Abstract
In the beginning of March 2006, polluted snow from a roadside in Lulea, in the north of Sweden, with a traffic intensity of approximately 7,400 vehicles per day, was collected. The snow was homogenously mixed and divided into samples of 30 litres. The initial volumes and densities of the snow samples were measured and calculated. The snow samples were melted in climate rooms, with four different experimental configurations, to investigate the influence of road salt, temperature, and surface slope upon the transport of total suspended solids (TSS) (three replicates for each experimental configuration). The total volume of snowmelt runoff was collected and analysed for pH, conductivity, and concentrations of TSS and chlorides. The results showed that measured concentrations, calculated mass loads, and performed statistical t-tests of TSS for the snowmelt of the four different configurations implied that the transported mass load of TSS was higher with the addition of road salt and at higher ambient temperatures. However, the results showed a lower mass load of transported TSS for the lower slope.
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