Particle Pollution - 24 Hour Learn More Grade: F How is my grade calculated? Weighted Average: 38.0 Change Since 2000:
17.3
38.0
fewer days this year
Particle Pollution - Annual Learn More Grade: Fail How is my grade calculated? Design Value 15.7 Change Since 2000:
17.7
15.7
µg/m3
Groups At Risk Learn More Total Population: 525,491 Risks to the population Pediatric Asthma: 12,868 Risks to people with Asthma Adult Asthma: 33,197 Risks to people with Asthma COPD: 17,455 Risks to people with COPD Cardiovascular Disease: 25,308 Risks to people with Cardiovascular Disease Diabetes: 38,162Risks to people with Diabetes Children Under 18: 145,255 Risks to children and teens Adults 65 & Over: 61,652 Risks to older adults Poverty Estimate: 113,074Risks 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 8 for high ozone days out of 220 metropolitan areas
  • Ranked 4 for 24-hour particle pollution out of 220 metropolitan areas
  • Ranked 4 for annual particle pollution out of 220 metropolitan areas

Compare Your Air



High Ozone Days Learn More
Change Since

This County:

Stanislaus, CA

Other counties with monitors in this metropolitan area

There are no other counties in this metropolitan area

  • Merced, CA
  • Stanislaus, CA

ABCDFDNCINC
Particle Pollution - 24 Hour Learn More
Change Since

This County:

Stanislaus, CA

Other counties with monitors in this metropolitan area

There are no other counties in this metropolitan area

  • Merced, CA
  • Stanislaus, CA

ABCDFDNCINC
Particle Pollution - Annual Learn More
Change Since

This County:

Stanislaus, CA

Other counties with monitors in this metropolitan area

There are no other counties in this metropolitan area

  • Merced, CA
  • Stanislaus, 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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