The US Environmental Protection Agency (EPA) released a report suggesting that biodiesel use can reduce emissions of particulate matter by 47%when compared to petroleum diesel in unmodified diesel engines. The report, a compilation of 39 separate studies, shows a 67% reduction in unburned hydrocarbons and a 48% reduction in carbon monoxide with pure biodiesel.
Moreover, according to the US National Biodiesel Board, new diesel after-treatment technology will be capable of reducing nitrogen oxide emissions by more than 90% in the near future.
Source
www.oleoline.com vom 2003-03-28.
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