Iowa - TSP
| Designated area | Does not meet primary standards | Does not meet secondary standards | Cannot be classified | Better than national standards |
|---|---|---|---|---|
| Central portion of Waterloo | X | |||
| Cedar Falls Township | X | |||
| East Waterloo Township | X | |||
| Remainder of Black Hawk County | X | |||
| Mason City - A portion of Cerro Gordo County contained entirely within sections 27, 28, 29, 32, 33, 34 and 35 of T97N R20W and sections 2, 3, 4 and 5 of T96N R20W | X | |||
| Mason City - two separate portions of Cerro Gordo County contained entirely within sections 13, 24 and 25 of T97N R21W; sections 18, 19, 20, 21, 30, 31 and 35 of T97N R20W; and sections 1, 2, 3, 4, 5, 8, 9, 10, 11, 12, 15, 16 and 17 of T96N R20W | X | |||
| Falls Township | X | |||
| Lake Township | X | |||
| Lincoln Township | X | |||
| Remainder of Cerro Gordo County | X | |||
| An area around downtown Clinton | X | |||
| Comanche Township | X | |||
| Remainder of Clinton County | X | |||
| Burlington Township | X | |||
| Remainder of Des Moines County | X | |||
| Iowa City Township | X | |||
| Remainder of Johnson County | X | |||
| An area in and near Keokuk | X | |||
| Jackson Township | X | |||
| Jefferson Township | X | |||
| Madison Township | X | |||
| Remainder of Lee County | X | |||
| Cedar Rapids - a portion of Linn County contained entirely within T 82 N., R 7 W.; and T 83 N., R 7 W | X | |||
| Bertram Township | X | |||
| Clinton Township | X | |||
| College Township | X | |||
| Fairfax Township | X | |||
| Marion Township | X | |||
| Monroe Township | X | |||
| Putnam Township | X | |||
| Remainder of Linn County | X | |||
| The central portion of Marshalltown | X | |||
| Remainder of Marshall County | X | |||
| The central and southern portions of Muscatine | X | |||
| Fruitland Township | X | |||
| Sweetland Township | X | |||
| Montpelier Township | X | |||
| Remainder of Muscatine County | X | |||
| An area of central Des Moines east of U.S. Highway 65 & 69 (E. 14th Street) | X | |||
| Portions of Polk County contained entirely within T 78 N. R 23 W.; T 78 N. R 24 W.; T 78 N. R 25 W.; T 80 R 24 W.; T 79 N. R 23 W.; T 79 N. R 24 W.; and T 79 R 25 W | X | |||
| Clay Township | X | |||
| Douglas Township | X | |||
| Jefferson Township | X | |||
| Remainder of Polk County | X | |||
| The western portion of Council Bluffs and Carter Lake | X | |||
| Lake Township | X | |||
| Lewis Township | X | |||
| Remainder of Pottawatomie County | X | |||
| Portions of Buffalo, Davenport, Bettendorf and Riverdale | X | |||
| Remainder of Scott County | X | |||
| Center Township | X | |||
| Remainder of Wapello County | X | |||
| The central portion Ft. Dodge | X | |||
| Otho Township | X | |||
| Remainder of Webster County | X | |||
| The central and southern portions of Sioux City | X | |||
| Liberty Township | X | |||
| Woodbury Township | X | |||
| Remainder of Woodbury County | X | |||
| Remainder of State | X |
Iowa - 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 |
|---|---|---|---|---|
| Entire state | X |
Iowa - 2010 Sulfur Dioxide NAAQS
[Primary]
| Designated area1 | Designation | |
|---|---|---|
| Date2 | Type | |
| Muscatine, IA | 10/4/13 | Nonattainment. |
| Muscatine County (part) | ||
| Sections 1-3, 10-15, 22-27, 34-36 of T77N, R3W (Lake Township) | ||
| Sections 1-3, 10-15, 22-27, 34-36 of T76N, R3W (Seventy-six Township) | ||
| T77N, R2W (Bloomington Township) | ||
| T76N, R2W (Fruitland Township) | ||
| All sections except 1, 12, 13, 24, 25, 36 of T77N, R1W (Sweetland Township) | ||
| Linn County, IA | Unclassifiable. | |
| Linn County | ||
| Woodbury County, IA | 9/12/16 | Unclassifiable. |
| Woodbury County | ||
| Des Moines County, IA | 9/12/16 | Attainment/Unclassifiable. |
| Des Moines County | ||
| Louisa County, IA | Attainment/Unclassifiable. | |
| Louisa County | ||
| Pottawattamie County, IA | Attainment/Unclassifiable. | |
| Pottawattamie County | ||
| Wapello County, IA | 9/12/16 | Attainment/Unclassifiable. |
| Wapello County | ||
| Statewide: | Attainment/Unclassifiable. | |
| Adair County | ||
| Adams County | ||
| Allamakee County | ||
| Appanoose County | ||
| Audubon County | ||
| Benton County | ||
| Black Hawk County | ||
| Boone County | ||
| Bremer County | ||
| Buchanan County | ||
| Buena Vista County | ||
| Butler County | ||
| Calhoun County | ||
| Carroll County | ||
| Cass County | ||
| Cedar County | ||
| Cerro Gordo County | ||
| Cherokee County | ||
| Chickasaw County | ||
| Clarke County | ||
| Clay County | ||
| Clayton County | ||
| Clinton County | ||
| Crawford County | ||
| Dallas County | ||
| Davis County | ||
| Decatur County | ||
| Delaware County | ||
| Dickinson County | ||
| Dubuque County | ||
| Emmet County | ||
| Fayette County | ||
| Floyd County | ||
| Franklin County | ||
| Fremont County | ||
| Greene County | ||
| Grundy County | ||
| Guthrie County | ||
| Hamilton County | ||
| Hancock County | ||
| Hardin County | ||
| Harrison County | ||
| Henry County | ||
| Howard County | ||
| Humboldt County | ||
| Ida County | ||
| Iowa County | ||
| Jackson County | ||
| Jasper County | ||
| Jefferson County | ||
| Johnson County | ||
| Jones County | ||
| Keokuk County | ||
| Kossuth County | ||
| Lee County | ||
| Lucas County | ||
| Lyon County | ||
| Madison County | ||
| Mahaska County | ||
| Marion County | ||
| Marshall County | ||
| Mills County | ||
| Mitchell County | ||
| Monona County | ||
| Monroe County | ||
| Montgomery County | ||
| Muscatine County (portion of Muscatine County not designated Nonattainment on 10/4/13) | ||
| O'Brien County | ||
| Osceola County | ||
| Page County | ||
| Palo Alto County | ||
| Plymouth County | ||
| Pocahontas County | ||
| Polk County | ||
| Poweshiek County | ||
| Ringgold County | ||
| Sac County | ||
| Scott County | ||
| Shelby County | ||
| Sioux County | ||
| Story County | ||
| Tama County | ||
| Taylor County | ||
| Union County | ||
| Van Buren County | ||
| Warren County | ||
| Washington County | ||
| Wayne County | ||
| Webster County | ||
| Winnebago County | ||
| Winneshiek County | ||
| Worth County | ||
| Wright County | ||
Iowa - Carbon Monoxide
| Designated Area | Designation | Classification | ||
|---|---|---|---|---|
| Date1 | Type | Date1 | Type | |
| Statewide | Unclassifiable/Attainment | |||
| Adair County | ||||
| Adams County | ||||
| Allamakee County | ||||
| Appanoose County | ||||
| Audubon County | ||||
| Benton County | ||||
| Black Hawk County | ||||
| Boone County | ||||
| Bremer County | ||||
| Buchanan County | ||||
| Buena Vista County | ||||
| Butler County | ||||
| Calhoun County | ||||
| Carroll County | ||||
| Cass County | ||||
| Cedar County | ||||
| Cerro Gordo County | ||||
| Cherokee County | ||||
| Chickasaw County | ||||
| Clarke County | ||||
| Clay County | ||||
| Clayton County | ||||
| Clinton County | ||||
| Crawford County | ||||
| Dallas County | ||||
| Davis County | ||||
| Decatur County | ||||
| Delaware County | ||||
| Des Moines County | ||||
| Dickinson County | ||||
| Dubuque County | ||||
| Emmet County | ||||
| Fayette County | ||||
| Floyd County | ||||
| Franklin County | ||||
| Fremont County | ||||
| Greene County | ||||
| Grundy County | ||||
| Guthrie County | ||||
| Hamilton County | ||||
| Hancock County | ||||
| Hardin County | ||||
| Harrison County | ||||
| Henry County | ||||
| Howard County | ||||
| Humboldt County | ||||
| Ida County | ||||
| Iowa County | ||||
| Jackson County | ||||
| Jasper County | ||||
| Jefferson County | ||||
| Johnson County | ||||
| Jones County | ||||
| Keokuk County | ||||
| Kossuth County | ||||
| Lee County | ||||
| Linn County | ||||
| Louisa County | ||||
| Lucas County | ||||
| Lyon County | ||||
| Madison County | ||||
| Mahaska County | ||||
| Marion County | ||||
| Marshall County | ||||
| Mills County | ||||
| Mitchell County | ||||
| Monona County | ||||
| Monroe County | ||||
| Montgomery County | ||||
| Muscatine County | ||||
| O'Brien County | ||||
| Osceola County | ||||
| Page County | ||||
| Palo Alto County | ||||
| Plymouth County | ||||
| Pocahontas County | ||||
| Polk County | ||||
| Pottawattamie County | ||||
| Poweshiek County | ||||
| Ringgold County | ||||
| Sac County | ||||
| Scott County | ||||
| Shelby County | ||||
| Sioux County | ||||
| Story County | ||||
| Tama County | ||||
| Taylor County | ||||
| Union County | ||||
| Van Buren County | ||||
| Wapello County | ||||
| Warren County | ||||
| Washington County | ||||
| Wayne County | ||||
| Webster County | ||||
| Winnebago County | ||||
| Winneshiek County | ||||
| Woodbury County | ||||
| Worth County | ||||
| Wright County | ||||
Iowa - Ozone (1-Hour Standard)2
| Designated area | Designation | Classification | ||
|---|---|---|---|---|
| Date1 | Type | Date1 | Type | |
| Statewide | Unclassifiable/Attainment | |||
| Adair County | ||||
| Adams County | ||||
| Allamakee County | ||||
| Appanoose County | ||||
| Audubon County | ||||
| Benton County | ||||
| Black Hawk County | ||||
| Boone County | ||||
| Bremer County | ||||
| Buchanan County | ||||
| Buena Vista County | ||||
| Butler County | ||||
| Calhoun County | ||||
| Carroll County | ||||
| Cass County | ||||
| Cedar County | ||||
| Cerro Gordo County | ||||
| Cherokee County | ||||
| Chickasaw County | ||||
| Clarke County | ||||
| Clay County | ||||
| Clayton County | ||||
| Clinton County | ||||
| Crawford County | ||||
| Dallas County | ||||
| Davis County | ||||
| Decatur County | ||||
| Delaware County | ||||
| Des Moines County | ||||
| Dickinson County | ||||
| Dubuque County | ||||
| Emmet County | ||||
| Fayette County | ||||
| Floyd County | ||||
| Franklin County | ||||
| Fremont County | ||||
| Greene County | ||||
| Grundy County | ||||
| Guthrie County | ||||
| Hamilton County | ||||
| Hancock County | ||||
| Hardin County | ||||
| Harrison County | ||||
| Henry County | ||||
| Howard County | ||||
| Humboldt County | ||||
| Ida County | ||||
| Iowa County | ||||
| Jackson County | ||||
| Jasper County | ||||
| Jefferson County | ||||
| Johnson County | ||||
| Jones County | ||||
| Keokuk County | ||||
| Kossuth County | ||||
| Lee County | ||||
| Linn County | ||||
| Louisa County | ||||
| Lucas County | ||||
| Lyon County | ||||
| Madison County | ||||
| Mahaska County | ||||
| Marion County | ||||
| Marshall County | ||||
| Mills County | ||||
| Mitchell County | ||||
| Monona County | ||||
| Monroe County | ||||
| Montgomery County | ||||
| Muscatine County | ||||
| O'Brien County | ||||
| Osceola County | ||||
| Page County | ||||
| Palo Alto County | ||||
| Plymouth County | ||||
| Pocahontas County | ||||
| Polk County | ||||
| Pottawattamie County | ||||
| Poweshiek County | ||||
| Ringgold County | ||||
| Sac County | ||||
| Scott County | ||||
| Shelby County | ||||
| Sioux County | ||||
| Story County | ||||
| Tama County | ||||
| Taylor County | ||||
| Union County | ||||
| Van Buren County | ||||
| Wapello County | ||||
| Warren County | ||||
| Washington County | ||||
| Wayne County | ||||
| Webster County | ||||
| Winnebago County | ||||
| Winneshiek County | ||||
| Woodbury County | ||||
| Worth County | ||||
| Wright County | ||||
Iowa - 1997 Annual PM2.5 NAAQS
[Primary and Secondary]
| Designated area | Designationa | Classification | ||
|---|---|---|---|---|
| Date1 | Type | Date | Type | |
| Statewide: | ||||
| Adair County | Unclassifiable/Attainment. | |||
| Adams County | Unclassifiable/Attainment. | |||
| Allamakee County | Unclassifiable/Attainment. | |||
| Appanoose County | Unclassifiable/Attainment. | |||
| Audubon County | Unclassifiable/Attainment. | |||
| Benton County | Unclassifiable/Attainment. | |||
| Black Hawk County | Unclassifiable/Attainment. | |||
| Boone County | Unclassifiable/Attainment. | |||
| Bremer County | Unclassifiable/Attainment. | |||
| Buchanan County | Unclassifiable/Attainment. | |||
| Buena Vista County | Unclassifiable/Attainment. | |||
| Butler County | Unclassifiable/Attainment. | |||
| Calhoun County | Unclassifiable/Attainment. | |||
| Carroll County | Unclassifiable/Attainment. | |||
| Cass County | Unclassifiable/Attainment. | |||
| Cedar County | Unclassifiable/Attainment. | |||
| Cerro Gordo County | Unclassifiable/Attainment. | |||
| Cherokee County | Unclassifiable/Attainment. | |||
| Chickasaw County | Unclassifiable/Attainment. | |||
| Clarke County | Unclassifiable/Attainment. | |||
| Clay County | Unclassifiable/Attainment. | |||
| Clayton County | Unclassifiable/Attainment. | |||
| Clinton County | Unclassifiable/Attainment. | |||
| Crawford County | Unclassifiable/Attainment. | |||
| Dallas County | Unclassifiable/Attainment. | |||
| Davis County | Unclassifiable/Attainment. | |||
| Decatur County | Unclassifiable/Attainment. | |||
| Delaware County | Unclassifiable/Attainment. | |||
| Des Moines County | Unclassifiable/Attainment. | |||
| Dickinson County | Unclassifiable/Attainment. | |||
| Dubuque County | Unclassifiable/Attainment. | |||
| Emmet County | Unclassifiable/Attainment. | |||
| Fayette County | Unclassifiable/Attainment. | |||
| Floyd County | Unclassifiable/Attainment. | |||
| Franklin County | Unclassifiable/Attainment. | |||
| Fremont County | Unclassifiable/Attainment. | |||
| Greene County | Unclassifiable/Attainment. | |||
| Grundy County | Unclassifiable/Attainment. | |||
| Guthrie County | Unclassifiable/Attainment. | |||
| Hamilton County | Unclassifiable/Attainment. | |||
| Hancock County | Unclassifiable/Attainment. | |||
| Hardin County | Unclassifiable/Attainment. | |||
| Harrison County | Unclassifiable/Attainment. | |||
| Henry County | Unclassifiable/Attainment. | |||
| Howard County | Unclassifiable/Attainment. | |||
| Humboldt County | Unclassifiable/Attainment. | |||
| Ida County | Unclassifiable/Attainment. | |||
| Iowa County | Unclassifiable/Attainment. | |||
| Jackson County | Unclassifiable/Attainment. | |||
| Jasper County | Unclassifiable/Attainment. | |||
| Jefferson County | Unclassifiable/Attainment. | |||
| Johnson County | Unclassifiable/Attainment. | |||
| Jones County | Unclassifiable/Attainment. | |||
| Keokuk County | Unclassifiable/Attainment. | |||
| Kossuth County | Unclassifiable/Attainment. | |||
| Lee County | Unclassifiable/Attainment. | |||
| Linn County | Unclassifiable/Attainment. | |||
| Louisa County | Unclassifiable/Attainment. | |||
| Lucas County | Unclassifiable/Attainment. | |||
| Lyon County | Unclassifiable/Attainment. | |||
| Madison County | Unclassifiable/Attainment. | |||
| Mahaska County | Unclassifiable/Attainment. | |||
| Marion County | Unclassifiable/Attainment. | |||
| Marshall County | Unclassifiable/Attainment. | |||
| Mills County | Unclassifiable/Attainment. | |||
| Mitchell County | Unclassifiable/Attainment. | |||
| Monona County | Unclassifiable/Attainment. | |||
| Monroe County | Unclassifiable/Attainment. | |||
| Montgomery County | Unclassifiable/Attainment. | |||
| Muscatine County | Unclassifiable/Attainment. | |||
| O'Brien County | Unclassifiable/Attainment. | |||
| Osceola County | Unclassifiable/Attainment. | |||
| Page County | Unclassifiable/Attainment. | |||
| Palo Alto County | Unclassifiable/Attainment. | |||
| Plymouth County | Unclassifiable/Attainment. | |||
| Pocahontas County | Unclassifiable/Attainment. | |||
| Polk County | Unclassifiable/Attainment. | |||
| Pottawattamie County | Unclassifiable/Attainment. | |||
| Poweshiek County | Unclassifiable/Attainment. | |||
| Ringgold County | Unclassifiable/Attainment. | |||
| Sac County | Unclassifiable/Attainment. | |||
| Scott County | Unclassifiable/Attainment. | |||
| Shelby County | Unclassifiable/Attainment. | |||
| Sioux County | Unclassifiable/Attainment. | |||
| Story County | Unclassifiable/Attainment. | |||
| Tama County | Unclassifiable/Attainment. | |||
| Taylor County | Unclassifiable/Attainment. | |||
| Union County | Unclassifiable/Attainment. | |||
| Van Buren County | Unclassifiable/Attainment. | |||
| Wapello County | Unclassifiable/Attainment. | |||
| Warren County | Unclassifiable/Attainment. | |||
| Washington County | Unclassifiable/Attainment. | |||
| Wayne County | Unclassifiable/Attainment. | |||
| Webster County | Unclassifiable/Attainment. | |||
| Winnebago County | Unclassifiable/Attainment. | |||
| Winneshiek County | Unclassifiable/Attainment. | |||
| Woodbury County | Unclassifiable/Attainment. | |||
| Worth County | Unclassifiable/Attainment. | |||
| Wright County | Unclassifiable/Attainment. | |||
Iowa - 2012 Annual PM2.5 NAAQS
[Primary]
| Designated area1 | Designation | Classification | ||
|---|---|---|---|---|
| Date2 | Type | Date2 | Type | |
| Statewide: | ||||
| Adair County | Unclassifiable/Attainment | |||
| Adams County | Unclassifiable/Attainment | |||
| Allamakee County | Unclassifiable/Attainment | |||
| Appanoose County | Unclassifiable/Attainment | |||
| Audubon County | Unclassifiable/Attainment | |||
| Benton County | Unclassifiable/Attainment | |||
| Black Hawk County | Unclassifiable/Attainment | |||
| Boone County | Unclassifiable/Attainment | |||
| Bremer County | Unclassifiable/Attainment | |||
| Buchanan County | Unclassifiable/Attainment | |||
| Buena Vista County | Unclassifiable/Attainment | |||
| Butler County | Unclassifiable/Attainment | |||
| Calhoun County | Unclassifiable/Attainment | |||
| Carroll County | Unclassifiable/Attainment | |||
| Cass County | Unclassifiable/Attainment | |||
| Cedar County | Unclassifiable/Attainment | |||
| Cerro Gordo County | Unclassifiable/Attainment | |||
| Cherokee County | Unclassifiable/Attainment | |||
| Chickasaw County | Unclassifiable/Attainment | |||
| Clarke County | Unclassifiable/Attainment | |||
| Clay County | Unclassifiable/Attainment | |||
| Clayton County | Unclassifiable/Attainment | |||
| Clinton County | Unclassifiable/Attainment | |||
| Crawford County | Unclassifiable/Attainment | |||
| Dallas County | Unclassifiable/Attainment | |||
| Davis County | Unclassifiable/Attainment | |||
| Decatur County | Unclassifiable/Attainment | |||
| Delaware County | Unclassifiable/Attainment | |||
| Des Moines County | Unclassifiable/Attainment | |||
| Dickinson County | Unclassifiable/Attainment | |||
| Dubuque County | Unclassifiable/Attainment | |||
| Emmet County | Unclassifiable/Attainment | |||
| Fayette County | Unclassifiable/Attainment | |||
| Floyd County | Unclassifiable/Attainment | |||
| Franklin County | Unclassifiable/Attainment | |||
| Fremont County | Unclassifiable/Attainment | |||
| Greene County | Unclassifiable/Attainment | |||
| Grundy County | Unclassifiable/Attainment | |||
| Guthrie County | Unclassifiable/Attainment | |||
| Hamilton County | Unclassifiable/Attainment | |||
| Hancock County | Unclassifiable/Attainment | |||
| Hardin County | Unclassifiable/Attainment | |||
| Harrison County | Unclassifiable/Attainment | |||
| Henry County | Unclassifiable/Attainment | |||
| Howard County | Unclassifiable/Attainment | |||
| Humboldt County | Unclassifiable/Attainment | |||
| Ida County | Unclassifiable/Attainment | |||
| Iowa County | Unclassifiable/Attainment | |||
| Jackson County | Unclassifiable/Attainment | |||
| Jasper County | Unclassifiable/Attainment | |||
| Jefferson County | Unclassifiable/Attainment | |||
| Johnson County | Unclassifiable/Attainment | |||
| Jones County | Unclassifiable/Attainment | |||
| Keokuk County | Unclassifiable/Attainment | |||
| Kossuth County | Unclassifiable/Attainment | |||
| Lee County | Unclassifiable/Attainment | |||
| Linn County | Unclassifiable/Attainment | |||
| Louisa County | Unclassifiable/Attainment | |||
| Lucas County | Unclassifiable/Attainment | |||
| Lyon County | Unclassifiable/Attainment | |||
| Madison County | Unclassifiable/Attainment | |||
| Mahaska County | Unclassifiable/Attainment | |||
| Marion County | Unclassifiable/Attainment | |||
| Marshall County | Unclassifiable/Attainment | |||
| Mills County | Unclassifiable/Attainment | |||
| Mitchell County | Unclassifiable/Attainment | |||
| Monona County | Unclassifiable/Attainment | |||
| Monroe County | Unclassifiable/Attainment | |||
| Montgomery County | Unclassifiable/Attainment | |||
| Muscatine County | Unclassifiable/Attainment | |||
| O'Brien County | Unclassifiable/Attainment | |||
| Osceola County | Unclassifiable/Attainment | |||
| Page County | Unclassifiable/Attainment | |||
| Palo Alto County | Unclassifiable/Attainment | |||
| Plymouth County | Unclassifiable/Attainment | |||
| Pocahontas County | Unclassifiable/Attainment | |||
| Polk County | Unclassifiable/Attainment | |||
| Pottawattamie County | Unclassifiable/Attainment | |||
| Poweshiek County | Unclassifiable/Attainment | |||
| Ringgold County | Unclassifiable/Attainment | |||
| Sac County | Unclassifiable/Attainment | |||
| Scott County | Unclassifiable/Attainment | |||
| Shelby County | Unclassifiable/Attainment | |||
| Sioux County | Unclassifiable/Attainment | |||
| Story County | Unclassifiable/Attainment | |||
| Tama County | Unclassifiable/Attainment | |||
| Taylor County | Unclassifiable/Attainment | |||
| Union County | Unclassifiable/Attainment | |||
| Van Buren County | Unclassifiable/Attainment | |||
| Wapello County | Unclassifiable/Attainment | |||
| Warren County | Unclassifiable/Attainment | |||
| Washington County | Unclassifiable/Attainment | |||
| Wayne County | Unclassifiable/Attainment | |||
| Webster County | Unclassifiable/Attainment | |||
| Winnebago County | Unclassifiable/Attainment | |||
| Winneshiek County | Unclassifiable/Attainment | |||
| Woodbury County | Unclassifiable/Attainment | |||
| Worth County | Unclassifiable/Attainment | |||
| Wright County | Unclassifiable/Attainment | |||
Iowa - 1997 24-Hour PM2.5 NAAQS
[Primary and Secondary]
| Designated area | Designationa | Classification | ||
|---|---|---|---|---|
| Date1 | Type | Date | Type | |
| Statewide: | ||||
| Adair County | Unclassifiable/Attainment | |||
| Adams County | Unclassifiable/Attainment | |||
| Allamakee County | Unclassifiable/Attainment | |||
| Appanoose County | Unclassifiable/Attainment | |||
| Audubon County | Unclassifiable/Attainment | |||
| Benton County | Unclassifiable/Attainment | |||
| Black Hawk County | Unclassifiable/Attainment | |||
| Boone County | Unclassifiable/Attainment | |||
| Bremer County | Unclassifiable/Attainment | |||
| Buchanan County | Unclassifiable/Attainment | |||
| Buena Vista County | Unclassifiable/Attainment | |||
| Butler County | Unclassifiable/Attainment | |||
| Calhoun County | Unclassifiable/Attainment | |||
| Carroll County | Unclassifiable/Attainment | |||
| Cass County | Unclassifiable/Attainment | |||
| Cedar County | Unclassifiable/Attainment | |||
| Cerro Gordo County | Unclassifiable/Attainment | |||
| Cherokee County | Unclassifiable/Attainment | |||
| Chickasaw County | Unclassifiable/Attainment | |||
| Clarke County | Unclassifiable/Attainment | |||
| Clay County | Unclassifiable/Attainment | |||
| Clayton County | Unclassifiable/Attainment | |||
| Clinton County | Unclassifiable/Attainment | |||
| Crawford County | Unclassifiable/Attainment | |||
| Dallas County | Unclassifiable/Attainment | |||
| Davis County | Unclassifiable/Attainment | |||
| Decatur County | Unclassifiable/Attainment | |||
| Delaware County | Unclassifiable/Attainment | |||
| Des Moines County | Unclassifiable/Attainment | |||
| Dickinson County | Unclassifiable/Attainment | |||
| Dubuque County | Unclassifiable/Attainment | |||
| Emmet County | Unclassifiable/Attainment | |||
| Fayette County | Unclassifiable/Attainment | |||
| Floyd County | Unclassifiable/Attainment | |||
| Franklin County | Unclassifiable/Attainment | |||
| Fremont County | Unclassifiable/Attainment | |||
| Greene County | Unclassifiable/Attainment | |||
| Grundy County | Unclassifiable/Attainment | |||
| Guthrie County | Unclassifiable/Attainment | |||
| Hamilton County | Unclassifiable/Attainment | |||
| Hancock County | Unclassifiable/Attainment | |||
| Hardin County | Unclassifiable/Attainment | |||
| Harrison County | Unclassifiable/Attainment | |||
| Henry County | Unclassifiable/Attainment | |||
| Howard County | Unclassifiable/Attainment | |||
| Humboldt County | Unclassifiable/Attainment | |||
| Ida County | Unclassifiable/Attainment | |||
| Iowa County | Unclassifiable/Attainment | |||
| Jackson County | Unclassifiable/Attainment | |||
| Jasper County | Unclassifiable/Attainment | |||
| Jefferson County | Unclassifiable/Attainment | |||
| Johnson County | Unclassifiable/Attainment | |||
| Jones County | Unclassifiable/Attainment | |||
| Keokuk County | Unclassifiable/Attainment | |||
| Kossuth County | Unclassifiable/Attainment | |||
| Lee County | Unclassifiable/Attainment | |||
| Linn County | Unclassifiable/Attainment | |||
| Louisa County | Unclassifiable/Attainment | |||
| Lucas County | Unclassifiable/Attainment | |||
| Lyon County | Unclassifiable/Attainment | |||
| Madison County | Unclassifiable/Attainment | |||
| Mahaska County | Unclassifiable/Attainment | |||
| Marion County | Unclassifiable/Attainment | |||
| Marshall County | Unclassifiable/Attainment | |||
| Mills County | Unclassifiable/Attainment | |||
| Mitchell County | Unclassifiable/Attainment | |||
| Monona County | Unclassifiable/Attainment | |||
| Monroe County | Unclassifiable/Attainment | |||
| Montgomery County | Unclassifiable/Attainment | |||
| Muscatine County | Unclassifiable/Attainment | |||
| O'Brien County | Unclassifiable/Attainment | |||
| Osceola County | Unclassifiable/Attainment | |||
| Page County | Unclassifiable/Attainment | |||
| Palo Alto County | Unclassifiable/Attainment | |||
| Plymouth County | Unclassifiable/Attainment | |||
| Pocahontas County | Unclassifiable/Attainment | |||
| Polk County | Unclassifiable/Attainment | |||
| Pottawattamie County | Unclassifiable/Attainment | |||
| Poweshiek County | Unclassifiable/Attainment | |||
| Ringgold County | Unclassifiable/Attainment | |||
| Sac County | Unclassifiable/Attainment | |||
| Scott County | Unclassifiable/Attainment | |||
| Shelby County | Unclassifiable/Attainment | |||
| Sioux County | Unclassifiable/Attainment | |||
| Story County | Unclassifiable/Attainment | |||
| Tama County | Unclassifiable/Attainment | |||
| Taylor County | Unclassifiable/Attainment | |||
| Union County | Unclassifiable/Attainment | |||
| Van Buren County | Unclassifiable/Attainment | |||
| Wapello County | Unclassifiable/Attainment | |||
| Warren County | Unclassifiable/Attainment | |||
| Washington County | Unclassifiable/Attainment | |||
| Wayne County | Unclassifiable/Attainment | |||
| Webster County | Unclassifiable/Attainment | |||
| Winnebago County | Unclassifiable/Attainment | |||
| Winneshiek County | Unclassifiable/Attainment | |||
| Woodbury County | Unclassifiable/Attainment | |||
| Worth County | Unclassifiable/Attainment | |||
| Wright County | Unclassifiable/Attainment | |||
Iowa - 2006 24-Hour PM2.5 NAAQS
[Primary and Secondary]
| Designated area | Designationa | Classification | ||
|---|---|---|---|---|
| Date1 | Type | Date | Type | |
| Statewide: | ||||
| Adair County | Unclassifiable/Attainment. | |||
| Adams County | Unclassifiable/Attainment | |||
| Allamakee County | Unclassifiable/Attainment | |||
| Appanoose County | Unclassifiable/Attainment | |||
| Audubon County | Unclassifiable/Attainment | |||
| Benton County | Unclassifiable/Attainment | |||
| Black Hawk County | Unclassifiable/Attainment | |||
| Boone County | Unclassifiable/Attainment | |||
| Bremer County | Unclassifiable/Attainment | |||
| Buchanan County | Unclassifiable/Attainment | |||
| Buena Vista County | Unclassifiable/Attainment | |||
| Butler County | Unclassifiable/Attainment | |||
| Calhoun County | Unclassifiable/Attainment | |||
| Carroll County | Unclassifiable/Attainment | |||
| Cass County | Unclassifiable/Attainment | |||
| Cedar County | Unclassifiable/Attainment | |||
| Cerro Gordo County | Unclassifiable/Attainment | |||
| Cherokee County | Unclassifiable/Attainment | |||
| Chickasaw County | Unclassifiable/Attainment | |||
| Clarke County | Unclassifiable/Attainment | |||
| Clay County | Unclassifiable/Attainment | |||
| Clayton County | Unclassifiable/Attainment | |||
| Clinton County | Unclassifiable/Attainment | |||
| Crawford County | Unclassifiable/Attainment | |||
| Dallas County | Unclassifiable/Attainment | |||
| Davis County | Unclassifiable/Attainment | |||
| Decatur County | Unclassifiable/Attainment | |||
| Delaware County | Unclassifiable/Attainment | |||
| Des Moines County | Unclassifiable/Attainment | |||
| Dickinson County | Unclassifiable/Attainment | |||
| Dubuque County | Unclassifiable/Attainment | |||
| Emmet County | Unclassifiable/Attainment | |||
| Fayette County | Unclassifiable/Attainment | |||
| Floyd County | Unclassifiable/Attainment | |||
| Franklin County | Unclassifiable/Attainment | |||
| Fremont County | Unclassifiable/Attainment | |||
| Greene County | Unclassifiable/Attainment | |||
| Grundy County | Unclassifiable/Attainment | |||
| Guthrie County | Unclassifiable/Attainment | |||
| Hamilton County | Unclassifiable/Attainment | |||
| Hancock County | Unclassifiable/Attainment | |||
| Hardin County | Unclassifiable/Attainment | |||
| Harrison County | Unclassifiable/Attainment | |||
| Henry County | Unclassifiable/Attainment | |||
| Howard County | Unclassifiable/Attainment | |||
| Humboldt County | Unclassifiable/Attainment | |||
| Ida County | Unclassifiable/Attainment | |||
| Iowa County | Unclassifiable/Attainment | |||
| Jackson County | Unclassifiable/Attainment | |||
| Jasper County | Unclassifiable/Attainment | |||
| Jefferson County | Unclassifiable/Attainment | |||
| Johnson County | Unclassifiable/Attainment | |||
| Jones County | Unclassifiable/Attainment | |||
| Keokuk County | Unclassifiable/Attainment | |||
| Kossuth County | Unclassifiable/Attainment | |||
| Lee County | Unclassifiable/Attainment | |||
| Linn County | Unclassifiable/Attainment | |||
| Louisa County | Unclassifiable/Attainment | |||
| Lucas County | Unclassifiable/Attainment | |||
| Lyon County | Unclassifiable/Attainment | |||
| Madison County | Unclassifiable/Attainment | |||
| Mahaska County | Unclassifiable/Attainment | |||
| Marion County | Unclassifiable/Attainment | |||
| Marshall County | Unclassifiable/Attainment | |||
| Mills County | Unclassifiable/Attainment | |||
| Mitchell County | Unclassifiable/Attainment | |||
| Monona County | Unclassifiable/Attainment | |||
| Monroe County | Unclassifiable/Attainment | |||
| Montgomery County | Unclassifiable/Attainment | |||
| Muscatine County | Unclassifiable/Attainment | |||
| O'Brien County | Unclassifiable/Attainment | |||
| Osceola County | Unclassifiable/Attainment | |||
| Page County | Unclassifiable/Attainment | |||
| Palo Alto County | Unclassifiable/Attainment | |||
| Plymouth County | Unclassifiable/Attainment | |||
| Pocahontas County | Unclassifiable/Attainment | |||
| Polk County | Unclassifiable/Attainment | |||
| Pottawattamie County | Unclassifiable/Attainment | |||
| Poweshiek County | Unclassifiable/Attainment | |||
| Ringgold County | Unclassifiable/Attainment | |||
| Sac County | Unclassifiable/Attainment | |||
| Scott County | Unclassifiable/Attainment | |||
| Shelby County | Unclassifiable/Attainment | |||
| Sioux County | Unclassifiable/Attainment | |||
| Story County | Unclassifiable/Attainment | |||
| Tama County | Unclassifiable/Attainment | |||
| Taylor County | Unclassifiable/Attainment | |||
| Union County | Unclassifiable/Attainment | |||
| Van Buren County | Unclassifiable/Attainment | |||
| Wapello County | Unclassifiable/Attainment | |||
| Warren County | Unclassifiable/Attainment | |||
| Washington County | Unclassifiable/Attainment | |||
| Wayne County | Unclassifiable/Attainment | |||
| Webster County | Unclassifiable/Attainment | |||
| Winnebago County | Unclassifiable/Attainment | |||
| Winneshiek County | Unclassifiable/Attainment | |||
| Woodbury County | Unclassifiable/Attainment | |||
| Worth County | Unclassifiable/Attainment | |||
| Wright County | Unclassifiable/Attainment | |||
Iowa - NO2 (1971 Annual Standard)
| Designated area | Does not meet primary standards | Cannot be classified or better than national standards |
|---|---|---|
| Entire State | X |
Iowa - NO2 (2010 1-Hour Standard)
| Designated area | Designationa | |
|---|---|---|
| Date1 | Type | |
| Adair County | Unclassifiable/Attainment. | |
| Adams County | Unclassifiable/Attainment. | |
| Allamakee County | Unclassifiable/Attainment. | |
| Appanoose County | Unclassifiable/Attainment. | |
| Audubon County | Unclassifiable/Attainment. | |
| Benton County | Unclassifiable/Attainment. | |
| Black Hawk County | Unclassifiable/Attainment. | |
| Boone County | Unclassifiable/Attainment. | |
| Bremer County | Unclassifiable/Attainment. | |
| Buchanan County | Unclassifiable/Attainment. | |
| Buena Vista County | Unclassifiable/Attainment. | |
| Butler County | Unclassifiable/Attainment. | |
| Calhoun County | Unclassifiable/Attainment. | |
| Carroll County | Unclassifiable/Attainment. | |
| Cass County | Unclassifiable/Attainment. | |
| Cedar County | Unclassifiable/Attainment. | |
| Cerro Gordo County | Unclassifiable/Attainment. | |
| Cherokee County | Unclassifiable/Attainment. | |
| Chickasaw County | Unclassifiable/Attainment. | |
| Clarke County | Unclassifiable/Attainment. | |
| Clay County | Unclassifiable/Attainment. | |
| Clayton County | Unclassifiable/Attainment. | |
| Clinton County | Unclassifiable/Attainment. | |
| Crawford County | Unclassifiable/Attainment. | |
| Dallas County | Unclassifiable/Attainment. | |
| Davis County | Unclassifiable/Attainment. | |
| Decatur County | Unclassifiable/Attainment. | |
| Delaware County | Unclassifiable/Attainment. | |
| Des Moines County | Unclassifiable/Attainment. | |
| Dickinson County | Unclassifiable/Attainment. | |
| Dubuque County | Unclassifiable/Attainment. | |
| Emmet County | Unclassifiable/Attainment. | |
| Fayette County | Unclassifiable/Attainment. | |
| Floyd County | Unclassifiable/Attainment. | |
| Franklin County | Unclassifiable/Attainment. | |
| Fremont County | Unclassifiable/Attainment. | |
| Greene County | Unclassifiable/Attainment. | |
| Grundy County | Unclassifiable/Attainment. | |
| Guthrie County | Unclassifiable/Attainment. | |
| Hamilton County | Unclassifiable/Attainment. | |
| Hancock County | Unclassifiable/Attainment. | |
| Hardin County | Unclassifiable/Attainment. | |
| Harrison County | Unclassifiable/Attainment. | |
| Henry County | Unclassifiable/Attainment. | |
| Howard County | Unclassifiable/Attainment. | |
| Humboldt County | Unclassifiable/Attainment. | |
| Ida County | Unclassifiable/Attainment. | |
| Iowa County | Unclassifiable/Attainment. | |
| Jackson County | Unclassifiable/Attainment. | |
| Jasper County | Unclassifiable/Attainment. | |
| Jefferson County | Unclassifiable/Attainment. | |
| Johnson County | Unclassifiable/Attainment. | |
| Jones County | Unclassifiable/Attainment. | |
| Keokuk County | Unclassifiable/Attainment. | |
| Kossuth County | Unclassifiable/Attainment. | |
| Lee County | Unclassifiable/Attainment. | |
| Linn County | Unclassifiable/Attainment. | |
| Louisa County | Unclassifiable/Attainment. | |
| Lucas County | Unclassifiable/Attainment. | |
| Lyon County | Unclassifiable/Attainment. | |
| Madison County | Unclassifiable/Attainment. | |
| Mahaska County | Unclassifiable/Attainment. | |
| Marion County | Unclassifiable/Attainment. | |
| Marshall County | Unclassifiable/Attainment. | |
| Mills County | Unclassifiable/Attainment. | |
| Mitchell County | Unclassifiable/Attainment. | |
| Monona County | Unclassifiable/Attainment. | |
| Monroe County | Unclassifiable/Attainment. | |
| Montgomery County | Unclassifiable/Attainment. | |
| Muscatine County | Unclassifiable/Attainment. | |
| O'Brien County | Unclassifiable/Attainment. | |
| Osceola County | Unclassifiable/Attainment. | |
| Page County | Unclassifiable/Attainment. | |
| Palo Alto County | Unclassifiable/Attainment. | |
| Plymouth County | Unclassifiable/Attainment. | |
| Pocahontas County | Unclassifiable/Attainment. | |
| Polk County | Unclassifiable/Attainment. | |
| Pottawattamie County | Unclassifiable/Attainment. | |
| Poweshiek County | Unclassifiable/Attainment. | |
| Ringgold County | Unclassifiable/Attainment. | |
| Sac County | Unclassifiable/Attainment. | |
| Scott County | Unclassifiable/Attainment. | |
| Shelby County | Unclassifiable/Attainment. | |
| Sioux County | Unclassifiable/Attainment. | |
| Story County | Unclassifiable/Attainment. | |
| Tama County | Unclassifiable/Attainment. | |
| Taylor County | Unclassifiable/Attainment. | |
| Union County | Unclassifiable/Attainment. | |
| Van Buren County | Unclassifiable/Attainment. | |
| Wapello County | Unclassifiable/Attainment. | |
| Warren County | Unclassifiable/Attainment. | |
| Washington County | Unclassifiable/Attainment. | |
| Wayne County | Unclassifiable/Attainment. | |
| Webster County | Unclassifiable/Attainment. | |
| Winnebago County | Unclassifiable/Attainment. | |
| Winneshiek County | Unclassifiable/Attainment. | |
| Woodbury County | Unclassifiable/Attainment. | |
| Worth County | Unclassifiable/Attainment. | |
| Wright County | Unclassifiable/Attainment. | |
Iowa - 1997 8-Hour Ozone NAAQS
[Primary and Secondary]
| Designated area | Designationa | Category/classification | ||
|---|---|---|---|---|
| Date1 | Type | Date1 | Type | |
| Statewide | Unclassifiable/Attainment | |||
| Adair County | ||||
| Adams County | ||||
| Allamakee County | ||||
| Appanoose County | ||||
| Audubon County | ||||
| Benton County | ||||
| Black Hawk County | ||||
| Boone County | ||||
| Bremer County | ||||
| Buchanan County | ||||
| Buena Vista County | ||||
| Butler County | ||||
| Calhoun County | ||||
| Carroll County | ||||
| Cass County | ||||
| Cedar County | ||||
| Cerro Gordo County | ||||
| Cherokee County | ||||
| Chickasaw County | ||||
| Clarke County | ||||
| Clay County | ||||
| Clayton County | ||||
| Clinton County | ||||
| Crawford County | ||||
| Dallas County | ||||
| Davis County | ||||
| Decatur County | ||||
| Delaware County | ||||
| Des Moines County | ||||
| Dickinson County | ||||
| Dubuque County | ||||
| Emmet County | ||||
| Fayette County | ||||
| Floyd County | ||||
| Franklin County | ||||
| Fremont County | ||||
| Greene County | ||||
| Grundy County | ||||
| Guthrie County | ||||
| Hamilton County | ||||
| Hancock County | ||||
| Hardin County | ||||
| Harrison County | ||||
| Henry County | ||||
| Howard County | ||||
| Humboldt County | ||||
| Ida County | ||||
| Iowa County | ||||
| Jackson County | ||||
| Jasper County | ||||
| Jefferson County | ||||
| Johnson County | ||||
| Jones County | ||||
| Keokuk County | ||||
| Kossuth County | ||||
| Lee County | ||||
| Linn County | ||||
| Louisa County | ||||
| Lucas County | ||||
| Lyon County | ||||
| Madison County | ||||
| Mahaska County | ||||
| Marion County | ||||
| Marshall County | ||||
| Mills County | ||||
| Mitchell County | ||||
| Monona County | ||||
| Monroe County | ||||
| Montgomery County | ||||
| Muscatine County | ||||
| O'Brien County | ||||
| Osceola County | ||||
| Page County | ||||
| Palo Alto County | ||||
| Plymouth County | ||||
| Pocahontas County | ||||
| Polk County | ||||
| Pottawattamie County | ||||
| Poweshiek County | ||||
| Ringgold County | ||||
| Sac County | ||||
| Scott County | ||||
| Shelby County | ||||
| Sioux County | ||||
| Story County | ||||
| Tama County | ||||
| Taylor County | ||||
| Union County | ||||
| Van Buren County | ||||
| Wapello County | ||||
| Warren County | ||||
| Washington County | ||||
| Wayne County | ||||
| Webster County | ||||
| Winnebago County | ||||
| Winneshiek County | ||||
| Woodbury County | ||||
| Worth County | ||||
| Wright County | ||||
Iowa - 2008 8-Hour Ozone NAAQS
[Primary and Secondary]
| Designated area | Designation | Classification | ||
|---|---|---|---|---|
| Date1 | Type | Date1 | Type | |
| Statewide and Any Areas of Indian Country: | Unclassifiable/Attainment | |||
| Adair County | ||||
| Adams County | ||||
| Allamakee County | ||||
| Appanoose County | ||||
| Audubon County | ||||
| Benton County | ||||
| Black Hawk County | ||||
| Boone County | ||||
| Bremer County | ||||
| Buchanan County | ||||
| Buena Vista County | ||||
| Butler County | ||||
| Calhoun County | ||||
| Carroll County | ||||
| Cass County | ||||
| Cedar County | ||||
| Cerro Gordo County | ||||
| Cherokee County | ||||
| Chickasaw County | ||||
| Clarke County | ||||
| Clay County | ||||
| Clayton County | ||||
| Clinton County | ||||
| Crawford County | ||||
| Dallas County | ||||
| Davis County | ||||
| Decatur County | ||||
| Delaware County | ||||
| Des Moines County | ||||
| Dickinson County | ||||
| Dubuque County | ||||
| Emmet County | ||||
| Fayette County | ||||
| Floyd County | ||||
| Franklin County | ||||
| Fremont County | ||||
| Greene County | ||||
| Grundy County | ||||
| Guthrie County | ||||
| Hamilton County | ||||
| Hancock County | ||||
| Hardin County | ||||
| Harrison County | ||||
| Henry County | ||||
| Howard County | ||||
| Humboldt County | ||||
| Ida County | ||||
| Iowa County | ||||
| Jackson County | ||||
| Jasper County | ||||
| Jefferson County | ||||
| Johnson County | ||||
| Jones County | ||||
| Keokuk County | ||||
| Kossuth County | ||||
| Lee County | ||||
| Linn County | ||||
| Louisa County | ||||
| Lucas County | ||||
| Lyon County | ||||
| Madison County | ||||
| Mahaska County | ||||
| Marion County | ||||
| Marshall County | ||||
| Mills County | ||||
| Mitchell County | ||||
| Monona County | ||||
| Monroe County | ||||
| Montgomery County | ||||
| Muscatine County | ||||
| O'Brien County | ||||
| Osceola County | ||||
| Page County | ||||
| Palo Alto County | ||||
| Plymouth County | ||||
| Pocahontas County | ||||
| Polk County | ||||
| Pottawattamie County | ||||
| Poweshiek County | ||||
| Ringgold County | ||||
| Sac County | ||||
| Scott County | ||||
| Shelby County | ||||
| Sioux County | ||||
| Story County | ||||
| Tama County | ||||
| Taylor County | ||||
| Union County | ||||
| Van Buren County | ||||
| Wapello County | ||||
| Warren County | ||||
| Washington County | ||||
| Wayne County | ||||
| Webster County | ||||
| Winnebago County | ||||
| Winneshiek County | ||||
| Woodbury County | ||||
| Worth County | ||||
| Wright County | ||||
Iowa - 2015 8-Hour Ozone NAAQS
[Primary and Secondary]
| Designated area1 | Designation | Classification | ||
|---|---|---|---|---|
| Date2 | Type | Date | Type | |
| Statewide | Attainment/Unclassifiable | |||
| Adair County. | ||||
| Adams County. | ||||
| Allamakee County. | ||||
| Appanoose County. | ||||
| Audubon County. | ||||
| Benton County. | ||||
| Black Hawk County. | ||||
| Boone County. | ||||
| Bremer County. | ||||
| Buchanan County. | ||||
| Buena Vista County. | ||||
| Butler County. | ||||
| Calhoun County. | ||||
| Carroll County. | ||||
| Cass County. | ||||
| Cedar County. | ||||
| Cerro Gordo County. | ||||
| Cherokee County. | ||||
| Chickasaw County. | ||||
| Clarke County. | ||||
| Clay County. | ||||
| Clayton County. | ||||
| Clinton County. | ||||
| Crawford County. | ||||
| Dallas County. | ||||
| Davis County. | ||||
| Decatur County. | ||||
| Delaware County. | ||||
| Des Moines County. | ||||
| Dickinson County. | ||||
| Dubuque County. | ||||
| Emmet County. | ||||
| Fayette County. | ||||
| Floyd County. | ||||
| Franklin County. | ||||
| Fremont County. | ||||
| Greene County. | ||||
| Grundy County. | ||||
| Guthrie County. | ||||
| Hamilton County. | ||||
| Hancock County. | ||||
| Hardin County. | ||||
| Harrison County. | ||||
| Henry County. | ||||
| Howard County. | ||||
| Humboldt County. | ||||
| Ida County. | ||||
| Iowa County. | ||||
| Jackson County. | ||||
| Jasper County. | ||||
| Jefferson County. | ||||
| Johnson County. | ||||
| Jones County. | ||||
| Keokuk County. | ||||
| Kossuth County. | ||||
| Lee County. | ||||
| Linn County. | ||||
| Louisa County. | ||||
| Lucas County. | ||||
| Lyon County. | ||||
| Madison County. | ||||
| Mahaska County. | ||||
| Marion County. | ||||
| Marshall County. | ||||
| Mills County. | ||||
| Mitchell County. | ||||
| Monona County. | ||||
| Monroe County. | ||||
| Montgomery County. | ||||
| Muscatine County. | ||||
| O'Brien County. | ||||
| Osceola County. | ||||
| Page County. | ||||
| Palo Alto County. | ||||
| Plymouth County. | ||||
| Pocahontas County. | ||||
| Polk County. | ||||
| Pottawattamie County. | ||||
| Poweshiek County. | ||||
| Ringgold County. | ||||
| Sac County. | ||||
| Scott County. | ||||
| Shelby County. | ||||
| Sioux County. | ||||
| Story County. | ||||
| Tama County. | ||||
| Taylor County. | ||||
| Union County. | ||||
| Van Buren County. | ||||
| Wapello County. | ||||
| Warren County. | ||||
| Washington County. | ||||
| Wayne County. | ||||
| Webster County. | ||||
| Winnebago County. | ||||
| Winneshiek County. | ||||
| Woodbury County. | ||||
| Worth County. | ||||
| Wright County. | . | |||
Iowa - 2008 Lead NAAQS
| Designated area | Designation for the 2008 NAAQSa | |
|---|---|---|
| Date1 | Type | |
| Pottawattamie County, IA: | ||
| Pottawattamie County (part) | 10/4/2018 | Attainment. |
| Area bounded by Avenue G on the north, N 16th/S 16th street on the east, 23rd Avenue on the south, and N 35th/S 35th street on the west | ||
| Rest of State | Unclassifiable/Attainment. | |
[43 FR 8964, Mar. 3, 1978]