North Carolina Whole or Part County Nonattainment Status by Year Since 1992 for all Criteria Pollutants

Data is current as of March 31, 2024

Listed by State, County, NAAQS (W=Whole County,P=Partial County designated nonattainment as of report date)
The 8-hour Ozone (1997) standard was revoked on April 6, 2015 and the 1-hour Ozone (1979) standard was revoked on June 15, 2005.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)

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ALASKA ALABAMA ARKANSAS ARIZONA CALIFORNIA COLORADO CONNECTICUT DISTRICT OF COLUMBIADELAWARE FLORIDA GEORGIA GUAM IOWA IDAHO ILLINOIS INDIANA KANSAS KENTUCKY LOUISIANA MASSACHUSETTS MARYLAND MAINE MICHIGAN MINNESOTA MISSOURI MISSISSIPPI MONTANA NORTH CAROLINA NEBRASKA NEW HAMPSHIRE NEW JERSEY NEW MEXICO NEVADA NEW YORK OHIO OREGON PENNSYLVANIA PUERTO RICO RHODE ISLAND SOUTH CAROLINA TENNESSEE TEXAS UTAH VIRGINIA WASHINGTON WISCONSIN WEST VIRGINIA WYOMING
 

Important Notes Download National Dataset: dbf   |   xls    |   Data dictionary (PDF)

NORTH CAROLINA

County

NAAQS

92

93

94

95

96

97

98

99

00

01

02

03

04

05

06

07

08

09

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

Cabarrus Co

8-Hour Ozone (1997)-NAAQS revoked

W

W

W

W

W

W

W

W

W

W

Cabarrus Co

8-Hour Ozone (2008)

P

P

P

Catawba Co

PM-2.5 (1997)

W

W

W

W

W

W

Chatham Co

8-Hour Ozone (1997)-NAAQS revoked

P

P

P

Davidson Co

1-Hour Ozone (1979)-NAAQS revoked

W

Davidson Co

PM-2.5 (1997)

W

W

W

W

W

W

Davie Co

1-Hour Ozone (1979)-NAAQS revoked

P

Durham Co

1-Hour Ozone (1979)-NAAQS revoked

W

W

Durham Co

8-Hour Ozone (1997)-NAAQS revoked

W

W

W

Durham Co

Carbon Monoxide (1971)

W

W

W

Edgecombe Co

8-Hour Ozone (1997)-NAAQS revoked

W

W

W

Forsyth Co

1-Hour Ozone (1979)-NAAQS revoked

W

Forsyth Co

Carbon Monoxide (1971)

W

W

Franklin Co

8-Hour Ozone (1997)-NAAQS revoked

W

W

W

Gaston Co

1-Hour Ozone (1979)-NAAQS revoked

W

W

W

Gaston Co

8-Hour Ozone (1997)-NAAQS revoked

W

W

W

W

W

W

W

W

W

W

Gaston Co

8-Hour Ozone (2008)

P

P

P

Granville Co

1-Hour Ozone (1979)-NAAQS revoked

P

P

Granville Co

8-Hour Ozone (1997)-NAAQS revoked

W

W

W

Guilford Co

1-Hour Ozone (1979)-NAAQS revoked

W

Guilford Co

PM-2.5 (1997)

W

W

W

W

W

W

Haywood Co

8-Hour Ozone (1997)-NAAQS revoked

P

P

P

P

P

P

Iredell Co

8-Hour Ozone (1997)-NAAQS revoked

P

P

P

P

P

P

P

P

P

P

Iredell Co

8-Hour Ozone (2008)

P

P

P

Johnston Co

8-Hour Ozone (1997)-NAAQS revoked

W

W

W

Lincoln Co

8-Hour Ozone (1997)-NAAQS revoked

W

W

W

W

W

W

W

W

W

W

Lincoln Co

8-Hour Ozone (2008)

P

P

P

Mecklenburg Co

1-Hour Ozone (1979)-NAAQS revoked

W

W

W

Mecklenburg Co

8-Hour Ozone (1997)-NAAQS revoked

W

W

W

W

W

W

W

W

W

W

Mecklenburg Co

8-Hour Ozone (2008)

W

W

W

Mecklenburg Co

Carbon Monoxide (1971)

W

W

W

Nash Co

8-Hour Ozone (1997)-NAAQS revoked

W

W

W

Orange Co

8-Hour Ozone (1997)-NAAQS revoked

W

W

W

Person Co

8-Hour Ozone (1997)-NAAQS revoked

W

W

W

Rowan Co

8-Hour Ozone (1997)-NAAQS revoked

W

W

W

W

W

W

W

W

W

W

Rowan Co

8-Hour Ozone (2008)

P

P

P

Swain Co

8-Hour Ozone (1997)-NAAQS revoked

P

P

P

P

P

P

Union Co

8-Hour Ozone (1997)-NAAQS revoked

W

W

W

W

W

W

W

W

W

W

Union Co

8-Hour Ozone (2008)

P

P

P

Wake Co

1-Hour Ozone (1979)-NAAQS revoked

W

W

Wake Co

8-Hour Ozone (1997)-NAAQS revoked

W

W

W

Wake Co

Carbon Monoxide (1971)

W

W

W

Important Notes

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