2003 Almanac (page 281)  Table 5-68  2002 Emission Inventory by Compound			

"Sacramento Valley Air Basin - 1,3-Butadiene"			
Emissions Source	tons/year	Percent Air Basin	Percent State
Stationary Sources	< 1	0%	0%
Area-wide Sources	58	20%	2%
On-Road Mobile	120	41%	4%
   Gasoline Vehicles	117	41%	4%
   Diesel Vehicles	2	1%	0%
Other Mobile	102	35%	3%
Natural Sources	8	3%	0%
Total	289	100%	9%
Total Statewide	3180