California Air Resources Board 2004 Almanac (web)				Table 5-46
Chapter 5	"San Joaquin Valley 1,3 Butadiene Emissions"			
"San Joaquin Valley - 1,3-Butadiene"				
Emissions Source	tons/year	Percent Air Basin	Percent State	
Stationary Sources	3	1%	0%	
Area-wide Sources	134	30%	4%	
On-Road Mobile	162	36%	5%	
   Gasoline Vehicles	157	35%	5%	
   Diesel Vehicles	4	1%	0%	
Other Mobile	138	31%	4%	
Natural Sources	10	2%	0%	
Total	447	100%	14%	
Total Statewide	3228