THE GEOCHEMISTRY OF FLUORINE AND ARSENIC IN THE NATURAL WATERS OF THE RAHIV DISTRICT OF THE TRANSCARPATHIAN REGION AS A FACTOR OF POPULATION HEALTH

N.O. Kryuchenko 1
https://orcid.org/0000-0001-8774-9089
E.Ya. Zhovynskyi 1
https://orcid.org/0000-0003-1601-5998
P.S. Paparyga2
https://orcid.org/0000-0002-4021-0809
M.V. Kuhar1
https://orcid.org/0000-0003-3572-5194
O.A. Zhuk1
https://orcid.org/0000-0002-5264-0750
T.A. Popenko1
https://orcid.org/0009-0001-7524-8065

1 M.P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation of the NAS of Ukraine 34, Acad. Palladin Ave., Kyiv, Ukraine, 03142
2 Carpathian Biosphere Reserve, Ministry of Ecology and Natural Resources in Ukraine, 77, Krasne Pleso str., Rakhiv, Ukraine, 90600

https://doi.org/10.15407/gof.2024.45.003

The results of the analysis of F and other trace elements (As, V, Cr, Ni, Cu, Zn, Se, Mo, Ag, Cd, Sn, Sb, Hg, Pb, Li) of natural waters (18 sites — surface waters of the White Tisza rivers, Yew, streams, springs, Lake Brebeneskul and well water) of the Rakhiv district of Transcarpathia region, statistical indicators were calculated (the median content was taken as background). In most samples, the concentration of fluorine ranges from 0.014 to 0.44 mg/dm3 (the background content is set at 0.076 mg/dm3, the maximum permissible concentration (MPC) is 1.5 mg/dm3). The content of fluorine in the waters of different altitude zones (low-mountain, mid-mountain, mountain, sub-alpine and alpine) was analyzed — no dependence was found.
Correlation analysis showed an average positive relationship between fluorine and arsenic (the background content of As was determined to be 0.00009 mg/dm3, the MPC was 0.05 mg/dm3). For a comparative analysis of the content of F and As in the waters, the concentration coefficient was calculated (Kс — the ratio of the element in the water to the background content). It was found that in the well waters of the sanatorium “Hirska Tysa” (used for baths) Kс As — 3277, Water “Health Falls” Ks As — 30, with Kс F less than 1. Water samples where Kс F and As are increased were also found: stream of the Krasne Plesso tract — Kс As —11, Kс —F of the Shchaul stream — 2; Kс As — 22, Kс F — 2. Analysis of the fluorine content in bottled water (17 names) sold in Ukraine showed that the optimal content (0.7—1.2 mg/dm3) in deep artesian waters is Rohansk , Zhytomyr springs, Water V7, which can be recommended to the population to replenish the fluoride balance of the population of the region.

Key words. Natural waters, fluorine, arsenic, background content, concentration coefficient, Rakhiv district.

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