Particle Pollution - 24 Hour Learn More Grade: D How is my grade calculated? Weighted Average: 3.0 Change Since 2000:
2.5
3.0
fewer days this year
Particle Pollution - Annual Learn More Grade: Pass How is my grade calculated? Design Value 8.2 Change Since 2000:
9.8
8.2
µg/m3
Groups At Risk Learn More Total Population: 554,996 Risks to the population Pediatric Asthma: 11,452 Risks to people with Asthma Adult Asthma: 48,118 Risks to people with Asthma COPD: 25,475 Risks to people with COPD Cardiovascular Disease: 32,946 Risks to people with Cardiovascular Disease Diabetes: 34,923Risks to people with Diabetes Children Under 18: 136,795 Risks to children and teens Adults 65 & Over: 63,438 Risks to older adults Poverty Estimate: 59,829Risks to people with low incomes

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  • Ranked 163 for high ozone days out of 220 metropolitan areas
  • Ranked 28 for 24-hour particle pollution out of 220 metropolitan areas
  • Ranked 139 for annual particle pollution out of 220 metropolitan areas

Compare Your Air



High Ozone Days Learn More
Change Since

This County:

Washington, OR

Other counties with monitors in this metropolitan area

There are no other counties in this metropolitan area

  • Benton, OR
  • Clackamas, OR
  • Clark, WA
  • Columbia, OR
  • Cowlitz, WA
  • Linn, OR
  • Marion, OR
  • Multnomah, OR
  • Polk, OR
  • Skamania, WA
  • Washington, OR
  • Yamhill, OR

ABCDFDNCINC
Particle Pollution - 24 Hour Learn More
Change Since

This County:

Washington, OR

Other counties with monitors in this metropolitan area

There are no other counties in this metropolitan area

  • Benton, OR
  • Clackamas, OR
  • Clark, WA
  • Columbia, OR
  • Cowlitz, WA
  • Linn, OR
  • Marion, OR
  • Multnomah, OR
  • Polk, OR
  • Skamania, WA
  • Washington, OR
  • Yamhill, OR

ABCDFDNCINC
Particle Pollution - Annual Learn More
Change Since

This County:

Washington, OR

Other counties with monitors in this metropolitan area

There are no other counties in this metropolitan area

  • Benton, OR
  • Clackamas, OR
  • Clark, WA
  • Columbia, OR
  • Cowlitz, WA
  • Linn, OR
  • Marion, OR
  • Multnomah, OR
  • Polk, OR
  • Skamania, WA
  • Washington, OR
  • Yamhill, OR

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.

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