High Relative Abundance of Biofuel Sourced Ethanol in Precipitation in the US and Brazil Determined Using Compound Specific Stable Carbon Isotopes

Megumi S Shimizu1, J. David D Felix2, Matthew Casas3, Gene B Avery Jr3, Robert J Kieber1, Ralph N Mead1, Joan D Willey1 and Chad Lane4, (1)University of North Carolina Wilmington, Department of Chemistry and Biochemistry, Wilmington, NC, United States, (2)Texas A & M University Corpus Christi, Corpus Christi, United States, (3)University of North Carolina Wilmington, Chemistry and Biochemistry, Wilmington, NC, United States, (4)University of North Carolina at Wilmington, Earth and Ocean Sciences, Wilmington, NC, United States