Ozone Alerts! 1991-Present
Year May June July Aug Sept Total
2011            
2010   28th     12, 19, 23, 28   5
2009   24, 25, 26, 27, 30 1, 7, 11, 16  13, 25    11
2008 None None 18, 28, 31 1, 2, 4, 5, 26 None 8
2007 None None None 2, 3, 14, 15, 16   5
2006 25th 12, 15, 29, 30 1, 2,
17, 19, 20, 21		 24 None 12
2005 None 21, 22, 24, 25, 26 30 1, 2, 4, 10 3, 4, 5 13
2004 None None 15, 21, 22 None None 3
2003 None None 2,3,30 6,7,23,26,27 None 8
2002 None 24, 25 9, 10, 25 6, 9, 31 None 8
2001 None 26 11, 25 3, 4, 6, 7 14 8
2000 None None 17 1, 2, 3, 4, 15, 16, 23, 24, 25, 26 2, 3, 4, 8 15
1999 None None 26 3, 9, 10, 11, 12, 17, 18, 19, 25, 26, 27, 29, 30, 31 1, 2 17
1998 None None 15, 17 21, 22 1, 2, 4, 5, 6, 7 10
1997 None None None None None None
1996 None 13, 14, 18, 20 3, 14 14 None 7
1995 None 21, 22, 6, 25, 28, 29, 30, 31 1, Oct 11 10
1994 None 20, 21, 22, 29 None None None 4
1993 None None 21, 28, 29, 30 14, 17, 18, 20, 21, 28 None 10
1992 None 19, 25, 1, 28 None None 4
1991 None None 30 14, 15, 26 None 4

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