Appendix A	Mojave Desert Air Basin - County: Riverside - MD					Table A-41														

OZONE (ppm)	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004
Peak 1-Hour Indicator	0.143	0.138	0.144	0.142	0.141	0.132	0.14	0.146	0.146										0.079	0.076
Peak 8-Hour Indicator	0.106	0.107	0.112	0.113	0.116	0.105	0.113	0.113	0.114										0.073	0.069
4th High 1-Hr. in 3 Yrs	0.11	0.14	0.147	0.147	0.14	0.131	0.13	0.13	0.131										0.074	0.075
Avg. of 4th High 8-Hr. in 3 Yrs	0.092	0.096	0.101	0.103	0.102	0.096	0.099	0.101	0.101										0.064	0.062
Maximum 1-Hr. Concentration	0.14	0.16	0.148	0.14	0.14	0.13	0.13	0.138	0.14										0.077	0.078
Max. 8-Hr. Concentration	0.102	0.105	0.127	0.105	0.117	0.102	0.115	0.115	0.108										0.071	0.067
Days Above State Standard	19	39	65	32	31	23	33	44	18										0	0
Days Above Nat. 1-Hr. Std.	3	3	10	4	2	1	6	7	1										0	0
Days Above Nat. 8-Hr. Std.	8	30	49	16	20	18	37	39	16										0	0

PM10 (ug/m3)	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004
Max. 24-Hr. Concentration (State)																				
Max. 24-Hr. Concentration (Nat)							112	242												
Annual Average (State)																				
Annual Average (Nat)																				
Calc Days Above State 24-Hr Std																				
Calc Days Above Nat 24-Hr Std																				

PM2.5 (ug/m3)	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004
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)	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004
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)	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004
Peak 1-Hr. Indicator																				
Max. 1-Hr. Concentration																				
Max. Annual Average																				

SULFUR DIOXIDE (ppm)	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004
Peak 1-Hr. Indicator																				
Max. Annual Average																				
Max. 24-Hr. Concentration