California Air Resources Board 2004 Almanac (web)								
Chapter 4	Sacramento Valley Directly Emitted PM10  Emission Trends				Table 4-41			
"Directly Emitted PM10 Emission Trends (tons/day, annual average)"								
Emission Source	1975	1980	1985	1990	1995	2000	2005	2010
All Sources	194	202	209	223	215	223	231	238
Stationary Sources	25	19	17	21	17	17	17	19
Area-wide Sources	160	172	181	189	188	197	204	210
On-Road Mobile	3	4	5	5	4	4	4	4
   Gasoline Vehicles	1	1	1	2	2	2	2	3
   Diesel Vehicles	2	2	3	4	2	2	1	1
Other Mobile	7	8	7	7	6	6	6	6