Emissions and Emission Controls

Health Impacts Research

Another aspect of the emissions research at ORNL focuses on Health Impacts.  This effort concentrates on analyzing exhaust for Mobile Source Air Toxics (MSATs) or other unregulated exhaust species that have the potential to harm human health.  MSATs are a group of chemical species defined by the U.S. EPA that may pose risk to humans; formaldehyde, acetaldehyde, acrolein, 1,3-butadiene, benzene, and toluene are some example species.  Engines operated with new combustion modes and alternative fuels are studied for MSAT emissions to determine insure that the advanced technologies being developed pose no additional risk to humans.

A large part of the Health Impacts research effort at ORNL focuses on particulate matter (PM) which is also defined as an MSAT by the U.S. EPA.  Extensive research is conducted on PM to character the size, mass, morphology, and chemical composition as a function of combustion and fuel parameters.  Such research is technically challenging due to the complexity of PM, and ORNL applies a multitude of analytical tools to carry out this task.


Technical Highlights October 2015Oct 2015 highlights

Journal Paper to Report the Oak Ridge National Laboratory’s (ORNLs) Recent Discovery of Incompatibility between Diamond-Like Carbon (DLC) and Zinc Dithiophosphate (ZDDP)...