2003 Almanac (page 172)  Table 4-27  Ozone Precursor Emission Trends and Forecasts - NOx								
San Diego Air Basin								

"NOx Emission Trends (tons/day, annual average)"								
Emission Source	1975	1980	1985	1990	1995	2000	2005	2010
All Sources	289	282	294	326	277	235	194	161
Stationary Sources	51	37	22	25	21	17	15	20
Area-wide Sources	3	3	3	3	3	3	3	3
On-Road Mobile	178	174	195	216	185	149	113	83
   Gasoline Vehicles	168	155	156	157	133	96	62	43
   Diesel Vehicles	10	19	39	59	52	52	51	40
Other Mobile	57	69	73	81	68	66	62	55