Posted: Oct 9, 2012 6:38 AM by Associated Press
TUCSON, Ariz. (AP) - Researchers at the University of Arizona have won a $1.4 million grant to study the occupational and environmental health effects of underground mining equipment that runs on biodiesel-blend fuels.
The university says mining operators are shifting from diesel to biodiesel-blend fuels in a bid to lower exposure to pollutants.
Biodiesel is made from vegetable oil or animal fat and can be added to diesel as a blend or used on its own.
The National Institute for Occupational Safety and Health awarded the grant to the university's public health college and mining department.
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