Supplementary material for "Rare earth elements and yttrium in Polish rivers and the input of anthropogenic gadolinium into the Baltic Sea"

<p>This dataset is presented and discussed in the research article &ldquo;Rare earth elements and yttrium in Polish rivers and the input of anthropogenic gadolinium into the Baltic Sea&rdquo; by Alemu et al. This manuscript will be submitted to Environmental Pollution and was prepared by the following authors: Addis Kokeb Alemu (1,2), Keran Zhang (1), David Ernst (1), and Michael Bau (1).&nbsp;</p> <p>1Critical Metals for Enabling Technologies &ndash; CritMET, School of Science, Constructor University, Campus Ring 1, 28759 Bremen, Germany</p> <p>2Department of Chemistry, College of Natural and Computational Sciences, University of Gondar, P.O. Box 196, Gondar, Ethiopia</p> <p>&nbsp;</p> <p>&nbsp;</p> <p>Table A1 includes the general information and data for all sampling stations and reference materials used.&nbsp;</p> <p>Figs. A1 and A2 show the concentrations of total Gd and anthropogenic Gd in samples from the Oder River (OD) and its major tributary, the Warta River (Wa), as well as the Vistula River (VS) and its major tributaries: San (Sn), Bug (BG), Brda (BR), and Narew (NR).</p>