2002 Almanac (page 253)  Table 5-24  2001 Emission Inventory by Compound			

"South Coast Air Basin - 1,3-Butadiene"			
Emissions Source	tons/year	Percent Air Basin	Percent State
Stationary Sources	5	0%	0%
Area-wide Sources	39	4%	1%
On-Road Mobile	715	69%	19%
   Gasoline Vehicles	707	68%	19%
   Diesel Vehicles	8	1%	<1%
Other Mobile	260	25%	7%
Natural Sources	17	2%	<1%
Total	1036	100%	28%
Total Statewide	3678