Road dust

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Small particles (particle size PM2.5) give rise to the greatest risk and the most hazardous consequences, particularly in urban areas with the greatest exposure. Sources of small particles include large-scale dispersion of particles, traffic exhaust emissions, burning of wood, industrial emissions, …

The use is already restricted in the Nordic countries. For example, in Finland, studded winter tyres can be used from the beginning of November until the end of March or until Easter Monday. The road wear and weight of studs was precisely stipulated in a regulation that took effect in 2013.