California Air Resources Board 2009 Almanac (web) Appendix A Mojave Desert Air Basin Table A-8 Oxides of Nitrogen (NOx) Facility Name City Tons per Year Cemex Quarry Apple Valley 4955 TXI Riverside Cement Company Oro Grande 4446 California Portland Cement Mojave 3126 Mitsubishi Cement Lucerne Valley 2789 Searles Valley Minerals Trona 1982 PG&E Topock Compressor Station Needles 1261 National Cement Lebec 998 Lehigh Southwest Cement Monolith 776 Southern California Gas Co Needles 764 AFG Industries Victorville 600 Reactive Organic Gases (ROG) Facility Name City Tons per Year Cemex Quarry Apple Valley 194 Directly Emitted Particulate Matter (PM10) Facility Name City Tons per Year Service Rock Products Palmdale 3054 U.S. Borax Boron 1156 Mitsubishi Cement Lucerne Valley 754 TXI Riverside Cement Company Oro Grande 728 Cemex Quarry Apple Valley 721 National Cement Lebec 462 Granite Construction - Littlerock Facility Palmdale 432 Searles Valley Minerals Trona 356 California Portland Cement Mojave 352 Chevron Mining - Mountain Pass Mine Mountain Pass 263 Directly Emitted Particulate Matter (PM2.5) Facility Name City Tons per Year Mitsubishi Cement Lucerne Valley 596 Service Rock Products Palmdale 477 TXI Riverside Cement Company Oro Grande 362 Cemex Quarry Apple Valley 338 National Cement Lebec 298 U.S. Borax Boron 229 Searles Valley Minerals Trona 222 California Portland Cement Mojave 162 Lehigh Southwest Cement Monolith 134 Granite Construction - Littlerock Facility Palmdale 126