California Air Resources Board 2004 Almanac (web)								
Chapter 4	San Francisco Bay Area Directly Emitted PM10 Emission Trends				Table 4-14			
"Directly Emitted PM10 Emission Trends (tons/day, annual average)"								
Emission Source	1975	1980	1985	1990	1995	2000	2005	2010
All Sources	183	184	197	196	184	195	205	208
Stationary Sources	36	24	21	17	18	15	17	17
Area-wide Sources	128	139	152	153	145	159	168	170
On-Road Mobile	7	9	12	12	9	9	10	10
   Gasoline Vehicles	5	4	4	5	5	6	7	8
   Diesel Vehicles	2	5	7	7	4	3	3	2
Other Mobile	12	12	12	14	11	11	11	10