California Air Resources Board 2006 Almanac (web) Chapter 5 San Joaquin Valley Table 5-48 San Joaquin Valley - Chromium (Hexavalent) Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 0.13 62% 8% Area-wide Sources < .01 4% 0% On-Road Mobile 0.01 7% 1% Gasoline Vehicles 0.01 7% 1% Diesel Vehicles < .01 0% 0% Other Mobile 0.06 27% 4% Gasoline Fuel 0.01 6% 1% Diesel Fuel < .01 1% 0% Other Fuel 0.04 20% 3% Natural Sources 0 0% 0% Total 0.20 100% 13% Total Statewide 1.52