West Virginia
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High Ozone Days Particle Pollution Groups At Risk  
County
Grade
Wgt.
Avg.
Orange
Days
Red
Days
Purple
Days
Berkeley C 1.0 3 0 0
Brooke - - - - -
Cabell C 1.0 3 0 0
Greenbrier A 0.0 0 0 0
Hancock B 0.3 1 0 0
Harrison - - - - -
Kanawha C 1.0 3 0 0
Marion - - - - -
Marshall - - - - -
Mercer - - - - -
Monongalia B 0.3 1 0 0
Ohio D 2.3 7 0 0
Raleigh - - - - -
Summers - - - - -
Wood C 1.3 4 0 0
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American Lung Association State of the Air: 2008 NOTES

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

More about Methodology.