Search results

Filters

  • Journals
  • Authors
  • Keywords
  • Date
  • Type

Search results

Number of results: 4
items per page: 25 50 75
Sort by:
Download PDF Download RIS Download Bibtex

Abstract

Arsenic content was determined in the soil profiles collected from the former dumping ground of post-crystallization lye (presently under recultivation) in the area of the chemical plant in Luboń, near Poznań. Of particular concern was the content of the two most toxic species ofAs(lll) and As(V) in the environmentally available exchange fraction. Extraction was performed with a phosphate buffer of pH= 6.0 ± 0.2, and the analytical method applied was HPLC-HG-AAS. As(V) species were found in all samples, whereas As(III) species in a few samples collected at different depths. The concentration of As(V) varied from 91 to 1228 ng/g, while that of As(ll I) - from 17 to 48 ng/g. As there are no watertight rock formations underneath the dumping site, the polluting substances can he easily washed out by ground waters and carried into the Warta River, which is a main source of water for the city of Poznań.
Go to article

Authors and Affiliations

Lidia Kozak
Przemysław Niedzielski
Download PDF Download RIS Download Bibtex

Abstract

This study presents the determination of the content of selected metals (Ba, Ca, Fe, Nb, Rb, Sr, Y, Zn, and Zr) in postglacial deposits from two glacial valleys (Ebbadalen and Elsadalen) in the Petunia Bay (southern Spitsbergen). The aim of the research was to experimentally check the usefulness of the handheld energy dispersive X-ray fluorescence technique in the study of samples from the polar zone, before performing the future field tests. Deposit analyses were performed (in parallel) with two handheld X-ray fluorescence spectrometers from different manufacturers, to investigate the accuracy and reliability of the instruments. The statistical analysis of the results indicated that the measurements carried out with two spectrometers were statistically significantly different, which was probably due to the different calibration characteristics used by the manufacturers. However, the analysis of the spatial distribution of element concentrations using Geographic Information System tools showed that the distribution maps of elements concentrations were similar regardless of the spectrometer used in the analyses.
Go to article

Authors and Affiliations

Lidia Kozak
1
Juliana Silva Souza
1
Adam Nawrot
2
Jędrzej Proch
1
Marcin Kaźmierski
3
Agnieszka Zawieja
4
Przemysław Niedzielski
1

  1. Adam Mickiewicz University in Poznań, Faculty of Chemistry, Department of Analytical Chemistry, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
  2. Institute of Geophysics Polish Academy of Sciences, Księcia Janusza 64, 01-452 Warszawa, Poland
  3. Adam Mickiewicz University in Poznań, Faculty of Geographical and Geological Sciences, Bogumiła Krygowskiego 10, 61-680 Poznań, Poland
  4. MEWO S.A., Starogardzka 16, 83-010 Straszyn, Poland

This page uses 'cookies'. Learn more