California Air Resources Board 2004 Almanac (web)								
Chapter 4	San Joaquin Valley  NOx Emission Trends				Table 4-19			
"NOx Emission Trends (tons/day, annual average)"								
Emission Source	1975	1980	1985	1990	1995	2000	2005	2010
All Sources	672	835	836	806	682	570	477	403
Stationary Sources	263	350	348	285	216	165	139	140
Area-wide Sources	13	13	13	12	12	11	11	11
On-Road Mobile	219	252	292	320	288	239	196	145
   Gasoline Vehicles	169	171	168	174	161	121	83	58
   Diesel Vehicles	50	81	124	145	127	118	113	87
Other Mobile	177	220	182	190	166	155	131	107