California Air Resources Board 2006 Almanac (web)										
Chapter 4	San Joaquin Valley Air Basin 						Table 4-38			
"NOx Emission Trends (tons/day, annual average)"										
Emission Source	1975	1980	1985	1990	1995	2000	2005	2010	2015	2020
All Sources	658	810	800	820	695	579	481	402	337	297
Stationary Sources	232	308	296	283	215	158	128	124	126	127
Area-wide Sources	26	26	26	25	25	24	24	24	23	23
On-Road Mobile	219	252	292	320	288	239	196	145	98	68
   Gasoline Vehicles	169	171	168	174	161	121	83	58	40	29
   Diesel Vehicles	50	81	124	145	127	118	113	87	57	39
Other Mobile	181	223	185	192	168	157	134	109	90	78
   Gasoline Fuel	4	5	5	6	6	6	7	7	6	6
   Diesel Fuel	169	211	174	182	157	146	121	97	78	66
   Other Fuel	8	8	5	5	5	6	6	6	6	6