BIODIESEL MAY NOT INCREASE NITROGEN OXIDES EMISSIONS, DOE LAB FINDS

Extensive testing at an Energy Department laboratory contradicts the widely held belief that burning biodiesel produces more nitrogen oxide (NOx) air emissions than traditional diesel, a top lab official reported May 9 at a Society of Automotive Engineers (SAE) conference in Washington, D.C. Air regulators and environmental groups have been slow to embrace biodiesel, a renewable fuel that substantially lowers hydrocarbon and particulate matter emissions, because of concern over increases in NOx emissions, a major contributor to ground-level ozone. An...