OXYGENATES FOR THE FUTURE--CONCLUSION: OXYGENATE/HYDROCARBON SHIFT WILL REWRITE GASOLINE RECIPES

The passage of the amended Clean Air Act on November 15, 1990, established a permanent role for oxygenates in U.S. gasoline for the foreseeable future. This status for oxygenates was confirmed approximately a month later by analytical results from the first phase of the Auto/Oil Air Quality Improvement Research Program. In view of these events, this article, the second of a two part series, presents an estimate of oxygenate requirements for 1995 ozone and carbon monoxide attainment.