Ethanol is non-toxic, water soluble and is the most harmless and biodegradable
component of gasoline. In fact, ethanol occurs naturally during the fermentation
of organic matter.
When gasoline is spilled
on land or in water, ethanol is the first component to quickly, safely
and naturally degrade. More important, the presence of ethanol in gasoline
means the reduced presence of other more toxic components such as benzene—so
gasoline spills are less threatening to the environment.