A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Particulate matter emission by a vehicle running on unpaved road
AbstractThe particulate matter (PM) emission from unpaved roads starts with the pulverization of surface material by the force of the vehicle, uplifting and subsequent exposure of road to strong air currents behind the wheels. The objectives of the project were to: demonstrate the utility of a simple technique for collecting suspended airborne PM emitted by vehicle running on an unpaved road, determine the mass balance of airborne PM at different heights, and determine the particle size and elemental composition of PM. We collected dust samples on sticky tapes using a rotorod sampler mounted on a tower across an unpaved road located at the Leyendecker Plant Sciences Research Center, Las Cruces, NM, USA. Dust samples were collected at 1.5, 4.5 and 6m height above the ground surface on the east and west side of the road. One rotorod sampler was also installed at the centre of the road at 6m height. Dust samples from unpaved road were mostly (70%) silt and clay-sized particles and were collected at all heights. The height and width of the PM plume and the amount of clay-sized particles captured on both sides of the road increased with speed and particle captured ranged from 0.05 to 159μm. Dust particles between PM10 and PM2.5 did not correlate with vehicle speed but particles PM2.5 did. Emission factors estimated for the total suspended PM were 10147gkm−1 at 48kmh−1 and 11062gkm−1 at 64kmh−1 speed, respectively. The predominant elements detected in PM were carbon, aluminum and silica at all heights. Overall, sticky tape method coupled with electron microscopy was a useful technique for a rapid particle size and elemental characterization of airborne PM.
Particulate matter emission by a vehicle running on unpaved road
AbstractThe particulate matter (PM) emission from unpaved roads starts with the pulverization of surface material by the force of the vehicle, uplifting and subsequent exposure of road to strong air currents behind the wheels. The objectives of the project were to: demonstrate the utility of a simple technique for collecting suspended airborne PM emitted by vehicle running on an unpaved road, determine the mass balance of airborne PM at different heights, and determine the particle size and elemental composition of PM. We collected dust samples on sticky tapes using a rotorod sampler mounted on a tower across an unpaved road located at the Leyendecker Plant Sciences Research Center, Las Cruces, NM, USA. Dust samples were collected at 1.5, 4.5 and 6m height above the ground surface on the east and west side of the road. One rotorod sampler was also installed at the centre of the road at 6m height. Dust samples from unpaved road were mostly (70%) silt and clay-sized particles and were collected at all heights. The height and width of the PM plume and the amount of clay-sized particles captured on both sides of the road increased with speed and particle captured ranged from 0.05 to 159μm. Dust particles between PM10 and PM2.5 did not correlate with vehicle speed but particles PM2.5 did. Emission factors estimated for the total suspended PM were 10147gkm−1 at 48kmh−1 and 11062gkm−1 at 64kmh−1 speed, respectively. The predominant elements detected in PM were carbon, aluminum and silica at all heights. Overall, sticky tape method coupled with electron microscopy was a useful technique for a rapid particle size and elemental characterization of airborne PM.
Particulate matter emission by a vehicle running on unpaved road
Williams, David Scott (author) / Shukla, Manoj K. (author) / Ross, Jim (author)
Atmospheric Environment ; 42 ; 3899-3905
2008-02-05
7 pages
Article (Journal)
Electronic Resource
English
Particulate Emission Rates for Unpaved Shoulders along a Paved Road
| Taylor & Francis Verlag | 1998
| British Library Online Contents | 2015
Effect of vehicle characteristics on unpaved road dust emissions
| Elsevier | 2004
Geotextile-Reinforced Unpaved Road Design
| British Library Conference Proceedings | 2008