81.304—Arkansas.
| Arkansas—SO2 | ||||
| Designated area | Does not meet primary standards | Does not meet secondary standards | Cannot be classified | Better than national standards |
|---|---|---|---|---|
| AQCR 016 | X | |||
| AQCR 017 | X | |||
| AQCR 018 | X | |||
| AQCR 019 | X | |||
| AQCR 020 | X | |||
| AQCR 021 | X | |||
| AQCR 022 | X | |||
| Arkansas—Carbon Monoxide | ||||
| Designated Area | Designation | Classification | ||
|---|---|---|---|---|
| Date 1 | Type | Date 1 | Type | |
| AQCR 016 Central Arkansas Intrastate | Unclassifiable/Attainment | |||
| Chicot County | ||||
| Clark County | ||||
| Cleveland County | ||||
| Conway County | ||||
| Dallas County | ||||
| Desha County | ||||
| Drew County | ||||
| Faulkner County | ||||
| Garland County | ||||
| Grant County | ||||
|
Code of Federal Regulations
93
|
||||
| Hot Spring County | ||||
| Jefferson County | ||||
| Lincoln County | ||||
| Lonoke County | ||||
| Perry County | ||||
| Pope County | ||||
| Pulaski County | ||||
| Saline County | ||||
| Yell County | ||||
| AQCR 017 Metropolitan Fort Smith Interstate | Unclassifiable/Attainment | |||
| Benton County | ||||
| Crawford County | ||||
| Sebastian County | ||||
| Washington County | ||||
| AQCR 018 Metropolitan Memphis Interstate | Unclassifiable/Attainment | |||
| Crittenden County | ||||
| AQCR 019 Monroe (Louisiana)-El Dorado Interstate | Unclassifiable/Attainment | |||
| Ashley County | ||||
| Bradley County | ||||
| Calhoun County | ||||
| Nevada County | ||||
| Ouachita County | ||||
| Union County | ||||
| AQCR 020 Northeast Arkansas Intrastate | Unclassifiable/Attainment | |||
| Arkansas County | ||||
| Clay County | ||||
| Craighead County | ||||
| Cross County | ||||
| Greene County | ||||
| Independence County | ||||
| Jackson County | ||||
| Lawrence County | ||||
| Lee County | ||||
| Mississippi County | ||||
| Monroe County | ||||
| Phillips County | ||||
| Poinsett County | ||||
| Prairie County | ||||
| Randolph County | ||||
| Sharp County | ||||
| St. Francis County | ||||
| White County | ||||
| Woodruff County | ||||
| AQCR 021 Northwest Arkansas Intrastate | Unclassifiable/Attainment | |||
| Baxter County | ||||
| Boone County | ||||
| Carroll County | ||||
| Cleburne County | ||||
| Franklin County | ||||
| Fulton County | ||||
| Izard County | ||||
| Johnson County | ||||
| Logan County | ||||
| Madison County | ||||
| Marion County | ||||
| Montgomery County | ||||
| Newton County | ||||
| Pike County | ||||
| Polk County | ||||
| Scott County | ||||
| Searcy County | ||||
| Stone County | ||||
| Van Buren County | ||||
| AQCR 022 Shreveport-Texarkana-Tyler Interstate | Unclassifiable/Attainment | |||
| Columbia County | ||||
| Hempstead County | ||||
| Howard County | ||||
| Lafayette County | ||||
| Little River County | ||||
| Miller County | ||||
| Sevier County | ||||
|
Code of Federal Regulations
94
|
||||
| 1 This date is November 15, 1990, unless otherwise noted. | ||||
| Arkansas—Ozone (1-Hour Standard)2 | ||||
| Designated area | Designation | Classification | ||
|---|---|---|---|---|
| Date1 | Type | Date1 | Type | |
| AQCR 016 Central Arkansas Intrastate (part) Pulaski County | Unclassifiable/Attainment | |||
| AQCR 016 Central Arkansas Intrastate (Remainder of) | Unclassifiable/Attainment | |||
| Chicot County | ||||
| Clark County | ||||
| Cleveland County | ||||
| Conway County | ||||
| Dallas County | ||||
| Desha County | ||||
| Drew County | ||||
| Faulkner County | ||||
| Garland County | ||||
| Grant County | ||||
| Hot Spring County | ||||
| Jefferson County | ||||
| Lincoln County | ||||
| Lonoke County | ||||
| Perry County | ||||
| Pope County | ||||
| Saline County | ||||
| Yell County | ||||
| AQCR 017 Metropolitan Fort Smith Interstate | Unclassifiable/Attainment | |||
| Benton County | ||||
| Crawford County | ||||
| Sebastian County | ||||
| Washington County | ||||
| AQCR 018 Metropolitan Memphis Interstate | Unclassifiable/Attainment | |||
| Crittenden County | ||||
| AQCR 019 Monroe-El Dorado Interstate | Unclassifiable/Attainment | |||
| Ashley County | ||||
| Bradley County | ||||
| Calhoun County | ||||
| Nevada County | ||||
| Ouachita County | ||||
| Union County | ||||
| AQCR 020 Northeast Arkansas Intrastate | Unclassifiable/Attainment | |||
| Arkansas County | ||||
| Clay County | ||||
| Craighead County | ||||
| Cross County | ||||
| Greene County | ||||
| Independence County | ||||
| Jackson County | ||||
| Lawrence County | ||||
| Lee County | ||||
| Mississippi County | ||||
| Monroe County | ||||
| Phillips County | ||||
| Poinsett County | ||||
| Prairie County | ||||
| Randolph County | ||||
| Sharp County | ||||
| St. Francis County | ||||
| White County | ||||
| Woodruff County | ||||
| AQCR 021 Northwest Arkansas Intrastate | Unclassifiable/Attainment | |||
| Baxter County | ||||
| Boone County | ||||
| Carroll County | ||||
| Cleburne County | ||||
| Franklin County | ||||
| Fulton County | ||||
|
Code of Federal Regulations
95
|
||||
| Izard County | ||||
| Johnson County | ||||
| Logan County | ||||
| Madison County | ||||
| Marion County | ||||
| Montgomery County | ||||
| Newton County | ||||
| Pike County | ||||
| Polk County | ||||
| Scott County | ||||
| Searcy County | ||||
| Stone County | ||||
| Van Buren County | ||||
| AQCR 022 Shreveport-Texarkana-Tyler Interstate | Unclassifiable/Attainment | |||
| Columbia County | ||||
| Hempstead County | ||||
| Howard County | ||||
| Lafayette County | ||||
| Little River County | ||||
| Miller County | ||||
| Sevier County | ||||
| 1 This date is October 18, 2000, unless otherwise noted. | ||||
| 2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Arkansas. | ||||
| Arkansas—PM-10 | ||||
| Designated area | Designation | Classification | ||
|---|---|---|---|---|
| Date | Type | Date | Type | |
| AQCR 016Central Arkansas Intrastate | Unclassifiable | Unclassifiable. | ||
| AQCR 017Metropolitan Fort Smith Interstate | Unclassifiable | Unclassifiable. | ||
| AQCR 018Metropolitan Memphis Intrastate | Unclassifiable | Unclassifiable. | ||
| AQCR 019Monroe (Louisiana)-El Dorado Interstate | Unclassifiable | Unclassifiable. | ||
| AQCR 020Northeast Arkansas Intrastate | Unclassifiable | Unclassifiable. | ||
| AQCR 021Northwest Arkansas Intrastate | Unclassifiable | Unclassifiable. | ||
| AQCR 022Shreveport-Texarkana-Tyler Interstate | Unclassifiable | Unclassifiable. | ||
| Arkansas—NO2 | ||
| Designated area | Does not meet primary standards | Cannot be classified or better than national standards |
|---|---|---|
| AQCR 016 | X | |
| AQCR 017 | X | |
| AQCR 018 | X | |
| AQCR 019 | X | |
| AQCR 020 | X | |
| AQCR 021 | X | |
| AQCR 022 | X | |
| Arkansas—Ozone (8-Hour Standard) | ||||
| Designated area | Designation a | Category/classification | ||
|---|---|---|---|---|
| Date 1 | Type | Date 1 | Type | |
| Memphis, TN-AR: (AQCR Metropolitan Memphis Interstate) Crittenden County | (3) | Attainment | (3) | |
| AQCR 016 Central Arkansas Intrastate (part) | Unclassifiable/Attainment | |||
| Pulaski County | ||||
| AQCR 016Central Arkansas Intrastate (remainder of) | Unclassifiable/Attainment | |||
| Chicot County | ||||
| Clark County | ||||
| Cleveland County | ||||
| Conway County | ||||
| Dallas County | ||||
| Desha County | ||||
|
Code of Federal Regulations
96
|
||||
| Drew County | ||||
| Faulkner County | ||||
| Garland County | ||||
| Grant County | ||||
| Hot Spring County | ||||
| Jefferson County | ||||
| Lincoln County | ||||
| Lonoke County | ||||
| Perry County | ||||
| Pope County | ||||
| Saline County | ||||
| Yell County | ||||
| AQCR 017Metropolitan Fort Smith Interstate | Unclassifiable/Attainment | |||
| Benton County | ||||
| Crawford County | ||||
| Sebastian County | ||||
| Washington County | ||||
| AQCR 019Monroe-El Dorado Interstate | Unclassifiable/Attainment | |||
| Ashley County | ||||
| Bradley County | ||||
| Calhoun County | ||||
| Nevada County | ||||
| Ouachita County | ||||
| Union County | ||||
| AQCR 020Northeast Arkansas Intrastate | Unclassifiable/Attainment | |||
| Arkansas County | ||||
| Clay County | ||||
| Craighead County | ||||
| Cross County | ||||
| Greene County | ||||
| Independence County | ||||
| Jackson County | ||||
| Lawrence County | ||||
| Lee County | ||||
| Mississippi County | ||||
| Monroe County | ||||
| Phillips County | ||||
| Poinsett County | ||||
| Prairie County | ||||
| Randolph County | ||||
| St. Francis County | ||||
| Sharp County | ||||
| White County | ||||
| Woodruff County | ||||
| AQCR 021Northwest Arkansas Intrastate | Unclassifiable/Attainment | |||
| Baxter County | ||||
| Boone County | ||||
| Carroll County | ||||
| Cleburne County | ||||
| Franklin County | ||||
| Fulton County | ||||
| Izard County | ||||
| Johnson County | ||||
| Logan County | ||||
| Madison County | ||||
| Marion County | ||||
| Montgomery County | ||||
| Newton County | ||||
| Pike County | ||||
| Polk County | ||||
| Scott County | ||||
| Searcy County | ||||
| Stone County | ||||
| Van Buren County | ||||
| AQCR 022Shreveport-Texarkana-Tyler Interstate. | Unclassifiable/Attainment | |||
| Columbia County | ||||
| Hempstead County | ||||
| Howard County | ||||
| Lafayette County | ||||
| Little River County | ||||
| Miller County | ||||
|
Code of Federal Regulations
97
|
||||
| Sevier County | ||||
| a Includes Indian Country located in each county or area, except as otherwise specified. | ||||
| 1 This date is June 15, 2004, unless otherwise noted. | ||||
| 2 April 28, 2008. | ||||
| Arkansas—PM2.5 (Annual NAAQS) | ||
| Designated area | Designation a | |
|---|---|---|
| Date 1 | Type | |
| AQCR 016 Central Arkansas Intrastate: | ||
| Chicot County | Unclassifiable/Attainment. | |
| Clark County | Unclassifiable/Attainment. | |
| Cleveland County | Unclassifiable/Attainment. | |
| Conway County | Unclassifiable/Attainment. | |
| Dallas County | Unclassifiable/Attainment. | |
| Desha County | Unclassifiable/Attainment. | |
| Drew County | Unclassifiable/Attainment. | |
| Faulkner County | Unclassifiable/Attainment. | |
| Garland County | Unclassifiable/Attainment. | |
| Grant County | Unclassifiable/Attainment. | |
| Hot Spring County | Unclassifiable/Attainment. | |
| Jefferson County | Unclassifiable/Attainment. | |
| Lincoln County | Unclassifiable/Attainment. | |
| Lonoke County | Unclassifiable/Attainment. | |
| Perry County | Unclassifiable/Attainment. | |
| Pope County | Unclassifiable/Attainment. | |
| Pulaski County | Unclassifiable/Attainment. | |
| Saline County | Unclassifiable/Attainment. | |
| Yell County | Unclassifiable/Attainment. | |
| AQCR 017 Metropolitan Fort Smith Interstate: | ||
| Benton County | Unclassifiable/Attainment. | |
| Crawford County | Unclassifiable/Attainment. | |
| Sebastian County | Unclassifiable/Attainment. | |
| Washington County | Unclassifiable/Attainment. | |
| AQCR 019 Monroe-El Dorado Interstate: | ||
| Ashley County | Unclassifiable/Attainment. | |
| Bradley County | Unclassifiable/Attainment. | |
| Calhoun County | Unclassifiable/Attainment. | |
| Nevada County | Unclassifiable/Attainment. | |
| Ouachita County | Unclassifiable/Attainment. | |
| Union County | Unclassifiable/Attainment. | |
| AQCR 020 Northeast Arkansas Intrastate: | ||
| Arkansas County | Unclassifiable/Attainment. | |
| Clay County | Unclassifiable/Attainment. | |
| Craighead County | Unclassifiable/Attainment. | |
| Cross County | Unclassifiable/Attainment. | |
| Greene County | Unclassifiable/Attainment. | |
| Independence County | Unclassifiable/Attainment. | |
| Jackson County | Unclassifiable/Attainment. | |
| Lawrence County | Unclassifiable/Attainment. | |
| Lee County | Unclassifiable/Attainment. | |
| Mississippi County | Unclassifiable/Attainment. | |
| Monroe County | Unclassifiable/Attainment. | |
| Phillips County | Unclassifiable/Attainment. | |
| Poinsett County | Unclassifiable/Attainment. | |
| Prairie County | Unclassifiable/Attainment. | |
| Randolph County | Unclassifiable/Attainment. | |
| St. Francis County | Unclassifiable/Attainment. | |
| Sharp County | Unclassifiable/Attainment. | |
| White County | Unclassifiable/Attainment. | |
| Woodruff County | Unclassifiable/Attainment. | |
| AQCR 021 Northwest Arkansas Intrastate: | ||
| Baxter County | Unclassifiable/Attainment. | |
| Boone County | Unclassifiable/Attainment. | |
| Carroll County | Unclassifiable/Attainment. | |
| Cleburne County | Unclassifiable/Attainment. | |
| Franklin County | Unclassifiable/Attainment. | |
| Fulton County | Unclassifiable/Attainment. | |
| Izard County | Unclassifiable/Attainment. | |
|
Code of Federal Regulations
98
|
||
| Johnson County | Unclassifiable/Attainment. | |
| Logan County | Unclassifiable/Attainment. | |
| Madison County | Unclassifiable/Attainment. | |
| Marion County | Unclassifiable/Attainment. | |
| Montgomery County | Unclassifiable/Attainment. | |
| Newton County | Unclassifiable/Attainment. | |
| Pike County | Unclassifiable/Attainment. | |
| Polk County | Unclassifiable/Attainment. | |
| Scott County | Unclassifiable/Attainment. | |
| Searcy County | Unclassifiable/Attainment. | |
| Stone County | Unclassifiable/Attainment. | |
| Van Buren County | Unclassifiable/Attainment. | |
| AQCR 022 Shreveport-Texarkana-Tyler Interstate: | ||
| Columbia County | Unclassifiable/Attainment. | |
| Hempstead County | Unclassifiable/Attainment. | |
| Howard County | Unclassifiable/Attainment. | |
| Lafayette County | Unclassifiable/Attainment. | |
| Little River County | Unclassifiable/Attainment. | |
| Miller County | Unclassifiable/Attainment. | |
| Sevier County | Unclassifiable/Attainment. | |
| Memphis, TN-AR: | ||
| (AQCR 018 Metropolitan Memphis Interstate): | ||
| Crittenden 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. | ||
| Arkansas—PM2.5 [24-hour NAAQS] | ||||
| Designated area | Designation for the 1997 NAAQS a | Designation for the 2006 NAAQS a | ||
|---|---|---|---|---|
| Date 1 | Type | Date 2 | Type | |
| AQCR 016Central Arkansas Intrastate: | ||||
| Chicot County | Unclassifiable/Attainment | Unclassifiable/Attainment. | ||
| Clark County | Unclassifiable/Attainment | Unclassifiable/Attainment. | ||
| Cleveland County | Unclassifiable/Attainment | Unclassifiable/Attainment. | ||
| Conway County | Unclassifiable/Attainment | Unclassifiable/Attainment. | ||
| Dallas County | Unclassifiable/Attainment | Unclassifiable/Attainment. | ||
| Desha County | Unclassifiable/Attainment | Unclassifiable/Attainment. | ||
| Drew County | Unclassifiable/Attainment | Unclassifiable/Attainment. | ||
| Faulkner County | Unclassifiable/Attainment | Unclassifiable/Attainment. | ||
| Garland County | Unclassifiable/Attainment | Unclassifiable/Attainment. | ||
| Grant County | Unclassifiable/Attainment | Unclassifiable/Attainment. | ||
| Hot Spring County | Unclassifiable/Attainment | Unclassifiable/Attainment. | ||
| Jefferson County | Unclassifiable/Attainment | Unclassifiable/Attainment. | ||
| Lincoln County | Unclassifiable/Attainment | Unclassifiable/Attainment. | ||
| Lonoke County | Unclassifiable/Attainment | Unclassifiable/Attainment. | ||
| Perry County | Unclassifiable/Attainment | Unclassifiable/Attainment. | ||
| Pope County | Unclassifiable/Attainment | Unclassifiable/Attainment. | ||
| Pulaski County | Unclassifiable/Attainment | Unclassifiable/Attainment. | ||
| Saline County | Unclassifiable/Attainment | Unclassifiable/Attainment. | ||
| Yell County | Unclassifiable/Attainment | Unclassifiable/Attainment. | ||
| AQCR 017Metropolitan Fort Smith Interstate: | ||||
|
Code of Federal Regulations
99
| ||||