Federal and State Ground-level Ozone Exceedances
Sacramento Region

 
Data since 2004 are preliminary and will be replaced with official data as they become available.

Type  2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997
State
1-hour
Ozone
13 18 47 44 36 53 61 57 46 56 49 25
Federal
1-hour
Ozone
N/A N/A N/A 6 0 6 10 4 7 7 13 4
Federal
8-hour
Ozone
9 18 43 36 24 43 49 46 37 48 Standard not
in effect*



* There was no Sacramento region federal 8-hour average ozone standard reporting prior to 1999.
Note: As of June 15, 2005, the Federal 1-hour Ozone Standard no longer applies.