California Air Resources Board 2009 Almanac (web)			
Chapter 5	San Francisco Bay Area		Table 5-35
San Francisco Bay Area - Benzene			
Emissions Source	tons/year	Percent Air Basin	Percent State
Stationary Sources	137	8%	1%
Area-wide Sources	33	2%	0%
On-Road Mobile	880	54%	8%
   Gasoline Vehicles	834	51%	8%
   Diesel Vehicles	46	3%	0%
Other Mobile	583	36%	5%
   Gasoline Fuel	375	23%	3%
   Diesel Fuel	146	9%	1%
   Other Fuel	63	4%	1%
Natural Sources	0	0%	0%
Total	1634	100%	15%
Total Statewide	10794