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EPA researchers find widespread use of nano cerium diesel fuel additives could have measurable impact on air quality

October 21, 2014

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Predicted surface-level concentrations of cerium due to use of nCe diesel fuel additives. Credit: ACS, Erdakos et al. Click to enlarge.

Results of a modeling study by researchers from the US Environmental Protection Agency (EPA) suggest that widespread use of nanoparticulate cerium (nCe) diesel fuel additives across the US would have a measurable effect on regional air quality.

The model calculations suggest modest decreases of average PM2.5 concentrations and relatively larger decreases in particulate elemental carbon (EC). On average, across the 14-day winter and summer periods modeled, the percent change in EC exceeds that of PM2.5 by a factor of 5 in urban areas. As EC is a short-lived climate forcer, the reduction in EC concentrations has potential policy implications.

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