California Air Resources Board 2004 Almanac (web)								
Chapter 4	San Diego CO  Emission Trends				Table 4-33			
"CO Emission Trends (tons/day, annual average)"								
Emission Source	1975	1980	1985	1990	1995	2000	2005	2010
All Sources	3332	3068	2965	2501	1756	1317	986	801
Stationary Sources	30	29	28	28	26	39	34	51
Area-wide Sources	56	62	68	72	64	66	68	70
On-Road Mobile	3059	2740	2586	2067	1360	930	626	438
   Gasoline Vehicles	3056	2735	2575	2052	1347	918	616	429
   Diesel Vehicles	3	6	11	15	13	11	11	9
Other Mobile	188	236	282	334	306	282	257	243