Ozone Alerts! 1991-Present
Year May June July Aug Sept
2009   24, 25, 26, 27, 30 1, 7, 11, 16  13, 25   
2008 None None 18, 28, 31 1, 2, 4, 5, 26 None
2007 None None None 2, 3, 14, 15, 16  
2006 25th 12, 15, 29, 30 1, 2,
17, 19, 20, 21		 24 None
2005 None 21, 22, 24, 25, 26 30 1, 2, 4, 10 3, 4, 5
2004 None None 15, 21, 22 None None
2003 None None 2,3,30 6,7,23,26,27 None
2002 None 24, 25 9, 10, 25 6, 9, 31 None
2001 None 26 11, 25 3, 4, 6, 7 14
2000 None None 17 1, 2, 3, 4, 15, 16, 23, 24, 25, 26 2, 3, 4, 8
1999 None None 26 3, 9, 10, 11, 12, 17, 18, 19, 25, 26, 27, 29, 30, 31 1, 2
1998 None None 15, 17 21, 22 1, 2, 4, 5, 6, 7
1997 None None None None None
1996 None 13, 14, 18, 20 3, 14 14 None
1995 None 21, 22, 6, 25, 28, 29, 30, 31 1, Oct 11
1994 None 20, 21, 22, 29 None None None
1993 None None 21, 28, 29, 30 14, 17, 18, 20, 21, 28 None
1992 None 19, 25, 1, 28 None None
1991 None None 30 14, 15, 26 None

Ozone Alerts Exceedances of the 8hr standard Exceedances of the 1hr standard Highest 8hr Avg. 4th Highest 8hr Avg.
1991-Present 1999-Present 1991-Present 1999-Present 1994-Present
DEQ Ozone Monitoring Data
Current Ozone Readings This Month's 8hr Avg Readings Last Month's 8hr Avg Readings This Month's 1hr. Avg Readings  Last Month's 1hr Avg Readings