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: 10.5 Change Since 1996:
32.7
10.5
fewer days this year
Particle Pollution - 24 Hour
Grade: C How is my grade calculated?
Weighted Average: 1.5 Change Since 2000:
19.0
1.5
fewer days this year
Particle Pollution - Annual
Grade: Pass How is my grade calculated?
Design Value 10.6 Change Since 2000:
16.4
10.6
µg/m3
Groups At Risk
Total Population: 617,996 Risks to the population
Pediatric Asthma: 19,330 Risks to people with Asthma
Adult Asthma: 51,553 Risks to people with Asthma
COPD: 22,841 Risks to people with COPD
Cardiovascular Disease: 156,697 Risks to people with Cardiovascular Disease
Diabetes: 44,516Risks to people with Diabetes
Children Under 18: 105,334 Risks to children and teens
Adults 65 & Over: 70,179 Risks to older adults
Poverty Estimate: 111,906Risks 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 9 for high ozone days out of 277 metropolitan areas
  • Ranked 29 for 24-hour particle pollution out of 277 metropolitan areas
  • Ranked 65 for annual particle pollution out of 277 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

What is my length? 33
  • Alexandria city, VA
  • Anne Arundel, MD
  • Arlington, VA
  • Baltimore, MD
  • Baltimore city, MD
  • Calvert, MD
  • Carroll, MD
  • Charles, MD
  • Clarke, VA
  • Fairfax, VA
  • Fairfax city, VA
  • Falls Church city, VA
  • Fauquier, VA
  • Frederick, MD
  • Frederick, VA
  • 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
  • Spotsylvania, VA
  • St. Mary's, MD
  • Stafford, VA
  • Warren, VA
  • 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.