California Air Resources Board 2006 Almanac (web)											
Chapter 4	South Coast Air Basin						Table 4-1				
"South Coast Air Basin Emissions (tons/day, annual average)"											
Pollutant	1975	1980	1985	1990	1995	2000	2005	2010	2015	2020	
NOX	1712	1600	1694	1553	1315	1183	957	756	586	496	
ROG	2642	2270	2245	1760	1319	1056	684	567	517	492	
PM10	228	239	261	347	330	325	276	278	284	292	
PM25	119	110	108	125	108	107	97	97	98	100	
CO	16137	13368	13099	10309	7547	5451	3838	2943	2395	2056