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	27	28	25	30	29	31	31	32	33	35
Stationary Sources	12	10	4	4	6	6	6	6	7	7
Area-wide Sources	8	10	12	14	14	15	16	17	18	19
On-Road Mobile	3	3	4	5	4	4	4	4	4	4
   Gasoline Vehicles	1	1	1	2	2	2	2	2	3	3
   Diesel Vehicles	1	2	3	3	2	2	2	1	1	1
Other Mobile	5	6	6	7	6	6	6	5	5	5
   Gasoline Fuel	0	0	0	1	1	1	1	1	1	1
   Diesel Fuel	3	3	4	4	3	3	3	2	1	1
   Other Fuel	2	2	2	2	2	2	2	2	3	3