PreprintReviewVersion 1Preserved in Portico This version is not peer-reviewed
Radiation and Chemical Pollution of a Freshwater Ecosystem. Sources of Radionuclides and Interaction Processes With the Ecosystem Components (at an Example of the Yenisei River)
Version 1
: Received: 3 May 2023 / Approved: 4 May 2023 / Online: 4 May 2023 (08:09:11 CEST)
How to cite:
Bondareva, L. Radiation and Chemical Pollution of a Freshwater Ecosystem. Sources of Radionuclides and Interaction Processes With the Ecosystem Components (at an Example of the Yenisei River). Preprints2023, 2023050225. https://doi.org/10.20944/preprints202305.0225.v1
Bondareva, L. Radiation and Chemical Pollution of a Freshwater Ecosystem. Sources of Radionuclides and Interaction Processes With the Ecosystem Components (at an Example of the Yenisei River). Preprints 2023, 2023050225. https://doi.org/10.20944/preprints202305.0225.v1
Bondareva, L. Radiation and Chemical Pollution of a Freshwater Ecosystem. Sources of Radionuclides and Interaction Processes With the Ecosystem Components (at an Example of the Yenisei River). Preprints2023, 2023050225. https://doi.org/10.20944/preprints202305.0225.v1
APA Style
Bondareva, L. (2023). Radiation and Chemical Pollution of a Freshwater Ecosystem. Sources of Radionuclides and Interaction Processes With the Ecosystem Components (at an Example of the Yenisei River). Preprints. https://doi.org/10.20944/preprints202305.0225.v1
Chicago/Turabian Style
Bondareva, L. 2023 "Radiation and Chemical Pollution of a Freshwater Ecosystem. Sources of Radionuclides and Interaction Processes With the Ecosystem Components (at an Example of the Yenisei River)" Preprints. https://doi.org/10.20944/preprints202305.0225.v1
Abstract
Man-made chemicals have played an important role in the development of our modern society. They have revolutionized such areas as healthcare and farming and they are essential in the manufacture of a wide range of consumer products. In studying the behavior of radionuclides and metals in the bottom sediment-water system, special attention is paid to identifying the forms of existence of pollutants in terms of substantiating their migration ability and, as a result, the po-tential for their subsequent spread, i.e. secondary pollution. On the example of bottom sediments of the Yenisei River, such radionuclides as K-40, Cs-137 are shown to be present mostly in the undecomposed residue. Eu-252 and Am-241 are associated with the organic component of bottom sediments, consisting of plant and animal remains, as well as soil washed away from the floodplain part of the river bed. The radionuclide Co-60, depending on the mineralogical composition of bottom sediments, can either be almost evenly distributed between the undecomposed residue and organic matter, or dominate in the undecomposed residue. Thus, it is shown that man-made ra-dionuclides can have a high tendency to migrate, both in the thickness of bottom sediments and between such phases as bottom sediments and water.
Keywords
radiation and chemical pollution; speciation; Yenisei River
Subject
Environmental and Earth Sciences, Environmental Science
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
