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Federal and State standards for ozone (obtained September 2019).
| Standard for Ozone | 1-h Average | 8-h Average (Year Established) |
|---|---|---|
| National Ambient Air Quality Standard | 120 ppb (1979) | 70 ppb (2015) 75 ppb (2008) 80 ppb (1997) |
| California Ambient Air Quality Standard | 90 ppb | - |
