Study Proves Propane Buses Substantially Lower in NOx Emissions

A recent study from West Virginia University examines school bus tailpipe emissions. This excerpt from Propane Education & Research Council President Tucker Perkins explains.WV Emissions Study 8.20.18

For fleets asking if propane autogas can substantially reduce vehicle emissions at the tailpipe, whether we’re talking greenhouse gases (GHGs), nitrogen oxide (NOx), or particulate matter (PM), the answer is “yes.” And technological advancements are only making it cleaner.

New research from the West Virginia University Center for Alternative Fuels, Engines and Emissions (CAFEE) looked at tailpipe emissions in school buses. The school transportation industry is ground-zero when it comes to vehicle safety because of the precious cargo it transports every day: children. That vehicle safety includes the emissions and particulate matter coming from the tailpipe, which can be hazardous to the health of students riding those buses. The West Virginia University study found an even greater emissions disparity during real-world use of school buses powered by propane autogas and diesel than what previous laboratory tests had found. When the university compared the in-use emissions levels of a 2015 model-year propane autogas school bus with a 2014 diesel school bus using two distinct test routes, the study found that the propane autogas school bus NOx emissions were 96 percent less than the comparable diesel model.

Read the full article here.