California Air Resources Board 2006 Almanac (web)										
Chapter 4	Sacramento Valley Air Basin 						Table 4-63			
"CO Emission Trends (tons/day, annual average)"										
Emission Source	1975	1980	1985	1990	1995	2000	2005	2010	2015	2020
All Sources	2933	2942	2811	2475	1860	1439	1182	991	864	787
Stationary Sources	28	28	16	51	39	41	48	50	54	56
Area-wide Sources	252	265	275	286	283	282	284	286	288	292
On-Road Mobile	2450	2389	2246	1813	1225	822	576	398	268	187
   Gasoline Vehicles	2442	2377	2228	1793	1210	808	565	389	260	180
   Diesel Vehicles	8	12	17	20	16	13	12	9	8	7
Other Mobile	204	261	274	326	313	294	273	257	254	251
   Gasoline Fuel	147	192	215	262	255	240	221	205	202	201
   Diesel Fuel	36	44	37	42	36	31	28	26	25	23
   Other Fuel	21	25	22	22	22	23	25	26	27	27