octane rating

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Octane is the antiknock rating of petroleum fuels, i.e., an indicator of the efficiency of combustion. Pure iso-octane has a rating of 100, and commercially marketed gasoline is rated as a percentage of this. The harmful effects of gasoline sniffing increase with the octane rating, especially in places where tetra-ethyl lead additive, a powerful neurotoxin, is still used.

Subjects: Public Health and Epidemiology.

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