2006 Almanac (page 20) Table 1-5						
Ambient Air Quality Standards						
Pollutant	Averaging Time	California Standards	Federal Standards			
		Concentration	Primary	Secondary		
Ozone (O3)	1 Hour	0.09 ppm (180 ug/m3)	--	--		
	8 Hour	--	0.08 ppm (157 ug/m3)	Same as Primary Standard		
Respirable Particulate Matter (PM10)	24 Hour	50 ug/m3	150 ug/m3	Same as Primary Standard		
	Annual Arithmetic Mean	20 ug/m3	50 ug/m3			
Fine Particulate Matter (PM2.5)	24 Hour	No Separate State Standard	65 ug/m3	Same as Primary Standard		
	Annual Arithmetic Mean	12 ug/m3	15 ug/m3			
Carbon Monoxide (CO)	8 Hour	9.0 ppm (10 mg/m3)	9 ppm (10 mg/m3)	None		
	1 Hour	20 ppm (23 mg/m3)	35 ppm (40 mg/me)			
	8 Hour (Lake Tahoe)	6 ppm (7 mg/m3)	--	--		
Nitrogen Dioxide (NO2)	Annual Arithmetic Mean	--	0.053 ppm (100 ug/me)	Same as Primary Standard		
	1 Hour	0.25 ppm (470 ug/m3)	--			
Sulfur Dioxide (SO2)	Annual Arithmetic Mean	--	0.030 ppm (80 ug/m3)	--		
	24 Hour	0.04 ppm (105 ug/m3)	0.14 ppm (365 ug/m3)	--		
	3 Hour	--	--	0.5 ppm (1300 ug/m3)		
	1 Hour	0.25 ppm (655 ug/m3)	--	--		
Lead	30 Day Average	1.5 ug/m3	--	--		
	Calendar Quarter	--	1.5 ug/m3	Same as Primary Standard