The rat studies above were done at more than 1 million times the concentration of exposure. The report makes NO conclusions regarding the effect of MTBE on humans. Further it does not cite the lack of effect in animals at anywhere near the concentrations of the human exposure. It calls for more studies. Removal of MTBE from gasoline is more cost effective than remediation steps of cleaning air and water.
All costs anticipated are in the billiopns of dollars .
I believe this must be done by vigorous action reducing underground tank leakage. Other methods for the production of reformulated fuels - replacement with ethanol, and other materials will just generate new uncertainties. Kennesaw State University 1000 Chastain Rd.