Montana

If you live in Silver Bow County, the air you breathe may put your health at risk.

Ozone

Particle Pollution 24-hour

Particle Pollution Annual

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High Ozone Days
Ozone Grade: DNC How is my grade calculated?
Weighted Average: DNC No Data
Particle Pollution - 24 Hour
Grade: F How is my grade calculated?
Weighted Average: 5.3 Change Since 2000:
2.2
5.3
fewer days this year
Particle Pollution - Annual
Grade: Pass How is my grade calculated?
Design Value 9.9 Change Since 2001:
7.8
9.9
µg/m3
Groups At Risk
Total Population: 34,200 Risks to the population
Pediatric Asthma: 495 Risks to people with Asthma
Adult Asthma: 2,466 Risks to people with Asthma
Chronic Bronchitis: 1,211 Risks to people with Chronic Bronchitis
Emphysema: 576 Risks to people with Emphysema
Cardiovascular Disease: 9,573 Risks to people with Cardiovascular Disease
Diabetes: 1,961Risks to people with Diabetes
Children Under 18: 7,184 Risks to children and teens
Adults 65 & Over: 5,614 Risks to older adults
Poverty Estimate: 5,864Risks 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.