Green Book

You are here: EPA Home > Green Book > >National Area and County-Level Multi-Pollutant Information >District Of Columbia Nonattainment/Maintenance Status for Each County by Year for All Criteria Pollutants

District Of Columbia Nonattainment/Maintenance Status for Each County by Year for All Criteria Pollutants

Data is current as of August 31, 2024

Listed by County, NAAQS, Area. The 8-hour Ozone (1997) standard was revoked on April 6, 2015 and the 1-hour Ozone (1979) standard was revoked on June 15, 2005.

* The 1997 Primary Annual PM-2.5 NAAQS (level of 15 µg/m3) is revoked in attainment and maintenance areas for that NAAQS. For additional information see the PM-2.5 NAAQS SIP Requirements Final Rule, effective October 24, 2016. (81 FR 58009)

Change the State:
 
Important Notes Download National Dataset: dbf   |   xls    |   Data dictionary (PDF)
County NAAQS Area Name Nonattainment in Year Redesignation
to Maintenance		 Classification Whole or/
Part County		 Population
(2010)		 State/
County
FIPS Codes
DISTRICT OF COLUMBIA
District of Columbia 1-Hour Ozone (1979)-NAAQS revoked Washington, DC-MD-VA
92 93 94 95 96 97 98 99 00 01 02 03 04                                                                                                    
/ / Severe-15 Whole 601,723 11/001
District of Columbia 8-Hour Ozone (1997)-NAAQS revoked Washington, DC-MD-VA
                                                            04 05 06 07 08 09 10 11 12 13 14                                                  
/ / Moderate Whole 601,723 11/001
District of Columbia 8-Hour Ozone (2008) Washington, DC-MD-VA
                                                                                                    12 13 14 15 16 17 18                              
08/15/2019 Marginal Whole 601,723 11/001
District of Columbia 8-Hour Ozone (2015) Washington, DC-MD-VA
                                                                                                                                  18 19 20 21 22 23 24
/ / Moderate Whole 601,723 11/001
District of Columbia Carbon Monoxide (1971) Washington, DC-MD-VA
92 93 94 95                                                                                                                                                 
03/15/1996 Moderate <= 12.7ppm Whole 601,723 11/001
District of Columbia PM-2.5 (1997)-NAAQS revoked Washington, DC-MD-VA
                                                                 05 06 07 08 09 10 11 12 13                                                       
11/05/2014 * Moderate Whole 601,723 11/001
Important Notes

Go Top