Measurement and Analysis of PM Particles Emitted by Automotive Brakes

All vehicles emit fine particles into the air during the braking due to the tyres and brakes friction. The brakes may be the most significant particulate matter (PM) contributor, especiallyin places with a high traffic density and braking frequency. As the PM particles are associated with different respiratory symptoms even sometimes with a premature death it is important to analysed the PM emitted by the automotive brakes and their distribution from PM0.3 to PM10. The current paper discusses the measurement and analysis of the PM particle sizes from 0.3μm to 10μm during the slow down process, their time and size distribution according to the brake intensity.