The article is the work of researchers from the Geological Survey of Slovenia, Montanuniversität Leoben in Austria, and the Chemical Institute in Ljubljana. The experts examine the geochemical properties of sediments and suspended particles in the transboundary Mura River basin. Based on samples collected at 66 locations along the main channel and tributaries, the authors studied the spatial distribution of elements and determined the geochemical background of the watershed. The results show that the geochemical composition of the sediments is primarily determined by the natural geological characteristics of the area, although the effects of human activities—particularly mining, industry, and urbanization—are also evident at individual locations. Special attention was paid to rare earth elements, whose distribution can aid in identifying the origin of sediments and anthropogenic impacts. Reference or geochemical background values provide an important basis for future environmental research, sediment quality monitoring, and distinguishing between natural geochemical characteristics and the impacts of human activities.

Adapted from the article by: Čeplak, B., Moser, U., Irrgeher, J. et al.. Geochemical Properties of Stream Sediments and Suspended Particulate Matter and Determination of Geochemical Background Values for the Alpine River Mura. Environ Geochem Health 48, 470 (2026). https://doi.org/10.1007/s10653-026-03331-4.