Brazilian Researchers Determine Amount of Ultra-fine Particles In Air Falls With More Ethanol Use

“In Brazil, the concentration of ultrafine particles less than 50 nanometers in diameter rose by one-third in the air of São Paulo, Brazil, when higher ethanol prices induced drivers to switch from ethanol to gasoline, according to a new study by a Northwestern University chemist, a National University of Singapore economist and two University of São Paulo physicists. ”
— Meghan Sapp, Biofuels Digest

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