Researchers describe the “where” and “when” of life cycle emissions from gasoline and ethanol in the US
Green Car Congress
OCTOBER 11, 2012
60% of ground-level ozone (O 3 ) precursors, 6% of fine particulate matter (PM 2.5 ), and 22% of greenhouse gases (GHGs) emitted. GREET models five groups of air pollutant emissions: NO x ; non-methane volatile organic compounds (VOCs); primary particulate matter less than 2.5 Associated tailpipe emissions alone account for 40?60%
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