| Non-Exhaust Particle Emissions | Non-Exhaust Particle Emissions | Wear of brake friction materials and tires are known to generate particle emissions that can impact air and water quality. The Particle Measurement Program (PMP) which previously had focused exclusively on exhaust emissions issues has been tasked to investigate non-exhaust emissions towards better understanding their dynamics and implications for public health. NEPE Non-Exhaust Particle Emissions WP.29 Discussion Topic NEPE | Topic |