The News
Study questions ethanol's clean air claims
LOS ANGELES, April 18 (UPI) -- A U.S. study concluded increased ethanol use could lead to more ground-level ozone that could pose a greater health risk than gasoline.
The study, published Wednesday in the online edition of Environmental Science and Technology, shows a high blend of ethanol "poses an equal or greater risk to public health than gasoline, which already causes significant health damage," The Los Angeles Times reported.
Study author Mark Z. Jacobson, an associate professor of civil and environmental engineering at Stanford University, said an increase in the use of a form of ethanol called E85 would lead to a 9 percent increase in ozone-related deaths in Greater Los Angeles and a 4 percent increase nationally by 2020.

The Research
Read the research behind this story in the journal Environmental Science and Technology.