California Air Resources Board 2004 Almanac (web)								
Chapter 4	San Diego Directly Emitted PM10  Emission Trends				Table 4-30			
"Directly Emitted PM10 Emission Trends (tons/day, annual average)"								
Emission Source	1975	1980	1985	1990	1995	2000	2005	2010
All Sources	73	81	90	108	104	112	118	126
Stationary Sources	17	12	5	7	10	8	8	11
Area-wide Sources	47	60	73	88	84	92	99	104
On-Road Mobile	3	3	4	5	4	4	5	5
   Gasoline Vehicles	2	2	2	2	3	3	3	4
   Diesel Vehicles	1	1	2	3	2	1	1	1
Other Mobile	6	7	7	8	7	7	7	6