@ARTICLE{Rogula-Kozłowska_W._Concentrations_2011, author={Rogula-Kozłowska, W. and Błaszczak, B. and Klejnowski, K.}, volume={vol. 37}, number={No 2}, journal={Archives of Environmental Protection}, howpublished={online}, year={2011}, publisher={Polish Academy of Sciences}, abstract={Concentrations and elemental composition of fine (PM2.5) and coarse (PM2.5-10) ambient particles, at two sampling points located at the same urban background sites, were investigated. The points were 20 m distant from each other and at various heights (2 and 6 m) above the ground. A dichotomous sampler, equipped with a virtual impactor, and a cascade impactor were used to sample the dust. An X-ray fluorescence spectrometer was used in the elemental analyses. The investigations revealed heterogeneity of the spatial distribution and the elemental composition of suspended dust at the investigated urban background site. Coarse dust, whose concentration at 2.0 m above the ground was affected by secondary emission from roads, soil and other local low-level sources in some periods, appeared more heterogeneous.}, type={Artykuły / Articles}, title={Concentrations of PM2.5, PM2.5-10 and PM-Related Elements at Two Heights in an Urban Background Area in Zabrze (Poland)}, URL={http://journals.pan.pl/Content/85479/mainfile.pdf}, keywords={particulate matter, PM2.5, fine dust, PM2.5-10, coarse dust, chemical composition, heavy metals, elements, virtual impactor, cascade impactor, energy dispersive X-ray fluorescence, EDXRF, spectrometer, urban background, spatial distribution, secondary emission, enrichment factor}, }