District of Columbia

If you live in District of Columbia, the air you breathe may put your health at risk.

Ozone

Particle Pollution 24-hour

Particle Pollution Annual

You can make a difference in the air that you breathe.

Tell your friends about the air where you live.

High Ozone Days
Ozone Grade: F How is my grade calculated?
Weighted Average 7.5 Change Since 2009:
10.5
7.5
fewer days this year
Particle Pollution - 24 Hour
Grade: C How is my grade calculated?
Weighted Average: 1.0 Change Since 2000:
19.0
1.0
fewer days this year
Particle Pollution - Annual
Grade: Pass How is my grade calculated?
Design Value 9.8 Change Since 2000:
16.4
9.8
µg/m3
Groups At Risk
Total Population: 646,449 Risks to the population
Pediatric Asthma: 15,056 Risks to people with Asthma
Adult Asthma: 63,739 Risks to people with Asthma
COPD: 30,439 Risks to people with COPD
Cardiovascular Disease: 40,460 Risks to people with Cardiovascular Disease
Diabetes: 40,019Risks to people with Diabetes
Children Under 18: 111,474 Risks to children and teens
Adults 65 & Over: 73,422 Risks to older adults
Poverty Estimate: 115,096Risks to people with low incomes

The air you breathe needs your support.

You can make a difference in the air that you breathe.

Tell your friends about the air where you live.

  • Ranked 22 for high ozone days out of 220 metropolitan areas
  • Ranked 45 for 24-hour particle pollution out of 220 metropolitan areas
  • Ranked 46 for annual particle pollution out of 220 metropolitan areas

Compare Your Air



High Ozone Days Learn More
Change Since

This County:

Washington, DC

Other counties with monitors in this metropolitan area

There are no other counties in this metropolitan area

  • Alexandria City, VA
  • Anne Arundel, MD
  • Arlington, VA
  • Baltimore, MD
  • Baltimore City, MD
  • Berkeley, WV
  • Calvert, MD
  • Carroll, MD
  • Charles, MD
  • Clarke, VA
  • Culpeper, VA
  • Dorchester, MD
  • Fairfax, VA
  • Fairfax City, VA
  • Falls Church City, VA
  • Fauquier, VA
  • Franklin, PA
  • Frederick, VA
  • Frederick, MD
  • Fredericksburg City, VA
  • Hampshire, WV
  • Harford, MD
  • Howard, MD
  • Jefferson, WV
  • Loudoun, VA
  • Manassas City, VA
  • Manassas Park City, VA
  • Montgomery, MD
  • Prince George's, MD
  • Prince William, VA
  • Queen Anne's, MD
  • Rappahannock, VA
  • Spotsylvania, VA
  • St. Mary's, MD
  • Stafford, VA
  • Talbot, MD
  • Warren, VA
  • Washington, MD
  • Winchester City, VA

ABCDFDNCINC
Particle Pollution - 24 Hour Learn More
Change Since

This County:

District of Columbia, DC

Other counties with monitors in this metropolitan area

There are no other counties in this metropolitan area

ABCDFDNCINC
Particle Pollution - Annual Learn More
Change Since

This County:

District of Columbia, DC

Other counties with monitors in this metropolitan area

There are no other counties in this metropolitan area

PASSFAILDNCINC
Groups At Risk
Total Population: Risks to the population
Pediatric Asthma: Risks to people with Asthma
Adult Asthma: Risks to people with Asthma
COPD: Risks to people with COPD
Cardiovascular Disease: Risks to people with Cardiovascular Disease
Diabetes: Risks to people with Diabetes
Children Under 18: Risks to children and teens
Adults 65 & Over: Risks to older adults
Poverty Estimate: Risks to people with low incomes

More about Methodology.