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Pennsylvania

Beaver County

HIGH OZONE DAYS
Ozone Grade: F
Weighted Average: 12.7
Orange Ozone Days: 35
Red Ozone Days: 2
Purple Ozone Days: 0
PARTICLE POLLUTION - 24 Hour
Grade: F
Weighted Average: 4.7
Orange Particle Days: 14
Red Particle Days: 0
Purple Particle Days: 0
PARTICLE POLLUTION - Annual
Grade: Fail
Design Value 16.5
GROUPS AT RISK
Pediatric Asthma: 3,252
Adult Asthma: 12,443
Chronic Bronchitis: 5,029
Emphysema: 2,818
Cardiovascular Disease: 56,593
Diabetes: 12,516
Total Population: 173,074
Population Under 18: 35,777
Population 65 & Over: 31,630
American Lung Association State of the Air: 2009NOTES

1. The Weighted Average was derived by adding the three years of individual level data (2005-2007), multiplying the sums of each level by the assigned standard weights ( i.e. 1=orange, 1.5=red, 2.0=purple and 2.5=maroon) and calculating the average.
a. Asterisk (*) indicates incomplete monitoring data for all three years. Therefore, those counties are excluded from the grade analysis or received an Incomplete.
b.  A dash (-) indicates that data on that particular pollutant is not collected in that county.
c. Grades are as follows: A=0.0, B=0.3-0.9, C=1.0-2.0, D=2.1-3.2, F=3.3+.

2. The Design Value is the calculated concentration of a pollutant based on the form of the National Ambient Air Quality Standard, and is used by EPA to determine whether the air quality in a county meets the standard. The source for the Design Values is EPA, communication from the Office of Air Quality Planning & Standards, Mark Schmidt, October 31, 2007.

More about Methodology.