2003 Almanac (page 282) Table 5-70 2002 Emission Inventory by Compound Sacramento Valley Air Basin - Chromium (Hexavalent) Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 0.16 83% 6% Area-wide Sources 0 0% 0 On-Road Mobile < .01 4% 0% Gasoline Vehicles < .01 4% 0% Diesel Vehicles < .01 0% 0% Other Mobile 0.03 13% 1% Natural Sources < .01 <0.1% <0.1% Total 0.19 100% 7% Total Statewide 2.56