California Air Resources Board 2008 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	114	6%	1%
Area-wide Sources	38	2%	0%
On-Road Mobile	1031	56%	9%
   Gasoline Vehicles	981	53%	8%
   Diesel Vehicles	50	3%	0%
Other Mobile	653	36%	5%
   Gasoline Fuel	427	23%	4%
   Diesel Fuel	166	9%	1%
   Other Fuel	60	3%	0%
Natural Sources	0	0%	0%
Total	1836	100%	15%
Total Statewide	12060