California Air Resources Board 2006 Almanac (web)										
Chapter 4	San Diego Air Basin 						Table 4-46			
"Directly Emitted PM2.5 Emission Trends (tons/day, annual average)"										
Emission Source	1975	1980	1985	1990	1995	2000	2005	2010	2015	2020
All Sources	29	31	30	35	33	36	38	40	42	45
Stationary Sources	11	9	3	4	6	6	7	8	9	10
Area-wide Sources	11	14	17	20	19	21	22	23	24	26
On-Road Mobile	2	2	3	4	3	3	3	3	3	3
   Gasoline Vehicles	1	1	1	1	1	2	2	2	2	3
   Diesel Vehicles	0	1	2	3	2	1	1	1	1	1
Other Mobile	5	6	6	7	6	6	6	6	6	6
   Gasoline Fuel	0	0	1	1	1	1	1	1	1	1
   Diesel Fuel	3	4	4	4	3	3	3	2	2	2
   Other Fuel	2	2	2	2	2	2	2	3	3	4