Chapter 4	San Francisco Bay Area Air Basin 						Table 4-16			
"NOx Emission Trends (tons/day, annual average)"										
Emission Source	1975	1980	1985	1990	1995	2000	2005	2010	2015	2020
All Sources	943	918	821	797	720	622	496	423	348	301
Stationary Sources	229	205	134	124	107	83	49	49	51	53
Area-wide Sources	13	14	15	19	20	19	20	20	21	21
On-Road Mobile	542	540	500	453	385	312	234	181	124	88
   Gasoline Vehicles	516	493	427	356	296	215	128	86	59	42
   Diesel Vehicles	26	47	73	97	89	98	106	94	64	46
Other Mobile	159	159	172	201	208	207	194	174	153	138
   Gasoline Fuel	10	10	11	13	14	14	13	11	10	10
   Diesel Fuel	123	121	130	154	158	154	142	120	97	77
   Other Fuel	27	28	31	34	37	39	39	43	46	51