California Air Resources Board 2004 Almanac (web) Chapter 2 Largest Stationary Sources of NOx Statewide Table 2-6 Oxides of Nitrogen (NOx) Air Basin Facility Name City Tons/Year Mojave Desert TXI Riverside Cement Company Oro Grande 4496 Mojave Desert Cemex - Black Mountain Quarry Apple Valley 4483 San Francisco Bay Area Mirant Delta Pittsburg 3459 Mojave Desert California Portland Cement Co. Mojave 3026 San Francisco Bay Area Shell Martinez Refinery Martinez 2898 San Francisco Bay Area Tesoro Refining And Marketing Martinez 2307 San Francisco Bay Area Valero Refining Company Benicia 2289 Mojave Desert Mitsubishi Cement 2000 Lucerne Valley 2245 San Francisco Bay Area Chevron Products Company Richmond 2063 Mojave Desert "IMC Chemicals, Inc." Trona 1948