A cornerstone of U.S. environmental policy has been the reduction of harmful tailpipe emissions from cars and trucks. Thanks to EPA regulations of mobile sources, air pollutants have been reduced by millions of tons in the urban environment. Several EPA fuel regulations have concerned octane. Octane is a gasoline additive that is needed for the proper functioning of modern engines. Octane sources have taken many forms throughout the years, both renewable and petroleum-based. They include lead, methyl tertiary butyl ether (MTBE), benzene, toluene, ethyl-benzene and xylene (BTEX), and ethanol (a biofuel). As adverse health and environmental consequences have been discovered for lead and petroleum-based octane providers, they have been removed from the fuel supply or decreased. Today, there are two primary sources of octane used in the U.S. gasoline supply, the BTEX complex (a petroleum refining product commonly referred to as gasoline aromatics), and ethanol.
This web page is marked up with Schema.org microdata. Much of the necessary microdata is embedded within the HTML that creates the display you see above. The data that shows below is formatted for machine-reading and rounds out the complete descriptive set for this resource. Want more info about all of this? Go here. You can also view the complete dataset for this resource the way a machine sees it here .
Title: Fact Sheet: A Brief History of Octane in Gasoline, From Lead to Ethanol
Publication date 2016-03-30
Publication Year 2016
Environmental and Energy Study Institute
North America / United States
Resource provided by IssueLab