Measurements of spatial variability of sub-micron particle number concentrations perpendicular to a main road in a built‑up area
- 6 August 2021
- journal article
- research article
- Published by Schweizerbart in Meteorologische Zeitschrift
- Vol. 30 (4), 315-331
- https://doi.org/10.1127/metz/2021/1058
Abstract
A six-week fiel study was conducted to determine spatial and temporal variability of sub-micron (diameter range 10-1000 nm) particles perpendicular to a main road in the city of Berlin, Germany. Measurements were carried out on 17 days with overall 72 runs along a 250 m almost untraveled footpath. Particle number concentration (PNC) as well as the share of local sources were analyzed in relation to the distance to the road, wind speed and wind direction. This study aims to detect patterns of PNC dispersal along the footpath with increasing distance from the road in a built-up urban environment and to identify impact factors. In the majority of cases, results can be expressed well in terms of an exponential decrease of PNC with increasing distance from the road. Traff c f ow along the main road has a substantial impact on concentration levels. About 30 % of the PNC at the roadside and 15 % at a distance greater than 100 m can be attributed to traff c. Variations in background concentrations, however, contribute the largest share to concentration levels.Keywords
This publication has 34 references indexed in Scilit:
- openair — An R package for air quality data analysisEnvironmental Modelling & Software, 2012
- Vertical and horizontal concentration distributions of ultrafine particles near a highwayAtmospheric Environment, 2012
- Influence of short-term exposure to ultrafine and fine particles on systemic inflammationEuropean Journal of Epidemiology, 2010
- Fast response measurements of the dispersion of nanoparticles in a vehicle wake and a street canyonAtmospheric Environment, 2009
- Air pollutant concentrations near three Texas roadways, Part I: Ultrafine particlesAtmospheric Environment, 2009
- Ultrafine particles near a major roadway in Raleigh, North Carolina: Downwind attenuation and correlation with traffic-related pollutantsAtmospheric Environment, 2009
- Street Versus Rooftop Level Concentrations of Fine Particles in a Cambridge Street CanyonBoundary-Layer Meteorology, 2008
- Measurements of particles in the 5–1000 nm range close to road level in an urban street canyonScience of The Total Environment, 2008
- Dilution and aerosol dynamics within a diesel car exhaust plume—CFD simulations of on-road measurement conditionsAtmospheric Environment, 2007
- Mobile platform measurements of ultrafine particles and associated pollutant concentrations on freeways and residential streets in Los AngelesAtmospheric Environment, 2005