Spatial distribution of multielements including lanthanides in sediments of Iron Gate I Reservoir in the Danube River.

Autor: Culicov OA; Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Dubna, Russian Federation.; National Institute for R&D in Electrical Engineering ICPE-CA, Bucharest, Romania., Trtić-Petrović T; Laboratory of Physics, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, Belgrade, 11001, Serbia. ttrtic@vin.bg.ac.rs., Balvanović R; Laboratory of Physics, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, Belgrade, 11001, Serbia., Petković A; 'JaroslavČerni' Institute for the Development of Water Resources, Belgrade, Serbia., Ražić S; Faculty of Pharmacy - Department of Analytical Chemistry, University of Belgrade, Belgrade, Serbia.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2021 Sep; Vol. 28 (33), pp. 44877-44889. Date of Electronic Publication: 2021 Apr 14.
DOI: 10.1007/s11356-021-13752-6
Abstrakt: Recent studies show that lanthanides (Ln) are becoming emerging pollutants due to their wide application in new technologies, but their environmental fate, transport, and possible accumulation are still relatively unknown. This study aims to determine major and trace elements including Ln in the Danube River sediment which either belong or close to the Iron Gate Reservoir. The Iron Gate Reservoir is characterized by accumulation of sediments as an effect of building hydropower dam Iron Gate I. The surface sediments were collected on the Danube River-1141 to 864 km and three tributaries along this waterway. Two samples of deep sediments were used for comparison. The results indicate the significant upward enrichment of Zn, Sb, Cr, Nd, and Dy in sediments belongs to the Iron Gate Reservoir. The sample 4-Smed is labelled as a hot spot of contamination with Zn, Cr, As, Sb, Nd, and Dy. Also, a trend of increasing concentration in the time period from 1995 to 2016 was found for elements Zn, Cr, and Ni in sediment samples in the Iron Gate Reservoir. Chemometric analysis shows the grouping of sample sites into clusters characterized by the following properties: (i) increased concentration of all measured elements (samples within the Iron Gate Reservoir); (ii) increased Cu concentration (11-Pek); and (iii) lower concentrations of the measured elements (deep sediments). The data presented hereby contribute to the monitoring of pollution of the River Danube sediments and give the first view of Ln profile in the studied sediments.
(© 2021. The Author(s).)
Databáze: MEDLINE