TOP POLLUTERS

The South Coast Air Quality Management District recently released its annual list of companies emitting the largest volume of two pollutants--reactive hydrocarbons and oxides of nitrogen. This list covers emissions during 1987.

These are produced by incomplete combustion of gasoline, and from fumes from fuels, paints and industrial and dry-cleaning solvents. They are a prime ingredient in formation of ozone, the invisible, lung-irritating gas that is the main component of smog.

REACTIVE HYDROCARBONS

EMISSIONS COMPANY (TONS/YR.) 1.Chevron USA, El Segundo 1719 2.Shell Oil, Wilmington Complex 1285 3.Texaco, Wilmington 1210 4.ARCO, Carson 1089 5.General Motors, Van Nuys 671 6.UNOCAL, Wilmington 669 7.Kimstock, Santa Ana 576 8.Mobil Oil, Torrance 492 9.Avery Label Sys., Monrovia 429 10.Continental Can, Van Nuys 408 11.Shell Western E & P, Huntington Beach (1) 377 12.Catalina Yachts, Woodland Hills 368 13.B.P. John Furniture, Santa Ana 363 14.Reynolds Metals, Torrance 354 15.Northrop, Aircraft Division, Hawthrone 337 16.Fasson, Div. Avery Int., Rancho Cucamonga 306 17.Golden West Refinery, Santa Fe Springs 296 18.So. Pacific Pipelines Inc., Bloomington 296 19.Sun Exploration & Production, Newhall (2) 295 20.Cal. Expanded Metal, Industry 294

(1) Formerly Shell California Production (2) Formerly Sun Production

OXIDES OF NITROGEN

These are toxic gases formed by fuel combustion in motor vehicles, power plants and industrial boilers. They combine with hydrocarbons to form ozone, the most intractable pollutant in the Los Angeles basin.

EMISSIONS COMPANY (TONS/YR.) 1. Chevron USA, El Segundo 4945 2. ARCO Refinery, Carson 2871 3. Southern California 2647 Gas Company, Blythe* 4. Southern California 2593 Edison, Redondo Beach 5. Cal. Portland Cement, 2557 Div. Calmat, Colton 6. Texaco, Wilmington 2385 7. Sol Cal. Edison-Alamitos, 2377 Long Beach 8. L.A. City DWP-Haynes, 2145 Long Beach 9. UNOCAL, Wilmington 1990 10. Mobil Oil, Torrance 1773 11. Shell Oil, Wilmington Complex 1711 12. Shell Western E & P, 1657 Huntington Beach** 13. So. Cal. Edison, El Segundo 1278 14. Sun Exploration & Production, 1193 Newhall*** 15. So. Cal. Edison, 915 Huntington Beach 16. Union Pacific Resources, 826 Wilmington**** 17. L.A. City DWP-Scattergood, 809 Playa del Rey 18. Golden West Refinery, 802 Santa Fe Springs 19. So. Cal. Edison, Etiwanda 771 20. Owens-Illinois, Vernon 715

* Located in the Southeast Desert Air Basin ** Formerly Shell California Production *** Formerly Sun Production **** Formerly Champlin Petroleum Source: South Coast Air Quality Management District