California Air Resources Board 2007 Almanac (web) Chapter 5 Statewide Table 5-11 Chromium (Hexavalent) Emissions Source tons/year Percent State Stationary Sources 0.22 19% Area-wide Sources 0.01 1% On-Road Mobile 0.16 14% Gasoline Vehicles 0.15 13% Diesel Vehicles < .01 1% Other Mobile 0.77 67% Gasoline Fuel < .01 0% Diesel Fuel < .01 0% Other Fuel 0.77 67% Natural Sources 0.00 0% Total Statewide 1.16 100%