California Air Resources Board 2004 Almanac (web)								
Chapter 4	South Coast Directly Emitted PM2.5 Emission Trends				Table 4-5			
"Directly Emitted PM2.5 Emission Trends (tons/day, annual average)"								
Emission Source	1975	1980	1985	1990	1995	2000	2005	2010
All Sources	118	108	110	120	106	104	106	107
Stationary Sources	51	32	21	22	14	13	13	14
Area-wide Sources	35	40	48	59	59	60	61	63
On-Road Mobile	11	13	19	17	14	13	13	13
   Gasoline Vehicles	6	5	5	6	6	7	8	9
   Diesel Vehicles	5	9	14	11	8	6	5	4
Other Mobile	22	23	22	23	18	19	18	17