title: Trace element distribution in the snow cover from an urban area in central Poland.
abstract: This work presents the first results from winter field campaigns focusing on trace metals and metalloid chemistry in the snow cover from an urbanized region in central Poland. Samples were collected between January and March 2013 and trace element concentrations were determined using GF-AAS. A large inter-seasonal variability depending on anthropogenic emission, depositional processes, and meteorological conditions was observed. The highest concentration (in μg L(-1)) was reported for Pb (34.90), followed by Ni (31.37), Zn (31.00), Cu (13.71), Cr (2.36), As (1.58), and Cd (0.25). In addition, several major anthropogenic sources were identified based on principal component analysis (PCA), among which the most significant was the activity of industry and coal combustion for residential heating. It was stated that elevated concentrations of some trace metals in snow samples were associated with frequent occurrence of south and southeast advection of highly polluted air masses toward the sampling site, suggesting a large impact of regional urban/industrial pollution plumes.
authors.affiliation: Department of Water and Soil Analysis, Faculty of Chemistry, Adam Mickiewicz University in Poznań, Umultowska 89b Street, 61-614, Poznań, Poland, pat.s@amu.edu.pl.
authors.forename: Patrycja
authors.initials: P
authors.lastname: Siudek
authors.forename: Marcin
authors.initials: M
authors.lastname: Frankowski
authors.forename: Jerzy
authors.initials: J
authors.lastname: Siepak
mesh_terms: D000397:Air Pollution / Q000032:analysis / Q000706:statistics & numerical data; D003031:Coal / Q000032:analysis; D004784:Environmental Monitoring; D004787:Environmental Pollution / Q000032:analysis / Q000706:statistics & numerical data; D011044:Poland; D012621:Seasons; D012914:Snow / Q000737:chemistry*; D014131:Trace Elements / Q000032:analysis*; D014507:Urbanization
chemical_list: D003031:Coal; D014131:Trace Elements
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