California Air Resources Board 2006 Almanac (web)											
Chapter 4	Sacramento Valley Air Basin						Table 4-53				
"Sacramento Valley Air Basin Emissions (tons/day, annual average)"											
Pollutant	1975	1980	1985	1990	1995	2000	2005	2010	2015	2020	
NOX	334	360	356	388	341	300	249	203	165	140	
ROG	448	438	408	362	299	243	205	185	175	171	
PM10	197	203	209	221	212	219	226	232	238	243	
PM25	82	81	83	89	82	84	86	87	89	90	
CO	2933	2942	2811	2475	1860	1439	1182	991	864	787