2003 Almanac (page 60) Table 2-5 Largest Stationary Sources of NOx Statewide Oxides of Nitrogen (NOx) Air Basin Facility Name City NOx (Tons/Year) Mojave Desert Cemex-California Cement Apple Valley 4639.91 Mojave Desert Riverside Cement Co. Oro Grande 4315.37 Mojave Desert Cal Portland Cement Co. Mojave 3278.9 San Francisco Bay Area Martinez Refining Company Martinez 3186.7 San Francisco Bay Area Exxon Mobil Refining And Supply Benicia 2927.4 North Central Coast Duke Energy Moss Landing 2830.92 San Francisco Bay Area Chevron Products Co. Richmond 2312.4 Mojave Desert Mitsubishi Cement Lucerne Valley 2244.77 San Francisco Bay Area "Ultramar, Inc. Avon Refinery" Martinez 2239.4 Mojave Desert "IMC Chemicals, Inc." Trona 1947.73 Facility totals are the most recent available data. Some facilities may have reduced or increased emissions since these data were collected. These changes will be reflected in subsequent almanacs. "The list of facilities does not include military bases, landfills, or airports."