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Pennsylvania
Bureau of Air Quality

Principal Pollutants

Ozone Summary Reports

Daily Maximums

Use the menu below to get a daily ozone maximum report, or get the most recent report.

Ozone Standard Exceedances

Pennsylvania and the federal government have set concentration standards for ground-level ozone and the other principal pollutants to protect the public's health and to prevent environmental damage. Use the menu below to download a summary of Daily Maximum values above the NAAQS Ozone Standard in Pennsylvania (PDF)

 

 

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NAAQS Ozone Standards

2015 Standard
8-Hour = 70 ppb

2008 Standard
8-Hour = 75 ppb

1997 Standard
1-Hour = 125 ppb
8-Hour = 85 ppb