Abstract
Citing concerns about the environment, low farm commodity prices, and U.S. dependence on imported oil, Clinton Administration officials last week unveiled plans to phase out use of the gasoline additive methyl tert -butyl ether (MTBE) and simultaneously boost sales of ethanol. The Administration is asking Congress to change a Clean Air Act provision that sets the benchmark for oxygen content in reformulated gasoline. This move would eliminate or significantly reduce MTBE use in gasoline. The addition of MTBE increases the oxygen content of gasoline, making the fuel burn cleaner. Use of MTBE has helped improve air quality in a number of cities. However, MTBE is increasingly being found in drinking water supplies, primarily because of leaking underground and aboveground gasoline storage tanks. The substance makes water smell and taste foul even at very low concentrations. EPA classifies MTBE as a possible human carcinogen based solely on inhalation studies. The Administration wants ...
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