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Generation of Urban Road Dust from Anti-skid and Asphalt Concrete Aggregates by Heikki Tervahattu; Kaarle J. Kupiainen; Mika Räisänen; Timo Mäkelä; Risto Hillamo is a Environmental Science article available to read on EtoBox.

What is Generation of Urban Road Dust from Anti-skid and Asphalt Concrete Aggregates about?

Road dust forms an important component of airborne particulate matter in urban areas. In many winter cities the use of anti-skid aggregates and studded tires enhance the generation of mineral particles. The abrasion particles dominate the PM 10 during springtime when the material deposited in snow is resuspended. This paper summarizes the results from three test series performed in a test facility to assess the factors that affect the generation of abrasion components of road dust. Concentrations, mass size distribution and composition of the particles were studied. Over 90% of the particles were aluminosilicates from either anti-skid or asphalt concrete aggregates. Mineral particles were observed mainly in the PM 10 fraction, the fine fraction being 12% and submicron size being 6% of PM 10 mass. The PM 10 concentrations increased as a function of the amount of anti-skid aggregate dispersed. The use of anti-skid aggregate increased substantially the amount of PM 10 originated from the asphalt concrete. It was concluded that anti-skid aggregate grains contribute to pavement wear. The particle size distribution of the anti-skid aggregates had great impact on PM 10 emissions which wer

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Author

Heikki Tervahattu; Kaarle J. Kupiainen; Mika Räisänen; Timo Mäkelä; Risto Hillamo

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0304-3894)

Published

2006

Language

EN

Field

Environmental Science (Physical Sciences)