Lung-Wen Antony Chen (Environmental and Occupational Health), along with researchers from Desert Research Institute, University of California, Riverside, and California Air Resources Board,  recently published an article, "Evidence of non-tailpipe emission contributions to PM_2.5 and PM₁₀ near southern California highways," in Environmental Pollution.

This study characterizes PM_2.5 and PM₁₀ concentrations and chemical compositions adjacent to two major highways in southern California. Markers for tailpipe and non-tailpipe emissions were quantified. The results will be used to improve understanding of near-road PM sources, atmospheric transformations, potential health effects, and community exposure.