COMMENT: More evidence mounts for banning, not expanding, use of ethanol in US gasoline

Year-to-date ozone data from California are confirming the analysis put forth in this space last year.1 Click here to enlarge imageCalifornia's switch to ethanol from methyl tertiary butyl ether is a test of the relative merits of oxygenates used in reformulated gasoline (RFG). Through July 31, the ozone exceedances in California's South Coast Air Basini2 are twice the level of the prior 3 years' levels, as shown in Fig. 1. The maximum ozone concentration is up 22%. Exceedances of the 8 hr standard are also up, with the maximum concentration up 40%.If this were a drug test, it would be terminated after two patient fatalities.The first fatality occurred in 1995 when America...

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