Chapter 4	San Francisco Bay Area Air Basin 						Table 4-23			
"NOx Emission Trends (tons/day, annual average)"										
Emission Source	1975	1980	1985	1990	1995	2000	2005	2010	2015	2020
All Sources	975	968	905	876	741	632	535	446	363	316
Stationary Sources	231	208	137	132	103	83	67	70	74	77
Area-wide Sources	14	15	16	19	20	20	20	20	20	21
On-Road Mobile	552	570	566	524	437	352	286	217	146	101
   Gasoline Vehicles	497	478	417	348	294	208	155	114	78	54
   Diesel Vehicles	55	92	149	176	142	144	131	103	68	47
Other Mobile	178	175	186	201	182	177	163	139	123	117
   Gasoline Fuel	8	8	9	11	12	13	13	10	10	10
   Diesel Fuel	136	133	143	155	142	138	124	101	86	79
   Other Fuel	33	33	34	35	28	26	27	27	28	29