M-T-B-E: TRADING CLEANER AIR FOR FOULER WATER?
The Clean Air act requires reduced ozone and carbon monoxide in many urban areas. California, with nine of the ten most air polluted cities in the country, has some of the strictest air quality standards. To meet the standards, oil companies have reformulated gasoline using an additive called MTBE. MTBE has been used in gasoline throughout the nation for a number of years, but for the past year all gasoline sold in Cailfornia contains it. Now, MTBE, which the Environmental Protection Agency classifies as a possible carcinogen, is showing up in water, leading some critics to ask whether the state is sacrificing its water supply for cleaner air. Cheryl Colopy reports.
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