Geodesic
Potentially toxic elements in the surface waters
News of the Kabardin-Balkar scientific center of RAS, no. 5 (2022), pp. 105-115

Voir la notice de l'article provenant de la source Math-Net.Ru

Since the purification of drinking water from heavy metals is not carried out presently, the study of the trace element composition of the waters used for these purposes is absolutely necessary. The aim of this work is to study the micro-component composition in surface waters of the Cherek Bezengiysky river basin. Concentrations of 11 metals of hazard classes II - IV (Ag, Al, As, Cd, Cr, Cu, Mn, Mo, Ni, Pb, Zn) were determined. Water samples were taken at the end of June – July during the period of intensive glaciers melting. The content of heavy metals was determined using atomic absorption spectroscopy. The study showed that only two metals – manganese and zinc - are characterized by a natural decrease in concentrations when changing climatic zones from the highlands to the middle mountains. For metals whose concentrations are within Clark values (Ag, Cd, Cr, Cu, Ni, Pb), no regularities in the dynamics of concentrations in surface waters associated with the transition from the high-altitude to the mid-mountain zone were revealed. Higher concentrations of arsenic (up to 2 MPC for drinking water) found in two watercourses are associated with the presence of geochemical anomalies. In general, the surface waters of the Cherek Bezengiysky river basin have the lowest level of natural pollution with potentially toxic elements compared to other rivers of Kabardino-Balkaria.
Keywords: geochemical anomalies, alpine rivers.
Mots-clés : trace elements 
@article{IZKAB_2022_5_a9,
     author = {N. V. Reutova and T. V. Reutova and F. R. Dreyeva and A. M. Khutuev},
     title = {Potentially toxic elements in the surface waters},
     journal = {News of the Kabardin-Balkar scientific center of RAS},
     pages = {105--115},
     publisher = {mathdoc},
     number = {5},
     year = {2022},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IZKAB_2022_5_a9/}
}
TY  - JOUR
AU  - N. V. Reutova
AU  - T. V. Reutova
AU  - F. R. Dreyeva
AU  - A. M. Khutuev
TI  - Potentially toxic elements in the surface waters
JO  - News of the Kabardin-Balkar scientific center of RAS
PY  - 2022
SP  - 105
EP  - 115
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IZKAB_2022_5_a9/
LA  - ru
ID  - IZKAB_2022_5_a9
ER  - 
%0 Journal Article
%A N. V. Reutova
%A T. V. Reutova
%A F. R. Dreyeva
%A A. M. Khutuev
%T Potentially toxic elements in the surface waters
%J News of the Kabardin-Balkar scientific center of RAS
%D 2022
%P 105-115
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IZKAB_2022_5_a9/
%G ru
%F IZKAB_2022_5_a9
N. V. Reutova; T. V. Reutova; F. R. Dreyeva; A. M. Khutuev. Potentially toxic elements in the surface waters. News of the Kabardin-Balkar scientific center of RAS, no. 5 (2022), pp. 105-115. http://geodesic.mathdoc.fr/item/IZKAB_2022_5_a9/