. Summary: at current levels of 15 to 20% in RFG MTBE is having very little if any effect in reducing SMOG MTBE is actually contributing to the SMOG problem MTBE is water soluble, leachable and is contaminating water supplies nationwide MTBE is degrades into TBF which is highly and acutely toxic MTBE is causing adverse health effects like increased rates in asthma, especially children, it cities where it is being used MTBE as a oxygenate, is serving no useful purpose to society except to line the pockets of a few chemical manufactures at the expense of the American public REFERENCES:1. Oxybusters – Internet2. CEH Newletter3. Sacramento Bee ...