The effect of traction sanding on urban suspended particles in Finland.
Springtime urban road dust forms one of the most serious problems regarding air pollution in Finland. The composition and origin of springtime dust was studied in southern Finland with two different methods. Suspended particles (PM10 and TSP) were collected with high volume particle samplers and particle deposition was collected with moss bags. The composition of the PM(1.5-10) fraction was studied using individual particle analysis with SEM/EDX. The deposition in the moss bags was analysed with ICP-MS. The results showed that during the study period, approximately 10% of both PM(1.5-10) particles and the deposition originated from sanding. Other sources in the springtime PM(1.5-10) were e.g. asphalt aggregate or soil and combustion processes. It can be concluded that sanding produced a relatively small amount of particulate matter under the investigated circumstances.
Kupiainen
Kaarle
K
Department of Limnology and Environmental Protection, University of Helsinki, Helsinki, Finland. kaarle.kupiainen@helsinki.fi
Tervahattu
Heikki
H
D000393:Air Pollutants / Q000032:analysis*; D004784:Environmental Monitoring; D005387:Finland; D018986:Motor Vehicles; D010316:Particle Size; D012621:Seasons; D012822:Silicon Dioxide
D000393:Air Pollutants; D012822:Silicon Dioxide