Inhalable railroad particles at ground level and subterranean stations - Physical and chemical properties and relation to train traffic |
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Authors: | Mats Gustafsson,Gö ran BlomqvistErik Swietlicki,Andreas DahlAnders Gudmundsson |
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Affiliation: | a Swedish National Road and Transport Research Institute, SE-58195 Linköping, Sweden b Division of Nuclear Physics, Department of Physics, Lund University, P.O. Box 118, SE-221 00 Lund, Sweden c Division of Ergonomics and Aerosol Technology, Department of Design Sciences, Lund University, P.O. Box 118, SE-221 00 Lund, Sweden |
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Abstract: | The paper compares PM10 concentrations in railroad environments with EU air quality standards and characterizes particle concentrations and particle properties in relation to train traffic. The results show that PM10 concentrations in ground-level railroad environments do not exceed the EU directive 24-h limit value, while on the platforms of the two subterranean stations PM10 concentrations were far above the outdoor limit value. Diurnal and weekly patterns in PM10 concentration could be identified, co-varying with train traffic intensity. The particle mass size distribution peaked at around 2-6 μm. The elemental composition of PM10 at the subterranean stations was dominated by Fe. |
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Keywords: | Railroad air pollution Tunnel pollution Elemental composition Particulate size distributions Nanoparticles |
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