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TECHNICAL PAPER...

ISSN 1047-3289 J. Air & Waste Manage. Assoc. 60 1422 1433 DOI 10.3155/1047-3289.60.12.1422...

Copyright 2010 Air & Waste Management Association...

Road Dust Emissions from Paved Roads Measured Using Different Mobile Systems...

Liisa Pirjola Metropolia University of Applied Sciences, Department of Technology and Department of Physics, University of Helsinki, Helsinki, Finland Christer Johansson Department of Applied Environmental Science, Stockholm University and Environment and Health Administration, Stockholm, Sweden Kaarle Kupiainen Nordic Envicon Oy and Finnish Environment Institute, Helsinki, Finland Ana Stojiljkovic Nordic Envicon Oy, Helsinki, Finland Hans Karlsson Department of Applied Environmental Science, Stockholm University, Stockholm, Sweden Tareq Hussein Department of Physics, University of Helsinki, Helsinki, Finland and Department of Physics, University of Jordan, Amman, Jordan...

ABSTRACT Very few real-world measurements of road dust suspension have been performed to date. This study compares two different techniques (referred to as Sniffer and Emma) to measure road dust emissions. The main differences between the systems are the construction of the inlet, different instruments for recording particulate matter (PM) levels, and different loads on the wheel axes (the weight of Sniffer was much higher than that of Emma). Both systems showed substantial small-scale variations of emission levels along the road, likely depending on-road surface conditions. The variations observed correlated quite well, and the discrepancies are likely a result of...

IMPLICATIONS In most developed countries, exhaust emissions from vehicles are controlled by legislation (e.g., European Union, U.S. Environmental Protection Agency) therefore, exhaust emissions are expected to decrease drastically in the future. However, suspended road dust will remain or become an even bigger problem because of an increasing number of vehicles in urban and rural areas. There is still a knowledge gap regarding the dominant mechanisms leading to road dust emissions, although resuspension of surface particle loading obviously plays an important role. This paper presents a comparison of two different state-of-the-art mobile systems and establishes quantitative relationships between PM emissions under different conditions....

variations in dust load on the road surface perpendicular to the driving direction that cause variations in the measurements depending on slightly different...

Document Keywords

Road Dust Emissions from Paved Roads Measured Using Different Mobile Systems publications 1109 pirjola 2010 road dust emissions from paved roads using different mobile systems air waste man ass 60 1422 1433

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