Montana

If you live in Yellowstone County, the air you breathe needs your support.

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: DNC How is my grade calculated?
Weighted Average: DNC No Data
Particle Pollution - 24 Hour
Grade: INC How is my grade calculated?
Weighted Average: INC No Data
Particle Pollution - Annual
Grade: INC How is my grade calculated?
Design Value INC No Data
Groups At Risk
Total Population: 147,972 Risks to the population
Pediatric Asthma: 2,414 Risks to people with Asthma
Adult Asthma: 10,306 Risks to people with Asthma
Chronic Bronchitis: 4,959 Risks to people with Chronic Bronchitis
Emphysema: 2,252 Risks to people with Emphysema
Cardiovascular Disease: 38,371 Risks to people with Cardiovascular Disease
Diabetes: 7,800Risks to people with Diabetes
Children Under 18: 35,040 Risks to children and teens
Adults 65 & Over: 20,868 Risks to older adults
Poverty Estimate: 18,671Risks 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.


Compare Your Air



High Ozone Days Learn More
Change Since

This County:

Yellowstone, MT

Other counties with monitors in this metropolitan area

There are no other counties in this metropolitan area

What is my length? 1

    ABCDFDNCINC
    Particle Pollution - 24 Hour Learn More
    Change Since

    This County:

    Yellowstone, MT

    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:

      Yellowstone, MT

      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
        Chronic Bronchitis: Risks to people with Chronic Bronchitis
        Emphysema: Risks to people with Emphysema
        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

        Notes:

        (1) INC indicates incomplete monitoring data for all three years. Therefore, those counties are excluded from the grade analysis.
        (2) DNC indicates that there is no monitor collecting data in the county.

        More about Methodology.