifiable/Attainment | |||
| Franklin County | Unclassifiable/Attainment | |||
| Fulton County | Unclassifiable/Attainment | |||
| Gallatin County | Unclassifiable/Attainment | |||
| Greene County | Unclassifiable/Attainment | |||
| Grundy County | Unclassifiable/Attainment | |||
| Hamilton County | Unclassifiable/Attainment | |||
| Hancock County | Unclassifiable/Attainment | |||
| Hardin County | Unclassifiable/Attainment | |||
| Henderson County | Unclassifiable/Attainment | |||
| Henry County | Unclassifiable/Attainment | |||
| Iroquois County | Unclassifiable/Attainment | |||
| Jackson County | Unclassifiable/Attainment | |||
| Jasper County | Unclassifiable/Attainment | |||
| Jefferson County | Unclassifiable/Attainment | |||
| Jersey County | Unclassifiable/Attainment | |||
| Jo Daviess County | Unclassifiable/Attainment | |||
| Johnson County | Unclassifiable/Attainment | |||
| Kane County | Unclassifiable/Attainment | |||
| Kankakee County | Unclassifiable/Attainment | |||
| Kendall County | Unclassifiable/Attainment | |||
| Knox County | Unclassifiable/Attainment | |||
| Lake County | Unclassifiable/Attainment | |||
| La Salle County | Unclassifiable/Attainment | |||
| Lawrence County | Unclassifiable/Attainment | |||
| Lee County | Unclassifiable/Attainment | |||
| Livingston County | Unclassifiable/Attainment | |||
| Logan County | Unclassifiable/Attainment | |||
| Macon County | Unclassifiable/Attainment | |||
| Macoupin County | Unclassifiable/Attainment | |||
| Madison County | Unclassifiable/Attainment | |||
| Marion County | Unclassifiable/Attainment | |||
| Marshall County | Unclassifiable/Attainment | |||
| Mason County | Unclassifiable/Attainment | |||
| Massac County | Unclassifiable/Attainment | |||
| McDonough County | Unclassifiable/Attainment | |||
| McHenry County | Unclassifiable/Attainment | |||
| McLean County | Unclassifiable/Attainment | |||
| Menard County | Unclassifiable/Attainment | |||
| Mercer County | Unclassifiable/Attainment | |||
| Monroe County | Unclassifiable/Attainment | |||
| Montgomery County | Unclassifiable/Attainment | |||
| Morgan County | Unclassifiable/Attainment | |||
| Moultrie County | Unclassifiable/Attainment | |||
| Ogle County | Unclassifiable/Attainment | |||
| Peoria County | Unclassifiable/Attainment | |||
| Perry County | Unclassifiable/Attainment | |||
| Piatt County | Unclassifiable/Attainment | |||
| Pike County | Unclassifiable/Attainment | |||
| Pope County | Unclassifiable/Attainment | |||
| Pulaski County | Unclassifiable/Attainment | |||
| Putnam County | Unclassifiable/Attainment | |||
| Randolph County | Unclassifiable/Attainment | |||
| Richland County | Unclassifiable/Attainment | |||
| Rock Island County | Unclassifiable/Attainment | |||
| St. Clair County | Unclassifiable/Attainment | |||
| Saline County | Unclassifiable/Attainment | |||
| Sangamon County | Unclassifiable/Attainment | |||
| Schuyler County | Unclassifiable/Attainment | |||
| Scott County | Unclassifiable/Attainment | |||
| Shelby County | Unclassifiable/Attainment | |||
| Stark County | Unclassifiable/Attainment | |||
| Stephenson County | Unclassifiable/Attainment | |||
| Tazewell County | Unclassifiable/Attainment | |||
| Union County | Unclassifiable/Attainment | |||
| Vermilion County | Unclassifiable/Attainment | |||
| Wabash County | Unclassifiable/Attainment | |||
| Warren County | Unclassifiable/Attainment | |||
| Washington County | Unclassifiable/Attainment | |||
| Wayne County | Unclassifiable/Attainment | |||
| White County | Unclassifiable/Attainment | |||
| Whiteside County | Unclassifiable/Attainment | |||
| Will County | Unclassifiable/Attainment | |||
| Williamson County | Unclassifiable/Attainment | |||
| Winnebago County | Unclassifiable/Attainment | |||
| Woodford County | Unclassifiable/Attainment | |||
1 This date is November 15, 1990, unless otherwise noted.
Illinois-Ozone (1-Hour Standard)3
| Designated area | Designation | Classification | ||
| Date1 | Type | Date1 | Type | |
| Chicago-Gary-Lake County Area: | ||||
| Cook County | 11/15/90 | Nonattainment | 11/15/90 | Severe-17. |
| Du Page County | 11/15/90 | Nonattainment | 11/15/90 | Severe-17. |
| Grundy County (part) | ||||
| Aux Sable Township | 11/15/90 | Nonattainment | 11/15/90 | Severe-17. |
| Goose Lake Township | 11/15/90 | Nonattainment | 11/15/90 | Severe-17. |
| Kane County | 11/15/90 | Nonattainment | 11/15/90 | Severe-17. |
| Kendall County (part) | ||||
| Oswego Township | 11/15/90 | Nonattainment | 11/15/90 | Severe-17. |
| Lake County | 11/15/90 | Nonattainment | 11/15/90 | Severe-17. |
| McHenry County | 11/15/90 | Nonattainment | 11/15/90 | Severe-17. |
| Will County | 11/15/90 | Nonattainment | 11/15/90 | Severe-17. |
| Jersey County Area: | ||||
| Jersey County | Attainment2 | |||
| St. Louis Area: | ||||
| Madison County | 5/12/03 | Attainment | ||
| Monroe County | 5/12/03 | Attainment | ||
| St. Clair County | 5/12/03 | Attainment | ||
| Adams County | Unclassifiable/Attainment | |||
| Alexander County | Unclassifiable/Attainment | |||
| Bond County | Unclassifiable/Attainment | |||
| Boone County | Unclassifiable/Attainment | |||
| Brown County | Unclassifiable/Attainment | |||
| Bureau County | Unclassifiable/Attainment | |||
| Calhoun County | Unclassifiable/Attainment | |||
| Carroll County | Unclassifiable/Attainment | |||
| Cass County | Unclassifiable/Attainment | |||
| Champaign County | Unclassifiable/Attainment | |||
| Christian County | Unclassifiable/Attainment | |||
| Clark County | Unclassifiable/Attainment | |||
| Clay County | Unclassifiable/Attainment | |||
| Clinton County | Unclassifiable/Attainment | |||
| Coles County | Unclassifiable/Attainment | |||
| Crawford County | Unclassifiable/Attainment | |||
| Cumberland County | Unclassifiable/Attainment | |||
| De Kalb County | Unclassifiable/Attainment | |||
| De Witt County | Unclassifiable/Attainment | |||
| Douglas County | Unclassifiable/Attainment | |||
| Edgar County | Unclassifiable/Attainment | |||
| Edwards County | Unclassifiable/Attainment | |||
| Effingham County | Unclassifiable/Attainment | |||
| Fayette County | Unclassifiable/Attainment | |||
| Ford County | Unclassifiable/Attainment | |||
| Franklin County | Unclassifiable/Attainment | |||
| Fulton County | Unclassifiable/Attainment | |||
| Gallatin County | Unclassifiable/Attainment | |||
| Greene County | Unclassifiable/Attainment | |||
| Grundy County (part) All townships except Aux Sable and Goose Lake | Unclassifiable/Attainment | |||
| Hamilton County | Unclassifiable/Attainment | |||
| Hancock County | Unclassifiable/Attainment | |||
| Hardin County | Unclassifiable/Attainment | |||
| Henderson County | Unclassifiable/Attainment | |||
| Henry County | Unclassifiable/Attainment | |||
| Iroquois County | Unclassifiable/Attainment | |||
| Jackson County | Unclassifiable/Attainment | |||
| Jasper County | Unclassifiable/Attainment | |||
| Jefferson County | Unclassifiable/Attainment | |||
| Jo Daviess County | Unclassifiable/Attainment | |||
| Johnson County | Unclassifiable/Attainment | |||
| Kankakee County | Unclassifiable/Attainment | |||
| Kendall County (part) All townships except Oswego | Unclassifiable/Attainment | |||
| Knox County | Unclassifiable/Attainment | |||
| La Salle County | Unclassifiable/Attainment | |||
| Lawrence County | Unclassifiable/Attainment | |||
| Lee County | Unclassifiable/Attainment | |||
| Livingston County | Unclassifiable/Attainment | |||
| Logan County | Unclassifiable/Attainment | |||
| Macon County | Unclassifiable/Attainment | |||
| Macoupin County | Unclassifiable/Attainment | |||
| Marion County | Unclassifiable/Attainment | |||
| Marshall County | Unclassifiable/Attainment | |||
| Mason County | Unclassifiable/Attainment | |||
| Massac County | Unclassifiable/Attainment | |||
| McDonough County | Unclassifiable/Attainment | |||
| McLean County | Unclassifiable/Attainment | |||
| Menard County | Unclassifiable/Attainment | |||
| Mercer County | Unclassifiable/Attainment | |||
| Montgomery County | Unclassifiable/Attainment | |||
| Morgan County | Unclassifiable/Attainment | |||
| Moultrie County | Unclassifiable/Attainment | |||
| Ogle County | Unclassifiable/Attainment | |||
| Peoria County | Unclassifiable/Attainment | |||
| Perry County | Unclassifiable/Attainment | |||
| Piatt County | Unclassifiable/Attainment | |||
| Pike County | Unclassifiable/Attainment | |||
| Pope County | Unclassifiable/Attainment | |||
| Pulaski County | Unclassifiable/Attainment | |||
| Putnam County | Unclassifiable/Attainment | |||
| Randolph County | Unclassifiable/Attainment | |||
| Richland County | Unclassifiable/Attainment | |||
| Rock Island County | Unclassifiable/Attainment | |||
| Saline County | Unclassifiable/Attainment | |||
| Sangamon County | Unclassifiable/Attainment | |||
| Schuyler County | Unclassifiable/Attainment | |||
| Scott County | Unclassifiable/Attainment | |||
| Shelby County | Unclassifiable/Attainment | |||
| Stark County | Unclassifiable/Attainment | |||
| Stephenson County | Unclassifiable/Attainment | |||
| Tazewell County | Unclassifiable/Attainment | |||
| Union County | Unclassifiable/Attainment | |||
| Vermilion County | Unclassifiable/Attainment | |||
| Wabash County | Unclassifiable/Attainment | |||
| Warren County | Unclassifiable/Attainment | |||
| Washington County | Unclassifiable/Attainment | |||
| Wayne County | Unclassifiable/Attainment | |||
| White County | Unclassifiable/Attainment | |||
| Whiteside County | Unclassifiable/Attainment | |||
| Williamson County | Unclassifiable/Attainment | |||
| Winnebago County | Unclassifiable/Attainment | |||
| Woodford County | Unclassifiable/Attainment | |||
1 This date is October 18, 2000, unless otherwise noted.
2 April 13, 1995.
3 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Illinois. The Jersey Co. and St. Louis areas are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.
Illinois-PM-10
| Designated area | Designation | Classification | ||
| Date | Type | Date | Type | |
| Cook County | ||||
| a. Lyons Township | 11/21/05 | Attainment | ||
| b. The area bounded on the north by 79th Street, on the west by Interstate 57 between Sibley Boulevard and Interstate 94 and by Interstate 94 between Interstate 57 and 79th Street, on the south by Sibley Boulevard, and on the east by the Illinois/Indiana State line | 11/21/05 | Attainment | ||
| LaSalle County | 10/7/96 | Attainment | ||
| Oglesby including the following Townships, ranges, and sections: T32N, R1E, S1; T32N, R2E, S6; T33N, R1E, S24; T33N, R1E, S25; T33N, R2E, S30; T33N, R2E, S31; and T33N, R1E, S36 | ||||
| Madison County | ||||
| Granite City Township and Nameoki Township | 5/11/98 | Attainment | ||
| Rest of State | 11/15/90 | Unclassifiable | ||
Illinois-1997 Annual PM2.5 NAAQS
[Primary and Secondary]
| Designated area | Designationa | Classification | ||
| Date1 | Type | Date2 | Type | |
| Chicago-Gary-Lake County, IL-IN: | 10/2/13 | Attainment. | ||
| Cook County | ||||
| DuPage County | ||||
| Grundy County (part): | ||||
| Goose Lake and Aux Sable Townships | ||||
| Kane County | ||||
| Kendall County (part): | ||||
| Oswego Township | ||||
| Lake County | ||||
| McHenry County | ||||
| Will County | ||||
| St. Louis, MO-IL: | ||||
| Madison County | 5/28/2019 | Attainment | ||
| Monroe County | 5/28/2019 | Attainment | ||
| Randolph County (part): Baldwin Village | 5/28/2019 | Attainment | ||
| St. Clair County | 5/28/2019 | Attainment | ||
| Rest of State: | ||||
| Adams County | Unclassifiable/Attainment. | |||
| Alexander County | Unclassifiable/Attainment. | |||
| Bond County | Unclassifiable/Attainment. | |||
| Boone County | Unclassifiable/Attainment. | |||
| Brown County | Unclassifiable/Attainment. | |||
| Bureau County | Unclassifiable/Attainment. | |||
| Calhoun County | Unclassifiable/Attainment. | |||
| Carroll County | Unclassifiable/Attainment. | |||
| Cass County | Unclassifiable/Attainment. | |||
| Champaign County | Unclassifiable/Attainment. | |||
| Christian County | Unclassifiable/Attainment. | |||
| Clark County | Unclassifiable/Attainment. | |||
| Clay County | Unclassifiable/Attainment. | |||
| Clinton County | Unclassifiable/Attainment. | |||
| Coles County | Unclassifiable/Attainment. | |||
| Crawford County | Unclassifiable/Attainment. | |||
| Cumberland County | Unclassifiable/Attainment. | |||
| DeKalb County | Unclassifiable/Attainment. | |||
| De Witt County | Unclassifiable/Attainment. | |||
| Douglas County | Unclassifiable/Attainment. | |||
| Edgar County | Unclassifiable/Attainment. | |||
| Edwards County | Unclassifiable/Attainment. | |||
| Effingham County | Unclassifiable/Attainment. | |||
| Fayette County | Unclassifiable/Attainment. | |||
| Ford County | Unclassifiable/Attainment. | |||
| Franklin County | Unclassifiable/Attainment. | |||
| Fulton County | Unclassifiable/Attainment. | |||
| Gallatin County | Unclassifiable/Attainment. | |||
| Greene County | Unclassifiable/Attainment. | |||
| Grundy County (remainder) | Unclassifiable/Attainment. | |||
| Hamilton County | Unclassifiable/Attainment. | |||
| Hancock County | Unclassifiable/Attainment. | |||
| Hardin County | Unclassifiable/Attainment. | |||
| Henderson County | Unclassifiable/Attainment. | |||
| Henry County | Unclassifiable/Attainment. | |||
| Iroquois County | Unclassifiable/Attainment. | |||
| Jackson County | Unclassifiable/Attainment. | |||
| Jasper County | Unclassifiable/Attainment. | |||
| Jefferson County | Unclassifiable/Attainment. | |||
| Jersey County | Unclassifiable/Attainment. | |||
| Jo Daviess County | Unclassifiable/Attainment. | |||
| Johnson County | Unclassifiable/Attainment. | |||
| Kankakee County | Unclassifiable/Attainment. | |||
| Kendall County (remainder) | Unclassifiable/Attainment. | |||
| Knox County | Unclassifiable/Attainment. | |||
| La Salle County | Unclassifiable/Attainment. | |||
| Lawrence County | Unclassifiable/Attainment. | |||
| Lee County | Unclassifiable/Attainment. | |||
| Livingston County | Unclassifiable/Attainment. | |||
| Logan County | Unclassifiable/Attainment. | |||
| McDonough County | Unclassifiable/Attainment. | |||
| McLean County | Unclassifiable/Attainment. | |||
| Macon County | Unclassifiable/Attainment. | |||
| Macoupin County | Unclassifiable/Attainment. | |||
| Marion County | Unclassifiable/Attainment. | |||
| Marshall County | Unclassifiable/Attainment. | |||
| Mason County | Unclassifiable/Attainment. | |||
| Massac County | Unclassifiable/Attainment. | |||
| Menard County | Unclassifiable/Attainment. | |||
| Mercer County | Unclassifiable/Attainment. | |||
| Montgomery County | Unclassifiable/Attainment. | |||
| Morgan County | Unclassifiable/Attainment. | |||
| Moultrie County | Unclassifiable/Attainment. | |||
| Ogle County | Unclassifiable/Attainment. | |||
| Peoria County | Unclassifiable/Attainment. | |||
| Perry County | Unclassifiable/Attainment. | |||
| Piatt County | Unclassifiable/Attainment. | |||
| Pike County | Unclassifiable/Attainment. | |||
| Pope County | Unclassifiable/Attainment. | |||
| Pulaski County | Unclassifiable/Attainment. | |||
| Putnam County | Unclassifiable/Attainment. | |||
| Randolph County (remainder) | Unclassifiable/Attainment. | |||
| Richland County | Unclassifiable/Attainment. | |||
| Rock Island County | Unclassifiable/Attainment. | |||
| Saline County | Unclassifiable/Attainment. | |||
| Sangamon County | Unclassifiable/Attainment. | |||
| Schuyler County | Unclassifiable/Attainment. | |||
| Scott County | Unclassifiable/Attainment. | |||
| Shelby County | Unclassifiable/Attainment. | |||
| Stark County | Unclassifiable/Attainment. | |||
| Stephenson County | Unclassifiable/Attainment. | |||
| Tazewell County | Unclassifiable/Attainment. | |||
| Union County | Unclassifiable/Attainment. | |||
| Vermilion County | Unclassifiable/Attainment. | |||
| Wabash County | Unclassifiable/Attainment. | |||
| Warren County | Unclassifiable/Attainment. | |||
| Washington County | Unclassifiable/Attainment. | |||
| Wayne County | Unclassifiable/Attainment. | |||
| White County | Unclassifiable/Attainment. | |||
| Whiteside County | Unclassifiable/Attainment. | |||
| Williamson County | Unclassifiable/Attainment. | |||
| Winnebago County | Unclassifiable/Attainment. | |||
| Woodford County | Unclassifiable/Attainment. | |||
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
Illinois-2012 Annual PM2.5 NAAQS
[Primary]
| Designated area1 | Designation | Classification | ||
| Date2 | Type | Date2 | Type | |
| Chicago, IL-IN: | ||||
| Cook County | Unclassifiable/Attainment. | |||
| DuPage County | Unclassifiable/Attainment. | |||
| Grundy County (part) | Unclassifiable/Attainment. | |||
| Goose Lake and Aux Sable Townships | Unclassifiable/Attainment. | |||
| Kane County | Unclassifiable/Attainment. | |||
| Kendall County (part) | Unclassifiable/Attainment. | |||
| Oswego Township | Unclassifiable/Attainment. | |||
| Lake County | Unclassifiable/Attainment. | |||
| McHenry County | Unclassifiable/Attainment. | |||
| Will County | Unclassifiable/Attainment. | |||
| Davenport-Moline-Rock Island, IL: | ||||
| Rock Island County | Unclassifiable/Attainment. | |||
| Henry County | Unclassifiable/Attainment. | |||
| Mercer County | Unclassifiable/Attainment. | |||
| St. Louis, MO-IL: | ||||
| Madison County | Unclassifiable/Attainment. | |||
| Monroe County | Unclassifiable/Attainment. | |||
| Randolph County (part) | Unclassifiable/Attainment. | |||
| Baldwin Village | Unclassifiable/Attainment. | |||
| St. Clair County | Unclassifiable/Attainment. | |||
| Rest of State: | ||||
| Adams County | Unclassifiable/Attainment. | |||
| Alexander County | Unclassifiable/Attainment. | |||
| Bond County | Unclassifiable/Attainment. | |||
| Boone County | Unclassifiable/Attainment. | |||
| Brown County | Unclassifiable/Attainment. | |||
| Bureau County | Unclassifiable/Attainment. | |||
| Calhoun County | Unclassifiable/Attainment. | |||
| Carroll County | Unclassifiable/Attainment. | |||
| Cass County | Unclassifiable/Attainment. | |||
| Champaign County | Unclassifiable/Attainment. | |||
| Christian County | Unclassifiable/Attainment. | |||
| Clark County | Unclassifiable/Attainment. | |||
| Clay County | Unclassifiable/Attainment. | |||
| Clinton County | Unclassifiable/Attainment. | |||
| Coles County | Unclassifiable/Attainment. | |||
| Crawford County | Unclassifiable/Attainment. | |||
| Cumberland County | Unclassifiable/Attainment. | |||
| DeKalb County | Unclassifiable/Attainment. | |||
| De Witt County | Unclassifiable/Attainment. | |||
| Douglas County | Unclassifiable/Attainment. | |||
| Edgar County | Unclassifiable/Attainment. | |||
| Edwards County | Unclassifiable/Attainment. | |||
| Effingham County | Unclassifiable/Attainment. | |||
| Fayette County | Unclassifiable/Attainment. | |||
| Ford County | Unclassifiable/Attainment. | |||
| Franklin County | Unclassifiable/Attainment. | |||
| Fulton County | Unclassifiable/Attainment. | |||
| Gallatin County | Unclassifiable/Attainment. | |||
| Greene County | Unclassifiable/Attainment. | |||
| Grundy County (remainder) | Unclassifiable/Attainment. | |||
| Hamilton County | Unclassifiable/Attainment. | |||
| Hancock County | Unclassifiable/Attainment. | |||
| Hardin County | Unclassifiable/Attainment. | |||
| Henderson County | Unclassifiable/Attainment. | |||
| Iroquois County | Unclassifiable/Attainment. | |||
| Jackson County | Unclassifiable/Attainment. | |||
| Jasper County | Unclassifiable/Attainment. | |||
| Jefferson County | Unclassifiable/Attainment. | |||
| Jersey County | Unclassifiable/Attainment. | |||
| Jo Daviess County | Unclassifiable/Attainment. | |||
| Johnson County | Unclassifiable/Attainment. | |||
| Kankakee County | Unclassifiable/Attainment. | |||
| Kendall County (remainder) | Unclassifiable/Attainment. | |||
| Knox County | Unclassifiable/Attainment. | |||
| La Salle County | Unclassifiable/Attainment. | |||
| Lawrence County | Unclassifiable/Attainment. | |||
| Lee County | Unclassifiable/Attainment. | |||
| Livingston County | Unclassifiable/Attainment. | |||
| Logan County | Unclassifiable/Attainment. | |||
| McDonough County | Unclassifiable/Attainment. | |||
| McLean County | Unclassifiable/Attainment. | |||
| Macon County | Unclassifiable/Attainment. | |||
| Macoupin County | Unclassifiable/Attainment. | |||
| Marion County | Unclassifiable/Attainment. | |||
| Marshall County | Unclassifiable/Attainment. | |||
| Mason County | Unclassifiable/Attainment. | |||
| Massac County | Unclassifiable/Attainment. | |||
| Menard County | Unclassifiable/Attainment. | |||
| Montgomery County | Unclassifiable/Attainment. | |||
| Morgan County | Unclassifiable/Attainment. | |||
| Moultrie County | Unclassifiable/Attainment. | |||
| Ogle County | Unclassifiable/Attainment. | |||
| Peoria County | Unclassifiable/Attainment. | |||
| Perry County | Unclassifiable/Attainment. | |||
| Piatt County | Unclassifiable/Attainment. | |||
| Pike County | Unclassifiable/Attainment. | |||
| Pope County | Unclassifiable/Attainment. | |||
| Pulaski County | Unclassifiable/Attainment. | |||
| Putnam County | Unclassifiable/Attainment. | |||
| Randolph County (remainder) | Unclassifiable/Attainment. | |||
| Richland County | Unclassifiable/Attainment. | |||
| Saline County | Unclassifiable/Attainment. | |||
| Sangamon County | Unclassifiable/Attainment. | |||
| Schuyler County | Unclassifiable/Attainment. | |||
| Scott County | Unclassifiable/Attainment. | |||
| Shelby County | Unclassifiable/Attainment. | |||
| Stark County | Unclassifiable/Attainment. | |||
| Stephenson County | Unclassifiable/Attainment. | |||
| Tazewell County | Unclassifiable/Attainment. | |||
| Union County | Unclassifiable/Attainment. | |||
| Vermilion County | Unclassifiable/Attainment. | |||
| Wabash County | Unclassifiable/Attainment. | |||
| Warren County | Unclassifiable/Attainment. | |||
| Washington County | Unclassifiable/Attainment. | |||
| Wayne County | Unclassifiable/Attainment. | |||
| White County | Unclassifiable/Attainment. | |||
| Whiteside County | Unclassifiable/Attainment. | |||
| Williamson County | Unclassifiable/Attainment. | |||
| Winnebago County | Unclassifiable/Attainment. | |||
| Woodford County | Unclassifiable/Attainment. | |||
1 Includes Indian Country located in each county or area, except as otherwise specified.
2 This date is January 28, 2019, unless otherwise noted.
Illinois-1997 24-Hour PM2.5 NAAQS
[Primary and Secondary]
| Designated area | Designationa | Classification | ||
| Date1 | Type | Date | Type | |
| Statewide: | ||||
| Adams County | Unclassifiable/Attainment. | |||
| Alexander County | Unclassifiable/Attainment. | |||
| Bond County | Unclassifiable/Attainment. | |||
| Boone County | Unclassifiable/Attainment. | |||
| Brown County | Unclassifiable/Attainment. | |||
| Bureau County | Unclassifiable/Attainment. | |||
| Calhoun County | Unclassifiable/Attainment. | |||
| Carroll County | Unclassifiable/Attainment. | |||
| Cass County | Unclassifiable/Attainment. | |||
| Champaign County | Unclassifiable/Attainment. | |||
| Christian County | Unclassifiable/Attainment. | |||
| Clark County | Unclassifiable/Attainment. | |||
| Clay County | Unclassifiable/Attainment. | |||
| Clinton County | Unclassifiable/Attainment. | |||
| Coles County | Unclassifiable/Attainment. | |||
| Cook County | Unclassifiable/Attainment. | |||
| Crawford County | Unclassifiable/Attainment. | |||
| Cumberland County | Unclassifiable/Attainment. | |||
| DeKalb County | Unclassifiable/Attainment. | |||
| De Witt County | Unclassifiable/Attainment. | |||
| Douglas County | Unclassifiable/Attainment. | |||
| DuPage County | Unclassifiable/Attainment. | |||
| Edgar County | Unclassifiable/Attainment. | |||
| Edwards County | Unclassifiable/Attainment. | |||
| Effingham County | Unclassifiable/Attainment. | |||
| Fayette County | Unclassifiable/Attainment. | |||
| Ford County | Unclassifiable/Attainment. | |||
| Franklin County | Unclassifiable/Attainment. | |||
| Fulton County | Unclassifiable/Attainment. | |||
| Gallatin County | Unclassifiable/Attainment. | |||
| Greene County | Unclassifiable/Attainment. | |||
| Grundy County | Unclassifiable/Attainment. | |||
| Hamilton County | Unclassifiable/Attainment. | |||
| Hancock County | Unclassifiable/Attainment. | |||
| Hardin County | Unclassifiable/Attainment. | |||
| Henderson County | Unclassifiable/Attainment. | |||
| Henry County | Unclassifiable/Attainment. | |||
| Iroquois County | Unclassifiable/Attainment. | |||
| Jackson County | Unclassifiable/Attainment. | |||
| Jasper County | Unclassifiable/Attainment. | |||
| Jefferson County | Unclassifiable/Attainment. | |||
| Jersey County | Unclassifiable/Attainment. | |||
| Jo Daviess County | Unclassifiable/Attainment. | |||
| Johnson County | Unclassifiable/Attainment. | |||
| Kane County | Unclassifiable/Attainment. | |||
| Kankakee County | Unclassifiable/Attainment. | |||
| Kendall County | Unclassifiable/Attainment. | |||
| Knox County | Unclassifiable/Attainment. | |||
| La Salle County | Unclassifiable/Attainment. | |||
| Lake County | Unclassifiable/Attainment. | |||
| Lawrence County | Unclassifiable/Attainment. | |||
| Lee County | Unclassifiable/Attainment. | |||
| Livingston County | Unclassifiable/Attainment. | |||
| Logan County | Unclassifiable/Attainment. | |||
| McDonough County | Unclassifiable/Attainment. | |||
| McHenry County | Unclassifiable/Attainment. | |||
| McLean County | Unclassifiable/Attainment. | |||
| Macon County | Unclassifiable/Attainment. | |||
| Macoupin County | Unclassifiable/Attainment. | |||
| Madison County | Unclassifiable/Attainment. | |||
| Marion County | Unclassifiable/Attainment. | |||
| Marshall County | Unclassifiable/Attainment. | |||
| Mason County | Unclassifiable/Attainment. | |||
| Massac County | Unclassifiable/Attainment. | |||
| Menard County | Unclassifiable/Attainment. | |||
| Mercer County | Unclassifiable/Attainment. | |||
| Monroe County | Unclassifiable/Attainment. | |||
| Montgomery County | Unclassifiable/Attainment. | |||
| Morgan County | Unclassifiable/Attainment. | |||
| Moultrie County | Unclassifiable/Attainment. | |||
| Ogle County | Unclassifiable/Attainment. | |||
| Peoria County | Unclassifiable/Attainment. | |||
| Perry County | Unclassifiable/Attainment. | |||
| Piatt County | Unclassifiable/Attainment. | |||
| Pike County | Unclassifiable/Attainment. | |||
| Pope County | Unclassifiable/Attainment. | |||
| Pulaski County | Unclassifiable/Attainment. | |||
| Putnam County | Unclassifiable/Attainment. | |||
| Randolph County | Unclassifiable/Attainment. | |||
| Richland County | Unclassifiable/Attainment. | |||
| Rock Island County | Unclassifiable/Attainment. | |||
| St. Clair County | Unclassifiable/Attainment. | |||
| Saline County | Unclassifiable/Attainment. | |||
| Sangamon County | Unclassifiable/Attainment. | |||
| Schuyler County | Unclassifiable/Attainment. | |||
| Scott County | Unclassifiable/Attainment. | |||
| Shelby County | Unclassifiable/Attainment. | |||
| Stark County | Unclassifiable/Attainment. | |||
| Stephenson County | Unclassifiable/Attainment. | |||
| Tazewell County | Unclassifiable/Attainment. | |||
| Union County | Unclassifiable/Attainment. | |||
| Vermilion County | Unclassifiable/Attainment. | |||
| Wabash County | Unclassifiable/Attainment. | |||
| Warren County | Unclassifiable/Attainment. | |||
| Washington County | Unclassifiable/Attainment. | |||
| Wayne County | Unclassifiable/Attainment. | |||
| White County | Unclassifiable/Attainment. | |||
| Whiteside County | Unclassifiable/Attainment. | |||
| Will County | Unclassifiable/Attainment. | |||
| Williamson County | Unclassifiable/Attainment. | |||
| Winnebago County | Unclassifiable/Attainment. | |||
| Woodford County | Unclassifiable/Attainment. | |||
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Illinois-2006 24-Hour PM2.5 NAAQS
[Primary and Secondary]
| Designated area | Designationa | Classification | ||
| Date1 | Type | Date | Type | |
| Statewide: | ||||
| Adams County | Unclassifiable/Attainment | |||
| Alexander County | Unclassifiable/Attainment | |||
| Bond County | Unclassifiable/Attainment | |||
| Boone County | Unclassifiable/Attainment | |||
| Brown County | Unclassifiable/Attainment | |||
| Bureau County | Unclassifiable/Attainment | |||
| Calhoun County | Unclassifiable/Attainment | |||
| Carroll County | Unclassifiable/Attainment | |||
| Cass County | Unclassifiable/Attainment | |||
| Champaign County | Unclassifiable/Attainment | |||
| Christian County | Unclassifiable/Attainment | |||
| Clark County | Unclassifiable/Attainment | |||
| Clay County | Unclassifiable/Attainment | |||
| Clinton County | Unclassifiable/Attainment | |||
| Coles County | Unclassifiable/Attainment | |||
| Cook County | Unclassifiable/Attainment | |||
| Crawford County | Unclassifiable/Attainment | |||
| Cumberland County | Unclassifiable/Attainment | |||
| DeKalb County | Unclassifiable/Attainment | |||
| De Witt County | Unclassifiable/Attainment | |||
| Douglas County | Unclassifiable/Attainment | |||
| DuPage County | Unclassifiable/Attainment | |||
| Edgar County | Unclassifiable/Attainment | |||
| Edwards County | Unclassifiable/Attainment | |||
| Effingham County | Unclassifiable/Attainment | |||
| Fayette County | Unclassifiable/Attainment | |||
| Ford County | Unclassifiable/Attainment | |||
| Franklin County | Unclassifiable/Attainment | |||
| Fulton County | Unclassifiable/Attainment | |||
| Gallatin County | Unclassifiable/Attainment | |||
| Greene County | Unclassifiable/Attainment | |||
| Grundy County | Unclassifiable/Attainment | |||
| Hamilton County | Unclassifiable/Attainment | |||
| Hancock County | Unclassifiable/Attainment | |||
| Hardin County | Unclassifiable/Attainment | |||
| Henderson County | Unclassifiable/Attainment | |||
| Henry County | Unclassifiable/Attainment | |||
| Iroquois County | Unclassifiable/Attainment | |||
| Jackson County | Unclassifiable/Attainment | |||
| Jasper County | Unclassifiable/Attainment | |||
| Jefferson County | Unclassifiable/Attainment | |||
| Jersey County | Unclassifiable/Attainment | |||
| Jo Daviess County | Unclassifiable/Attainment | |||
| Johnson County | Unclassifiable/Attainment | |||
| Kane County | Unclassifiable/Attainment | |||
| Kankakee County | Unclassifiable/Attainment | |||
| Kendall County | Unclassifiable/Attainment | |||
| Knox County | Unclassifiable/Attainment | |||
| La Salle County | Unclassifiable/Attainment | |||
| Lake County | Unclassifiable/Attainment | |||
| Lawrence County | Unclassifiable/Attainment | |||
| Lee County | Unclassifiable/Attainment | |||
| Livingston County | Unclassifiable/Attainment | |||
| Logan County | Unclassifiable/Attainment | |||
| McDonough County | Unclassifiable/Attainment | |||
| McHenry County | Unclassifiable/Attainment | |||
| McLean County | Unclassifiable/Attainment | |||
| Macon County | Unclassifiable/Attainment | |||
| Macoupin County | Unclassifiable/Attainment | |||
| Madison County | Unclassifiable/Attainment | |||
| Marion County | Unclassifiable/Attainment | |||
| Marshall County | Unclassifiable/Attainment | |||
| Mason County | Unclassifiable/Attainment | |||
| Massac County | Unclassifiable/Attainment | |||
| Menard County | Unclassifiable/Attainment | |||
| Mercer County | Unclassifiable/Attainment | |||
| Monroe County | Unclassifiable/Attainment | |||
| Montgomery County | Unclassifiable/Attainment | |||
| Morgan County | Unclassifiable/Attainment | |||
| Moultrie County | Unclassifiable/Attainment | |||
| Ogle County | Unclassifiable/Attainment | |||
| Peoria County | Unclassifiable/Attainment | |||
| Perry County | Unclassifiable/Attainment | |||
| Piatt County | Unclassifiable/Attainment | |||
| Pike County | Unclassifiable/Attainment | |||
| Pope County | Unclassifiable/Attainment | |||
| Pulaski County | Unclassifiable/Attainment | |||
| Putnam County | Unclassifiable/Attainment | |||
| Randolph County | Unclassifiable/Attainment | |||
| Richland County | Unclassifiable/Attainment | |||
| Rock Island County | Unclassifiable/Attainment | |||
| St. Clair County | Unclassifiable/Attainment | |||
| Saline County | Unclassifiable/Attainment | |||
| Sangamon County | Unclassifiable/Attainment | |||
| Schuyler County | Unclassifiable/Attainment | |||
| Scott County | Unclassifiable/Attainment | |||
| Shelby County | Unclassifiable/Attainment | |||
| Stark County | Unclassifiable/Attainment | |||
| Stephenson County | Unclassifiable/Attainment | |||
| Tazewell County | Unclassifiable/Attainment | |||
| Union County | Unclassifiable/Attainment | |||
| Vermilion County | Unclassifiable/Attainment | |||
| Wabash County | Unclassifiable/Attainment | |||
| Warren County | Unclassifiable/Attainment | |||
| Washington County | Unclassifiable/Attainment | |||
| Wayne County | Unclassifiable/Attainment | |||
| White County | Unclassifiable/Attainment | |||
| Whiteside County | Unclassifiable/Attainment | |||
| Will County | Unclassifiable/Attainment | |||
| Williamson County | Unclassifiable/Attainment | |||
| Winnebago County | Unclassifiable/Attainment | |||
| Woodford County | Unclassifiable/Attainment | |||
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Illinois-NO2 (1971 Annual Standard)
| Designated area | Does not meet primary standards | Cannot be classified or better than national standards |
| AQCR 65: | ||
| Fulton County | X | |
| Hancock County | X | |
| Henderson County | X | |
| Knox County | X | |
| McDonough County | X | |
| Mason County | X | |
| Peoria County | X | |
| Tazewell County | X | |
| Warren County | X | |
| Woodford County | X | |
| Lee County | X | |
| AQCR 66: | ||
| Champaign County | X | |
| Clark County | X | |
| Coles County | X | |
| Cumberland County | X | |
| De Witt County | X | |
| Douglas County | X | |
| Edgar County | X | |
| Ford County | X | |
| Iroquois County | X | |
| Livingston County | X | |
| McLean County | X | |
| Moultrie County | X | |
| Piatt County | X | |
| Shelby County | X | |
| Vermilion County | X | |
| AQCR 67: | ||
| Cook County | X | |
| Du Page County | X | |
| Grundy County | X | |
| Kane County | X | |
| Kankakee County | X | |
| Kendall County | X | |
| Lake County | X | |
| McHenry County | X | |
| Will County | X | |
| AQCR 68: | ||
| Jo Daviess County | X | |
| AQCR 69: | ||
| Carroll County | X | |
| Henry County | X | |
| Mercer County | X | |
| Rock Island County | X | |
| Whiteside County | X | |
| AQCR 70: | ||
| Bond County | X | |
| Clinton County | X | |
| Madison County | X | |
| Monroe County | X | |
| Randolph County | X | |
| St. Clair County | X | |
| Washington County | X | |
| AQCR 71: | ||
| Bureau County | X | |
| La Salle County | X | |
| Lee County | X | |
| Marshall County | X | |
| Putnam County | X | |
| Stark County | X | |
| AQCR 72: | ||
| Alexander County | X | |
| Johnson County | X | |
| Massac County | X | |
| Pope County | X | |
| Pulaski County | X | |
| Union County | X | |
| AQCR 73: | ||
| Boone County | X | |
| De Kalb County | X | |
| Ogle County | X | |
| Stephenson County | X | |
| Winnebago County | X | |
| AQCR 74: | ||
| Clay County | X | |
| Crawford County | X | |
| Edwards County | X | |
| Effingham County | X | |
| Fayette County | X | |
| Franklin County | X | |
| Gallatin County | X | |
| Hamilton County | X | |
| Hardin County | X | |
| Jackson County | X | |
| Jasper County | X | |
| Jefferson County | X | |
| Lawrence County | X | |
| Marion County | X | |
| Perry County | X | |
| Richland County | X | |
| Saline County | X | |
| Wabash County | X | |
| Wayne County | X | |
| White County | X | |
| Williamson County | X | |
| AQCR 75: | ||
| Adams County | X | |
| Brown County | X | |
| Calhoun County | X | |
| Cass County | X | |
| Christian County | X | |
| Greene County | X | |
| Jersey County | X | |
| Logan County | X | |
| Macon County | X | |
| Macoupin County | X | |
| Menard County | X | |
| Montgomery County | X | |
| Morgan County | X | |
| Pike County | X | |
| Sangamon County | X | |
| Schuyler County | X | |
| Scott County | X |
Illinois-NO2 (2010 1-Hour Standard)
| Designated area | Designationa | |
| Date1 | Type | |
| Adams County | Unclassifiable/Attainment. | |
| Alexander County | Unclassifiable/Attainment. | |
| Bond County | Unclassifiable/Attainment. | |
| Boone County | Unclassifiable/Attainment. | |
| Brown County | Unclassifiable/Attainment. | |
| Bureau County | Unclassifiable/Attainment. | |
| Calhoun County | Unclassifiable/Attainment. | |
| Carroll County | Unclassifiable/Attainment. | |
| Cass County | Unclassifiable/Attainment. | |
| Champaign County | Unclassifiable/Attainment. | |
| Christian County | Unclassifiable/Attainment. | |
| Clark County | Unclassifiable/Attainment. | |
| Clay County | Unclassifiable/Attainment. | |
| Clinton County | Unclassifiable/Attainment. | |
| Coles County | Unclassifiable/Attainment. | |
| Cook County | Unclassifiable/Attainment. | |
| Crawford County | Unclassifiable/Attainment. | |
| Cumberland County | Unclassifiable/Attainment. | |
| DeKalb County | Unclassifiable/Attainment. | |
| De Witt County | Unclassifiable/Attainment. | |
| Douglas County | Unclassifiable/Attainment. | |
| DuPage County | Unclassifiable/Attainment. | |
| Edgar County | Unclassifiable/Attainment. | |
| Edwards County | Unclassifiable/Attainment. | |
| Effingham County | Unclassifiable/Attainment. | |
| Fayette County | Unclassifiable/Attainment. | |
| Ford County | Unclassifiable/Attainment. | |
| Franklin County | Unclassifiable/Attainment. | |
| Fulton County | Unclassifiable/Attainment. | |
| Gallatin County | Unclassifiable/Attainment. | |
| Greene County | Unclassifiable/Attainment. | |
| Grundy County | Unclassifiable/Attainment. | |
| Hamilton County | Unclassifiable/Attainment. | |
| Hancock County | Unclassifiable/Attainment. | |
| Hardin County | Unclassifiable/Attainment. | |
| Henderson County | Unclassifiable/Attainment. | |
| Henry County | Unclassifiable/Attainment. | |
| Iroquois County | Unclassifiable/Attainment. | |
| Jackson County | Unclassifiable/Attainment. | |
| Jasper County | Unclassifiable/Attainment. | |
| Jefferson County | Unclassifiable/Attainment. | |
| Jersey County | Unclassifiable/Attainment. | |
| Jo Daviess County | Unclassifiable/Attainment. | |
| Johnson County | Unclassifiable/Attainment. | |
| Kane County | Unclassifiable/Attainment. | |
| Kankakee County | Unclassifiable/Attainment. | |
| Kendall County | Unclassifiable/Attainment. | |
| Knox County | Unclassifiable/Attainment. | |
| La Salle County | Unclassifiable/Attainment. | |
| Lake County | Unclassifiable/Attainment. | |
| Lawrence County | Unclassifiable/Attainment. | |
| Lee County | Unclassifiable/Attainment. | |
| Livingston County | Unclassifiable/Attainment. | |
| Logan County | Unclassifiable/Attainment. | |
| Madison County | Unclassifiable/Attainment. | |
| McDonough County | Unclassifiable/Attainment. | |
| McLean County | Unclassifiable/Attainment. | |
| Macon County | Unclassifiable/Attainment. | |
| Macoupin County | Unclassifiable/Attainment. | |
| Marion County | Unclassifiable/Attainment. | |
| Marshall County | Unclassifiable/Attainment. | |
| Mason County | Unclassifiable/Attainment. | |
| Massac County | Unclassifiable/Attainment. | |
| McHenry County | Unclassifiable/Attainment. | |
| Menard County | Unclassifiable/Attainment. | |
| Mercer County | Unclassifiable/Attainment. | |
| Monroe County | Unclassifiable/Attainment. | |
| Montgomery County | Unclassifiable/Attainment. | |
| Morgan County | Unclassifiable/Attainment. | |
| Moultrie County | Unclassifiable/Attainment. | |
| Ogle County | Unclassifiable/Attainment. | |
| Peoria County | Unclassifiable/Attainment. | |
| Perry County | Unclassifiable/Attainment. | |
| Piatt County | Unclassifiable/Attainment. | |
| Pike County | Unclassifiable/Attainment. | |
| Pope County | Unclassifiable/Attainment. | |
| Pulaski County | Unclassifiable/Attainment. | |
| Putnam County | Unclassifiable/Attainment. | |
| Randolph County | Unclassifiable/Attainment. | |
| Richland County | Unclassifiable/Attainment. | |
| Rock Island County | Unclassifiable/Attainment. | |
| St. Clair County | Unclassifiable/Attainment. | |
| Saline County | Unclassifiable/Attainment. | |
| Sangamon County | Unclassifiable/Attainment. | |
| Schuyler County | Unclassifiable/Attainment. | |
| Scott County | Unclassifiable/Attainment. | |
| Shelby County | Unclassifiable/Attainment. | |
| Stark County | Unclassifiable/Attainment. | |
| Stephenson County | Unclassifiable/Attainment. | |
| Tazewell County | Unclassifiable/Attainment. | |
| Union County | Unclassifiable/Attainment. | |
| Vermilion County | Unclassifiable/Attainment. | |
| Wabash County | Unclassifiable/Attainment. | |
| Warren County | Unclassifiable/Attainment. | |
| Washington County | Unclassifiable/Attainment. | |
| Wayne County | Unclassifiable/Attainment. | |
| White County | Unclassifiable/Attainment. | |
| Whiteside County | Unclassifiable/Attainment. | |
| Will County | Unclassifiable/Attainment. | |
| Williamson County | Unclassifiable/Attainment. | |
| Winnebago County | Unclassifiable/Attainment. | |
| Woodford County | Unclassifiable/Attainment. | |
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Illinois-1997 8-Hour Ozone NAAQS
[Primary and Secondary]
| Designated area | Designationa | Category/classification | ||
| Date1 | Type | Date1 | Type | |
| Chicago-Gary-Lake County, IL-IN: | ||||
| Cook County | 8/13/2012 | |||
| DuPage County | Attainment. | |||
| Grundy County (part) | ||||
| Aux Sable Township | ||||
| Goose Lake Township | ||||
| Kane County | ||||
| Kendall County (part) | ||||
| Oswego Township | ||||
| Lake County | ||||
| McHenry County | ||||
| Will County | ||||
| St. Louis, MO-IL: | ||||
| Jersey County | 6/12/2012 | Attainment | ||
| Madison County | 6/12/2012 | Attainment | ||
| Monroe County | 6/12/2012 | Attainment | ||
| St. Clair County | 6/12/2012 | Attainment | ||
| Rest of State | ||||
| Adams County | Unclassifiable/Attainment | |||
| Alexander County | Unclassifiable/Attainment | |||
| Bond County | Unclassifiable/Attainment | |||
| Boone County | Unclassifiable/Attainment | |||
| Brown County | Unclassifiable/Attainment | |||
| Bureau County | Unclassifiable/Attainment | |||
| Calhoun County | Unclassifiable/Attainment | |||
| Carroll County | Unclassifiable/Attainment | |||
| Cass County | Unclassifiable/Attainment | |||
| Champaign County | Unclassifiable/Attainment | |||
| Christian County | Unclassifiable/Attainment | |||
| Clark County | Unclassifiable/Attainment | |||
| Clay County | Unclassifiable/Attainment | |||
| Clinton County | Unclassifiable/Attainment | |||
| Coles County | Unclassifiable/Attainment | |||
| Crawford County | Unclassifiable/Attainment | |||
| Cumberland County | Unclassifiable/Attainment | |||
| De Witt County | Unclassifiable/Attainment | |||
| DeKalb County | Unclassifiable/Attainment | |||
| Douglas County | Unclassifiable/Attainment | |||
| Edgar County | Unclassifiable/Attainment | |||
| Edwards County | Unclassifiable/Attainment | |||
| Effingham County | Unclassifiable/Attainment | |||
| Fayette County | Unclassifiable/Attainment | |||
| Ford County | Unclassifiable/Attainment | |||
| Franklin County | Unclassifiable/Attainment | |||
| Fulton County | Unclassifiable/Attainment | |||
| Gallatin County | Unclassifiable/Attainment | |||
| Greene County | Unclassifiable/Attainment | |||
| Grundy County (part) | Unclassifiable/Attainment | |||
| All townships except Aux Sable and Goose Lake. | ||||
| Hamilton County | Unclassifiable/Attainment | |||
| Hancock County | Unclassifiable/Attainment | |||
| Hardin County | Unclassifiable/Attainment | |||
| Henderson County | Unclassifiable/Attainment | |||
| Henry County | Unclassifiable/Attainment | |||
| Iroquois County | Unclassifiable/Attainment | |||
| Jackson County | Unclassifiable/Attainment | |||
| Jasper County | Unclassifiable/Attainment | |||
| Jefferson County | Unclassifiable/Attainment | |||
| Jo Daviess County | Unclassifiable/Attainment | |||
| Johnson County | Unclassifiable/Attainment | |||
| Kankakee County | Unclassifiable/Attainment | |||
| Kendall County (part) | Unclassifiable/Attainment | |||
| All townships except Oswego | ||||
| Knox County | Unclassifiable/Attainment | |||
| La Salle County | Unclassifiable/Attainment | |||
| Lawrence County | Unclassifiable/Attainment | |||
| Lee County | Unclassifiable/Attainment | |||
| Livingston County | Unclassifiable/Attainment | |||
| Logan County | Unclassifiable/Attainment | |||
| Macon County | Unclassifiable/Attainment | |||
| Macoupin County | Unclassifiable/Attainment | |||
| Marion County | Unclassifiable/Attainment | |||
| Marshall County | Unclassifiable/Attainment | |||
| Mason County | Unclassifiable/Attainment | |||
| Massac County | Unclassifiable/Attainment | |||
| McDonough County | Unclassifiable/Attainment | |||
| McLean County | Unclassifiable/Attainment | |||
| Menard County | Unclassifiable/Attainment | |||
| Mercer County | Unclassifiable/Attainment | |||
| Montgomery County | Unclassifiable/Attainment | |||
| Morgan County | Unclassifiable/Attainment | |||
| Moultrie County | Unclassifiable/Attainment | |||
| Ogle County | Unclassifiable/Attainment | |||
| Peoria County | Unclassifiable/Attainment | |||
| Perry County | Unclassifiable/Attainment | |||
| Piatt County | Unclassifiable/Attainment | |||
| Pike County | Unclassifiable/Attainment | |||
| Pope County | Unclassifiable/Attainment | |||
| Pulaski County | Unclassifiable/Attainment | |||
| Putnam County | Unclassifiable/Attainment | |||
| Randolph County | Unclassifiable/Attainment | |||
| Richland County | Unclassifiable/Attainment | |||
| Rock Island County | Unclassifiable/Attainment | |||
| Saline County | Unclassifiable/Attainment | |||
| Sangamon County | Unclassifiable/Attainment | |||
| Schuyler County | Unclassifiable/Attainment | |||
| Scott County | Unclassifiable/Attainment | |||
| Shelby County | Unclassifiable/Attainment | |||
| Stark County | Unclassifiable/Attainment | |||
| Stephenson County | Unclassifiable/Attainment | |||
| Tazewell County | Unclassifiable/Attainment | |||
| Union County | Unclassifiable/Attainment | |||
| Vermilion County | Unclassifiable/Attainment | |||
| Wabash County | Unclassifiable/Attainment | |||
| Warren County | Unclassifiable/Attainment | |||
| Washington County | Unclassifiable/Attainment | |||
| Wayne County | Unclassifiable/Attainment | |||
| White County | Unclassifiable/Attainment | |||
| Whiteside County | Unclassifiable/Attainment | |||
| Williamson County | Unclassifiable/Attainment | |||
| Winnebago County | Unclassifiable/Attainment | |||
| Woodford County | Unclassifiable/Attainment | |||
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Illinois-2008 8-Hour Ozone NAAQS
[Primary and Secondary]
| Designated area | Designation | Classification | ||
| Date1 | Type | Date1 | Type | |
| Chicago-Naperville, IL-IN-WI2 | May 20, 2022. | Attainment | Serious. | |
| Cook County. | ||||
| DuPage County. | ||||
| Grundy County (part): | ||||
| Aux Sable Township. | ||||
| Goose Lake Township. | ||||
| Kane County. | ||||
| Kendall County (part): | ||||
| Oswego Township. | ||||
| Lake County. | ||||
| McHenry County. | ||||
| Will County. | ||||
| St. Louis-St. Charles-Farmington, MO-IL:2 | ||||
| Madison County, Monroe County, St. Clair County | 3/1/2018 | Attainment | ||
| Adams County3 | Unclassifiable/Attainment | |||
| Alexander County3 | Unclassifiable/Attainment | |||
| Bond County3 | Unclassifiable/Attainment | |||
| Boone County3 | Unclassifiable/Attainment | |||
| Brown County3 | Unclassifiable/Attainment | |||
| Bureau County3 | Unclassifiable/Attainment | |||
| Calhoun County3 | Unclassifiable/Attainment | |||
| Carroll County3 | Unclassifiable/Attainment | |||
| Cass County3 | Unclassifiable/Attainment | |||
| Champaign County3 | Unclassifiable/Attainment | |||
| Christian County3 | Unclassifiable/Attainment | |||
| Clark County3 | Unclassifiable/Attainment | |||
| Clay County3 | Unclassifiable/Attainment | |||
| Clinton County3 | Unclassifiable/Attainment | |||
| Coles County3 | Unclassifiable/Attainment | |||
| Crawford County3 | Unclassifiable/Attainment | |||
| Cumberland County3 | Unclassifiable/Attainment | |||
| DeKalb County3 | Unclassifiable/Attainment | |||
| De Witt County3 | Unclassifiable/Attainment | |||
| Douglas County3 | Unclassifiable/Attainment | |||
| Edgar County3 | Unclassifiable/Attainment | |||
| Edwards County3 | Unclassifiable/Attainment | |||
| Effingham County3 | Unclassifiable/Attainment | |||
| Fayette County3 | Unclassifiable/Attainment | |||
| Ford County3 | Unclassifiable/Attainment | |||
| Franklin County3 | Unclassifiable/Attainment | |||
| Fulton County3 | Unclassifiable/Attainment | |||
| Gallatin County3 | Unclassifiable/Attainment | |||
| Greene County3 | Unclassifiable/Attainment | |||
| Grundy County (remainder)3 | Unclassifiable/Attainment | |||
| Hamilton County3 | Unclassifiable/Attainment | |||
| Hancock County3 | Unclassifiable/Attainment | |||
| Hardin County3 | Unclassifiable/Attainment | |||
| Henderson County3 | Unclassifiable/Attainment | |||
| Henry County3 | Unclassifiable/Attainment | |||
| Iroquois County3 | Unclassifiable/Attainment | |||
| Jackson County3 | Unclassifiable/Attainment | |||
| Jasper County3 | Unclassifiable/Attainment | |||
| Jefferson County3 | Unclassifiable/Attainment | |||
| Jersey County3 | Unclassifiable/Attainment | |||
| Jo Daviess County3 | Unclassifiable/Attainment | |||
| Johnson County3 | Unclassifiable/Attainment | |||
| Kankakee County3 | Unclassifiable/Attainment | |||
| Kendall County (remainder) | Unclassifiable/Attainment | |||
| Knox County3 | Unclassifiable/Attainment | |||
| La Salle County3 | Unclassifiable/Attainment | |||
| Lawrence County3 | Unclassifiable/Attainment | |||
| Lee County3 | Unclassifiable/Attainment | |||
| Livingston County3 | Unclassifiable/Attainment | |||
| Logan County3 | Unclassifiable/Attainment | |||
| McDonough County3 | Unclassifiable/Attainment | |||
| McLean County3 | Unclassifiable/Attainment | |||
| Macon County3 | Unclassifiable/Attainment | |||
| Macoupin County3 | Unclassifiable/Attainment | |||
| Marion County3 | Unclassifiable/Attainment | |||
| Marshall County3 | Unclassifiable/Attainment | |||
| Mason County3 | Unclassifiable/Attainment | |||
| Massac County3 | Unclassifiable/Attainment | |||
| Menard County3 | Unclassifiable/Attainment | |||
| Mercer County3 | Unclassifiable/Attainment | |||
| Montgomery County3 | Unclassifiable/Attainment | |||
| Morgan County3 | Unclassifiable/Attainment | |||
| Moultrie County3 | Unclassifiable/Attainment | |||
| Ogle County3 | Unclassifiable/Attainment | |||
| Peoria County3 | Unclassifiable/Attainment | |||
| Perry County3 | Unclassifiable/Attainment | |||
| Piatt County3 | Unclassifiable/Attainment | |||
| Pike County3 | Unclassifiable/Attainment | |||
| Pope County3 | Unclassifiable/Attainment | |||
| Pulaski County3 | Unclassifiable/Attainment | |||
| Putnam County3 | Unclassifiable/Attainment | |||
| Randolph County3 | Unclassifiable/Attainment | |||
| Richland County3 | Unclassifiable/Attainment | |||
| Rock Island County3 | Unclassifiable/Attainment | |||
| Saline County3 | Unclassifiable/Attainment | |||
| Sangamon County3 | Unclassifiable/Attainment | |||
| Schuyler County3 | Unclassifiable/Attainment | |||
| Scott County3 | Unclassifiable/Attainment | |||
| Shelby County3 | Unclassifiable/Attainment | |||
| Stark County3 | Unclassifiable/Attainment | |||
| Stephenson County3 | Unclassifiable/Attainment | |||
| Tazewell County3 | Unclassifiable/Attainment | |||
| Union County3 | Unclassifiable/Attainment | |||
| Vermilion County3 | Unclassifiable/Attainment | |||
| Wabash County3 | Unclassifiable/Attainment | |||
| Warren County3 | Unclassifiable/Attainment | |||
| Washington County3 | Unclassifiable/Attainment | |||
| Wayne County3 | Unclassifiable/Attainment | |||
| White County3 | Unclassifiable/Attainment | |||
| Whiteside County3 | Unclassifiable/Attainment | |||
| Williamson County3 | Unclassifiable/Attainment | |||
| Winnebago County3 | Unclassifiable/Attainment | |||
| Woodford County3 | Unclassifiable/Attainment | |||
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes any Indian country in each county or area, unless otherwise specified.
4 Attainment date is extended to July 20, 2016.
Illinois-2015 8-Hour Ozone NAAQS
[Primary and Secondary]
| Designated area1 | Designation | Classification | ||
| Date2 | Type | Date2 | Type | |
| Chicago, IL-IN-WI | Nonattainment | 11/7/22 | Moderate. | |
| Cook County. | ||||
| DuPage County. | ||||
| Grundy County (part). | ||||
| Aux Sable Township and Goose Lake Township: | ||||
| Kane County. | ||||
| Kendall County (part). | ||||
| Oswego Township: | ||||
| Lake County. | ||||
| McHenry County | July 14, 2021.3 | |||
| Will County. | ||||
| St. Louis, MO-IL: | ||||
| Madison County. | ||||
| Monroe County | July 14, 2021.3 | |||
| St. Clair County. | ||||
| Adams County | 1/16/18 | Attainment/Unclassifiable | ||
| Alexander County | 1/16/18 | Attainment/Unclassifiable | ||
| Bond County | Attainment/Unclassifiable | |||
| Boone County | 1/16/18 | Attainment/Unclassifiable | ||
| Brown County | 1/16/18 | Attainment/Unclassifiable | ||
| Bureau County | Attainment/Unclassifiable | |||
| Calhoun County | Attainment/Unclassifiable | |||
| Carroll County | 1/16/18 | Attainment/Unclassifiable | ||
| Cass County | 1/16/18 | Attainment/Unclassifiable | ||
| Champaign County | 1/16/18 | Attainment/Unclassifiable | ||
| Christian County | 1/16/18 | Attainment/Unclassifiable | ||
| Clark County | 1/16/18 | Attainment/Unclassifiable | ||
| Clay County | 1/16/18 | Attainment/Unclassifiable | ||
| Clinton County | Attainment/Unclassifiable | |||
| Coles County | 1/16/18 | Attainment/Unclassifiable | ||
| Crawford County | 1/16/18 | Attainment/Unclassifiable | ||
| Cumberland County | 1/16/18 | Attainment/Unclassifiable | ||
| De Kalb County | Attainment/Unclassifiable | |||
| De Witt County | 1/16/18 | Attainment/Unclassifiable | ||
| Douglas County | 1/16/18 | Attainment/Unclassifiable | ||
| Edgar County | 1/16/18 | Attainment/Unclassifiable | ||
| Edwards County | 1/16/18 | Attainment/Unclassifiable | ||
| Effingham County | 1/16/18 | Attainment/Unclassifiable | ||
| Fayette County | 1/16/18 | Attainment/Unclassifiable | ||
| Ford County | 1/16/18 | Attainment/Unclassifiable | ||
| Franklin County | 1/16/18 | Attainment/Unclassifiable | ||
| Fulton County | 1/16/18 | Attainment/Unclassifiable | ||
| Gallatin County | 1/16/18 | Attainment/Unclassifiable | ||
| Greene County | 1/16/18 | Attainment/Unclassifiable | ||
| Grundy County (part) remainder | Attainment/Unclassifiable | |||
| Hamilton County | 1/16/18 | Attainment/Unclassifiable | ||
| Hancock County | 1/16/18 | Attainment/Unclassifiable | ||
| Hardin County | 1/16/18 | Attainment/Unclassifiable | ||
| Henderson County | 1/16/18 | Attainment/Unclassifiable | ||
| Henry County | 1/16/18 | Attainment/Unclassifiable | ||
| Iroquois County | 1/16/18 | Attainment/Unclassifiable | ||
| Jackson County | 1/16/18 | Attainment/Unclassifiable | ||
| Jasper County | 1/16/18 | Attainment/Unclassifiable | ||
| Jefferson County | 1/16/18 | Attainment/Unclassifiable | ||
| Jersey County | Attainment/Unclassifiable | |||
| Jo Daviess County | 1/16/18 | Attainment/Unclassifiable | ||
| Johnson County | 1/16/18 | Attainment/Unclassifiable | ||
| Kankakee County | Attainment/Unclassifiable | |||
| Kendall County (part) remainder | Attainment/Unclassifiable | |||
| Knox County | 1/16/18 | Attainment/Unclassifiable | ||
| La Salle County | Attainment/Unclassifiable | |||
| Lawrence County | 1/16/18 | Attainment/Unclassifiable | ||
| Lee County | 1/16/18 | Attainment/Unclassifiable | ||
| Livingston County | 1/16/18 | Attainment/Unclassifiable | ||
| Logan County | 1/16/18 | Attainment/Unclassifiable | ||
| Macon County | 1/16/18 | Attainment/Unclassifiable | ||
| Macoupin County | Attainment/Unclassifiable | |||
| Marion County | Attainment/Unclassifiable | |||
| Marshall County | 1/16/18 | Attainment/Unclassifiable | ||
| Mason County | 1/16/18 | Attainment/Unclassifiable | ||
| Massac County | 1/16/18 | Attainment/Unclassifiable | ||
| McDonough County | 1/16/18 | Attainment/Unclassifiable | ||
| McLean County | 1/16/18 | Attainment/Unclassifiable | ||
| Menard County | 1/16/18 | Attainment/Unclassifiable | ||
| Mercer County | 1/16/18 | Attainment/Unclassifiable | ||
| Montgomery County | 1/16/18 | Attainment/Unclassifiable | ||
| Morgan County | 1/16/18 | Attainment/Unclassifiable | ||
| Moultrie County | 1/16/18 | Attainment/Unclassifiable | ||
| Ogle County | 1/16/18 | Attainment/Unclassifiable | ||
| Peoria County | 1/16/18 | Attainment/Unclassifiable | ||
| Perry County | 1/16/18 | Attainment/Unclassifiable | ||
| Piatt County | 1/16/18 | Attainment/Unclassifiable | ||
| Pike County | 1/16/18 | Attainment/Unclassifiable | ||
| Pope County | 1/16/18 | Attainment/Unclassifiable | ||
| Pulaski County | 1/16/18 | Attainment/Unclassifiable | ||
| Putnam County | Attainment/Unclassifiable | |||
| Randolph County | 1/16/18 | Attainment/Unclassifiable | ||
| Richland County | 1/16/18 | Attainment/Unclassifiable | ||
| Rock Island County | 1/16/18 | Attainment/Unclassifiable | ||
| Saline County | 1/16/18 | Attainment/Unclassifiable | ||
| Sangamon County | 1/16/18 | Attainment/Unclassifiable | ||
| Schuyler County | 1/16/18 | Attainment/Unclassifiable | ||
| Scott County | 1/16/18 | Attainment/Unclassifiable | ||
| Shelby County | 1/16/18 | Attainment/Unclassifiable | ||
| Stark County | 1/16/18 | Attainment/Unclassifiable | ||
| Stephenson County | 1/16/18 | Attainment/Unclassifiable | ||
| Tazewell County | 1/16/18 | Attainment/Unclassifiable | ||
| Union County | 1/16/18 | Attainment/Unclassifiable | ||
| Vermilion County | 1/16/18 | Attainment/Unclassifiable | ||
| Wabash County | 1/16/18 | Attainment/Unclassifiable | ||
| Warren County | 1/16/18 | Attainment/Unclassifiable | ||
| Washington County | 1/16/18 | Attainment/Unclassifiable | ||
| Wayne County | 1/16/18 | Attainment/Unclassifiable | ||
| White County | 1/16/18 | Attainment/Unclassifiable | ||
| Whiteside County | 1/16/18 | Attainment/Unclassifiable | ||
| Williamson County | 1/16/18 | Attainment/Unclassifiable | ||
| Winnebago County | 1/16/18 | Attainment/Unclassifiable | ||
| Woodford County | 1/16/18 | Attainment/Unclassifiable | ||
1 Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country.
2 This date is August 3, 2018, unless otherwise noted.
3 EPA revised the nonattainment boundary in response to a court decision, which did not vacate any designations for the 2015 ozone NAAQS, but which remanded the designation for the identified county. Because this additional area is part of a previously designated nonattainment area, the implementation dates for the overall nonattainment area (e.g., the August 3, 2021 attainment date) remain unchanged regardless of this later designation date.
Illinois-2008 Lead NAAQS
| Designated area | Designation for the 2008 NAAQSa | |
| Date1 | Type | |
| Chicago, IL: | ||
| Cook County (part) | 3/28/18 | Attainment. |
| Area bounded by Damen Ave. on the west, Roosevelt Rd. on the north, the Dan Ryan Expressway on the east, and the Stevenson Expressway on the south | ||
| Granite City, IL: | ||
| Madison County (part) | 3/28/18 | Attainment. |
| Area is bounded by Granite City Township and Venice Township | ||
| Rest of State | Unclassifiable/Attainment. | |
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
40 C.F.R. §81.314
1. For FEDERAL REGISTER citations affecting § 81.314 , see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.
2. At 80 FR 2233, Jan. 15, 2015, § 81.314 was amended by adding a table entitled "Illinois-2012 Annual PM2.5 NAAQS (Primary)" following the table "Illinois-1997 Annual PM2.5 NAAQS [Primary and secondary]"; however, the table appearing in the text was entitled "Illinois-2012 24-Hour PM2.5 NAAQS (Primary)".