Chapter 4	Sacramento Valley Air Basin 						Table 4-55			
"NOx Emission Trends (tons/day, annual average)"										
Emission Source	1975	1980	1985	1990	1995	2000	2005	2010	2015	2020
All Sources	335	351	342	382	354	318	290	250	200	164
Stationary Sources	38	32	31	45	46	42	38	39	39	38
Area-wide Sources	9	9	9	10	9	9	9	9	9	9
On-Road Mobile	186	194	202	215	196	167	154	127	88	62
   Gasoline Vehicles	156	158	151	144	123	88	59	42	30	22
   Diesel Vehicles	30	35	51	72	74	79	96	85	58	40
Other Mobile	102	116	100	112	102	100	88	75	64	54
   Gasoline Fuel	3	4	5	6	5	5	7	7	7	6
   Diesel Fuel	96	108	92	103	93	90	77	64	53	43
   Other Fuel	3	4	4	3	4	5	4	4	4	5