Accumulation of Traffic-Related Trace Metals in Urban Winter-Long Roadside Snowbanks

摘要

Accumulations of mass loads of selected chemicals in roadside snowbanks were studied at five sites with various traffic densities in the city of Trondheim (Norway) by collecting snow samples throughout the winter period and analyzing them for 13 water quality constituents: pH, electrical conductivity (EC), alkalinity, Cl, Na, total suspended solids (TSS), Cd, Cr, Cu. Ni, Pb, W, and Zn. The resulting dataset was then supplemented by similar data collected earlier in the city of Lulea (Sweden). Regression analyses for individual sites indicated linear trends in unit-area constituent accumulations with time (0.65