In Washington, new study finds that ethanol blends reduce particulate matter (PM) coming out of the tailpipe, which in turn reduces overall toxic emissions. The study was conducted by the University of California Riverside and the University of Wisconsin, Madison and commissioned by the Urban Air Initiative. It was published in Elsevier’s journal ‘Science of the Total Environment’.
The study found that on a per mile basis, the reduction of PM due to increasing amounts of ethanol was highly correlated with reducing health concerns. According to researchers, the E30 and E78 fuels had a consistent and dramatic decline in emissions that cause inflammation and oxidative stress, two key contributors to diseases such as asthma and heart disease. In addition, the higher ethanol blends reduced the emissions of carbon monoxide, NOx and total hydrocarbons.