Healthier air due to the low emission zone

The low emission zone in Leipzig was established in March 2011, allowing only diesel vehicles of Euro4 and higher with few exceptions. The ban of older vehicles and subsequent modernization of the car fleet resulted in slightly ...

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 ...

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