Nonattainment Status for Each County by Year for Maryland Including Previous 1-Hour Ozone Counties

As of December 14, 2012
Listed by County, Pollutant, then Area

Select a State:

AK | AL | AR | AZ | CA | CO | CT | DC | DE | FL | GA | GU | IA | ID | IL | IN | KS | KY | LA | MA | MD | ME | MI | MN |
MO | MS | MT | NC | NE | NH | NJ | NM | NV | NY | OH | OR | PA | PR | RI | SC | TN | TX | UT | VA | WA | WI | WV | WY |

Important Notes

County

Pollutant

AreaName

Nonattainment in Year

Redesignation
to Maintenance

Classification

Cty NA
Whole/
Part

Population
(2010)

FIPS
State/
Cnty

MARYLAND

Anne Arundel Co

1-Hr Ozone

Baltimore, MD

/ /

Severe 15

Whole

537,656

24/003

Anne Arundel Co

8-Hr Ozone 1997

Baltimore, MD

/ /

Serious

Whole

537,656

24/003

Anne Arundel Co

8-Hr Ozone 2008

Baltimore, MD

/ /

Moderate

Whole

537,656

24/003

Anne Arundel Co

PM-2.5 1997

Baltimore, MD

/ /

Whole

537,656

24/003

Baltimore (City)

1-Hr Ozone

Baltimore, MD

/ /

Severe 15

Whole

620,961

24/510

Baltimore (City)

8-Hr Ozone 1997

Baltimore, MD

/ /

Serious

Whole

620,961

24/510

Baltimore (City)

8-Hr Ozone 2008

Baltimore, MD

/ /

Moderate

Whole

620,961

24/510

Baltimore (City)

Baltimore, MD

12/15/1995

Moderate <= 12.7ppm

Part

15,455

24/510

Baltimore (City)

PM-2.5 1997

Baltimore, MD

/ /

Whole

620,961

24/510

Baltimore Co

1-Hr Ozone

Baltimore, MD

/ /

Severe 15

Whole

805,029

24/005

Baltimore Co

8-Hr Ozone 1997

Baltimore, MD

/ /

Serious

Whole

805,029

24/005

Baltimore Co

8-Hr Ozone 2008

Baltimore, MD

/ /

Moderate

Whole

805,029

24/005

Baltimore Co

PM-2.5 1997

Baltimore, MD

/ /

Whole

805,029

24/005

Calvert Co

1-Hr Ozone

Washington, DC-MD-VA

/ /

Severe 15

Whole

88,737

24/009

Calvert Co

8-Hr Ozone 1997

Washington, DC-MD-VA

/ /

Moderate

Whole

88,737

24/009

Calvert Co

8-Hr Ozone 2008

Washington, DC-MD-VA

/ /

Marginal

Whole

88,737

24/009

Carroll Co

1-Hr Ozone

Baltimore, MD

/ /

Severe 15

Whole

167,134

24/013

Carroll Co

8-Hr Ozone 1997

Baltimore, MD

/ /

Serious

Whole

167,134

24/013

Carroll Co

8-Hr Ozone 2008

Baltimore, MD

/ /

Moderate

Whole

167,134

24/013

Carroll Co

PM-2.5 1997

Baltimore, MD

/ /

Whole

167,134

24/013

Cecil Co

1-Hr Ozone

Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD

/ /

Severe 15

Whole

101,108

24/015

Cecil Co

8-Hr Ozone 1997

Philadelphia-Wilmin-Atlantic City, PA-NJ-MD-DE

/ /

Moderate

Whole

101,108

24/015

Cecil Co

8-Hr Ozone 2008

Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE

/ /

Marginal

Whole

101,108

24/015

Charles Co

1-Hr Ozone

Washington, DC-MD-VA

/ /

Severe 15

Whole

146,551

24/017

Charles Co

8-Hr Ozone 1997

Washington, DC-MD-VA

/ /

Moderate

Whole

146,551

24/017

Charles Co

8-Hr Ozone 2008

Washington, DC-MD-VA

/ /

Marginal

Whole

146,551

24/017

Charles Co

PM-2.5 1997

Washington, DC-MD-VA

/ /

Whole

146,551

24/017

Frederick Co

1-Hr Ozone

Washington, DC-MD-VA

/ /

Severe 15

Whole

233,385

24/021

Frederick Co

8-Hr Ozone 1997

Washington, DC-MD-VA

/ /

Moderate

Whole

233,385

24/021

Frederick Co

8-Hr Ozone 2008

Washington, DC-MD-VA

/ /

Marginal

Whole

233,385

24/021

Frederick Co

PM-2.5 1997

Washington, DC-MD-VA

/ /

Whole

233,385

24/021

Harford Co

1-Hr Ozone

Baltimore, MD

/ /

Severe 15

Whole

244,826

24/025

Harford Co

8-Hr Ozone 1997

Baltimore, MD

/ /

Serious

Whole

244,826

24/025

Harford Co

8-Hr Ozone 2008

Baltimore, MD

/ /

Moderate

Whole

244,826

24/025

Harford Co

PM-2.5 1997

Baltimore, MD

/ /

Whole

244,826

24/025

Howard Co

1-Hr Ozone

Baltimore, MD

/ /

Severe 15

Whole

287,085

24/027

Howard Co

8-Hr Ozone 1997

Baltimore, MD

/ /

Serious

Whole

287,085

24/027

Howard Co

8-Hr Ozone 2008

Baltimore, MD

/ /

Moderate

Whole

287,085

24/027

Howard Co

PM-2.5 1997

Baltimore, MD

/ /

Whole

287,085

24/027

Kent Co

1-Hr Ozone

Kent & Queen Anne's Co.s, MD

11/22/2004

Marginal

Whole

20,197

24/029

Kent Co

8-Hr Ozone 1997

Kent and Queen Anne's Cos, MD

01/22/2007

Marginal

Whole

20,197

24/029

Montgomery Co

1-Hr Ozone

Washington, DC-MD-VA

/ /

Severe 15

Whole

971,777

24/031

Montgomery Co

8-Hr Ozone 1997

Washington, DC-MD-VA

/ /

Moderate

Whole

971,777

24/031

Montgomery Co

8-Hr Ozone 2008

Washington, DC-MD-VA

/ /

Marginal

Whole

971,777

24/031

Montgomery Co

Washington, DC-MD-VA

03/15/1996

Moderate <= 12.7ppm

Part

474,416

24/031

Montgomery Co

PM-2.5 1997

Washington, DC-MD-VA

/ /

Whole

971,777

24/031

Prince George's Co

1-Hr Ozone

Washington, DC-MD-VA

/ /

Severe 15

Whole

863,420

24/033

Prince George's Co

8-Hr Ozone 1997

Washington, DC-MD-VA

/ /

Moderate

Whole

863,420

24/033

Prince George's Co

8-Hr Ozone 2008

Washington, DC-MD-VA

/ /

Marginal

Whole

863,420

24/033

Prince George's Co

Washington, DC-MD-VA

03/15/1996

Moderate <= 12.7ppm

Part

369,359

24/033

Prince George's Co

PM-2.5 1997

Washington, DC-MD-VA

/ /

Whole

863,420

24/033

Queen Annes Co

1-Hr Ozone

Kent & Queen Anne's Co.s, MD

11/22/2004

Marginal

Whole

47,798

24/035

Queen Annes Co

8-Hr Ozone 1997

Kent and Queen Anne's Cos, MD

01/22/2007

Marginal

Whole

47,798

24/035

Washington Co

PM-2.5 1997

Martinsburg, WV-Hagerstown, MD

/ /

Whole

147,430

24/043

Important Notes

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