fuel and emission control system changes include:Limits on gasoline volatility
• Limits on gasoline volatility
Volatility is a measure of how easily a liquid evaporates. As described
earlier, some toxics such as benzene are present in gasoline and get into
the air when gasoline evaporates. Limits on gasoline volatility have been
imposed over the last several years to control evaporative emissions of both
hydrocarbon and toxic compounds (most air toxics are hydrocarbons so
programs designed to reduce hydrocarbon emissions also reduce air toxics).
Volatility is a measure of how easily a liquid evaporates. As described
earlier, some toxics such as benzene are present in gasoline and get into
the air when gasoline evaporates. Limits on gasoline volatility have been
imposed over the last several years to control evaporative emissions of both
hydrocarbon and toxic compounds (most air toxics are hydrocarbons so
programs designed to reduce hydrocarbon emissions also reduce air toxics).
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