Montana

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

Ozone

Particle Pollution 24-hour

Particle Pollution Annual

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High Ozone Days
Ozone Grade: INC How is my grade calculated?
Weighted Average: INC 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: 1,743 Risks to the population
Pediatric Asthma: 25 Risks to people with Asthma
Adult Asthma: 125 Risks to people with Asthma
Chronic Bronchitis: 67 Risks to people with Chronic Bronchitis
Emphysema: 37 Risks to people with Emphysema
Cardiovascular Disease: 574 Risks to people with Cardiovascular Disease
Diabetes: 120Risks to people with Diabetes
Children Under 18: 363 Risks to children and teens
Adults 65 & Over: 396 Risks to older adults
Poverty Estimate: 245Risks 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.