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Technical analysis to inform decisions regarding the use of biodiesel. Will be used by state air quality managers, federal fuel regulators and Congress to judge the environmental value and effectiveness of increased use of biodiesel.

Description:

Existing emissions data from heavy-duty diesel engines was assembled into a database. Statistical regression analysis was used to correlate biodiesel concentration with changes in emissions of regulated and unregulated pollutants. The report concludes that biodiesel produces small increases in NOx emissions, but considerable reductions in other pollutants.

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