Mojave Desert Air Basin		

Oxides of Nitrogen (NOx)		
Facility Name	City	Tons per Year
Cemex-California Cement	Apple Valley	4640
Riverside Cement Co.	Oro Grande	4315
Cal Portland Cement Co.	Mojave	3279
Mitsubishi Cement	Lucerne Valley	2245
"IMC Chemicals, Inc."	Trona	1948
Southern California Gas Co.	Blythe	1897
National Cement Co	Lebec	1549
Reliant Energy	Daggett	1426
Calaveras Cement Co.	Monolith	1234
PG&E Topock Compressor Station	Needles	1140

Reactive Organic Gases (ROG)		
Facility Name	City	Tons per Year
Southern California Gas Co.	Blythe	120

Directly Emitted Particulate Matter (PM10)		
Facility Name	City	Tons per Year
National Cement Co	Lebec	756
Mitsubishi Cement	Lucerne Valley	553
Cemex-California Cement	Apple Valley	544
U.S. Borax	Boron	539
Calaveras Cement Co.	Monolith	406
"IMC Chemicals, Inc."	Trona	374
Riverside Cement Co.	Oro Grande	312
Cal Portland Cement Co.	Mojave	297
Antelope Valley Aggregate Inc	Littlerock	112

Directly Emitted Particulate Matter (PM2.5)		
Facility Name	City	Tons per Year
Mitsubishi Cement	Lucerne Valley	377
Cemex-California Cement	Apple Valley	360
National Cement Co	Lebec	241
"IMC Chemicals, Inc."	Trona	212
Riverside Cement Co.	Oro Grande	191
U.S. Borax	Boron	157
Calaveras Cement Co.	Monolith	152
Cal Portland Cement Co.	Mojave	103