Appendix A North Coast Air Basin - County: Sonoma - NC Table A-60 OZONE (ppm) 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 Peak 8-Hour Indicator (State) 0.07 0.074 0.072 0.075 0.074 0.082 0.091 0.097 0.093 0.081 0.071 0.071 0.07 0.065 0.064 0.065 Avg. of 4th High 8-Hr. in 3 Yrs (Nat) 0.066 0.069 0.069 0.072 0.077 0.082 0.076 0.069 0.063 0.062 0.061 0.056 0.055 0.055 Peak 1-Hour Indicator (State) 0.085 0.088 0.088 0.088 0.086 0.091 0.104 0.11 0.106 0.093 0.083 0.082 0.082 0.077 0.075 0.073 4th High 1-Hr. in 3 Yrs2 0.08 0.09 0.09 0.09 0.09 0.09 0.11 0.11 0.11 0.1 0.08 0.08 0.08 0.08 0.08 0.07 Max. 8-Hr. Concentration 0.072 0.073 0.08 0.09 0.071 0.091 0.106 0.087 0.077 0.073 0.068 0.08 0.077 0.06 0.06 0.067 Maximum 1-Hr. Concentration 0.09 0.09 0.1 0.1 0.08 0.1 0.13 0.1 0.09 0.09 0.08 0.09 0.09 0.08 0.07 0.07 Days Above State 8-Hr. Std. 2 3 3 4 2 9 11 9 1 1 0 1 1 0 0 0 Days Above Nat. 8-Hr. Std. 0 0 2 2 0 4 7 6 1 0 0 1 1 0 0 0 Days Above State 1-Hr. Std. 0 0 1 1 0 2 7 4 0 0 0 0 0 0 0 0 PM10 (ug/m3) 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 Max. 24-Hr. Concentration (State) 62 85 266 78 58 53 57 43 40 54 33 74 45 63 37 45 33 39 30 43 Max. 24-Hr. Concentration (Nat) 62 85 266 78 58 53 57 43 40 54 32 71 44 59 36 45 33 37 30 41 Max. Annual Average (State) 23.8 24.8 20.7 18.4 16.4 16.5 16.6 19.4 12.6 15.6 15.1 15.7 14.1 16.2 13.9 Max. Annual Average (Nat) 21.3 24.7 23.8 25.1 21.4 20.3 18.4 13.7 16.5 16.5 16 18.3 14.7 15 15 14.8 15.2 13.9 15.6 13.4 Calc Days Above State 24-Hr Std 22 23 12 13 0 5 0 18 0 0 0 0 0 0 0 Calc Days Above Nat 24-Hr Std 0 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PM25 (ug/m3) 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 Max. 24-Hr. Concentration (State) Max. 24-Hr. Concentration (Nat) 98th Percentile of 24-Hr Conc. Annual Average (State) Avg. of Qtrly. Means (Nat) CARBON MONOXIDE (ppm) 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 Peak 8-Hr. Indicator Max. 1-Hr. Concentration Max. 8-Hr. Concentration Days Above State 8-Hr. Std. Days Above Nat. 8-Hr. Std. NITROGEN DIOXIDE (ppm) 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 Peak 1-Hr. Indicator Max. 1-Hr. Concentration Max. Annual Average (Nat) SULFUR DIOXIDE (ppm) 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 Peak 1-Hr. Indicator Max. Annual Average Max. 24-Hr. Concentration