Particle Pollution - 24 Hour Learn More Grade: D How is my grade calculated? Weighted Average: 2.7 Change Since 2000:
8.2
2.7
fewer days this year
Particle Pollution - Annual Learn More Grade: Pass How is my grade calculated? Design Value 10.0 Change Since 2000:
12.3
10.0
µg/m3
Groups At Risk Learn More Total Population: 1,578,891 Risks to the population Pediatric Asthma: 30,402 Risks to people with Asthma Adult Asthma: 107,985 Risks to people with Asthma COPD: 56,443 Risks to people with COPD Cardiovascular Disease: 81,383 Risks to people with Cardiovascular Disease Diabetes: 123,422Risks to people with Diabetes Children Under 18: 343,177 Risks to children and teens Adults 65 & Over: 191,838 Risks to older adults Poverty Estimate: 201,303Risks to people with low incomes

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

Tell your friends about the air where you live.

  • Ranked 36 for high ozone days out of 220 metropolitan areas
  • Ranked 6 for 24-hour particle pollution out of 220 metropolitan areas
  • Ranked 7 for annual particle pollution out of 220 metropolitan areas

Compare Your Air



High Ozone Days Learn More
Change Since

This County:

Alameda, CA

Other counties with monitors in this metropolitan area

There are no other counties in this metropolitan area

  • Alameda, CA
  • Contra Costa, CA
  • Marin, CA
  • Napa, CA
  • San Benito, CA
  • San Francisco, CA
  • San Joaquin, CA
  • San Mateo, CA
  • Santa Clara, CA
  • Santa Cruz, CA
  • Solano, CA
  • Sonoma, CA

ABCDFDNCINC
Particle Pollution - 24 Hour Learn More
Change Since

This County:

Alameda, CA

Other counties with monitors in this metropolitan area

There are no other counties in this metropolitan area

  • Alameda, CA
  • Contra Costa, CA
  • Marin, CA
  • Napa, CA
  • San Benito, CA
  • San Francisco, CA
  • San Joaquin, CA
  • San Mateo, CA
  • Santa Clara, CA
  • Santa Cruz, CA
  • Solano, CA
  • Sonoma, CA

ABCDFDNCINC
Particle Pollution - Annual Learn More
Change Since

This County:

Alameda, CA

Other counties with monitors in this metropolitan area

There are no other counties in this metropolitan area

  • Alameda, CA
  • Contra Costa, CA
  • Marin, CA
  • Napa, CA
  • San Benito, CA
  • San Francisco, CA
  • San Joaquin, CA
  • San Mateo, CA
  • Santa Clara, CA
  • Santa Cruz, CA
  • Solano, CA
  • Sonoma, CA

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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