Monday, July 17, 2017

Tiny particles increase in air with ethanol-to-gasoline switch

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. The research team also found when drivers switched back to ethanol because prices had gone down, the concentration of ultrafine particles also went down.

from Geochemistry News -- ScienceDaily http://ift.tt/2t8olXX
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