California Air Resources Board 2007 Almanac (web)			
Chapter 5	San Diego		Table 5-57
San Diego - Benzene			
Emissions Source	tons/year	Percent Air Basin	Percent State
Stationary Sources	39	5%	0%
Area-wide Sources	4	0%	0%
On-Road Mobile	488	56%	4%
   Gasoline Vehicles	462	53%	4%
   Diesel Vehicles	27	3%	0%
Other Mobile	338	39%	3%
   Gasoline Fuel	248	29%	2%
   Diesel Fuel	61	7%	1%
   Other Fuel	29	3%	0%
Natural Sources	0	0%	0%
Total	869	100%	7%
Total Statewide	12060