California Air Resources Board 2006 Almanac (web)										
Chapter 4	South Coast Air Basin						Table 4-3			
"NOx Emission Trends (tons/day, annual average)"										
Emission Source	1975	1980	1985	1990	1995	2000	2005	2010	2015	2020
All Sources	1712	1600	1694	1553	1315	1183	957	756	586	496
Stationary Sources	304	263	227	169	120	104	58	57	56	56
Area-wide Sources	31	34	34	28	26	26	28	22	21	22
On-Road Mobile	1026	954	1094	1000	869	751	581	426	282	196
   Gasoline Vehicles	921	768	788	700	594	432	270	186	129	92
   Diesel Vehicles	105	186	306	299	275	319	311	239	153	103
Other Mobile	351	349	339	356	300	301	290	250	227	223
   Gasoline Fuel	20	21	22	24	22	25	26	22	19	19
   Diesel Fuel	303	301	287	291	233	229	202	160	132	118
   Other Fuel	28	28	29	40	45	48	62	68	76	86