Features of a High Strontium Concentration in Drinking Groundwater near the Sea Coast

The strontium concentration factors in groundwater were estimated in various regions of the world. However, the analyses and interpretations were generally carried out for the entire set of hydrochemical data, without separating water samples with high and low Sr contents. Therefore, the correlation...

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Bibliographic Details
Published in:Doklady earth sciences 2023-09, Vol.512 (1), p.898-901
Main Author: Malov, A. I.
Format: Article
Language:English
Subjects:
Aquifers
Brackish water
Carbonates
Celestite
Clusters
Correlation
Drinking water
Earth and Environmental Science
Earth Sciences
Groundwater
Gypsum
Hydrochemicals
Isotopes
Land Water Problems
Mineralization
Ocean circulation
Oxidation
Strontium
Tracers
Upwelling
Uranium
Uranium isotopes
Water analysis
Water sampling
Water supply
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Summary:The strontium concentration factors in groundwater were estimated in various regions of the world. However, the analyses and interpretations were generally carried out for the entire set of hydrochemical data, without separating water samples with high and low Sr contents. Therefore, the correlations were often approximate. This study summarizes a new approach to the use of nontraditional tracers, including carbon and uranium isotopes, to study areas that are promising for the drinking water supply. Water samples are divided into two clusters according to the Sr content: (1) more than 7 mg/L and (2) less than 7 mg/L. The research objective is to understand the Sr concentration features in each cluster separately. The first cluster samples are characterized by a high correlation of Sr and the total mineralization, along with a correlation of Sr and SO likely due to high Sr in carbonates enriched in gypsum and celestite. The dedolomitization processes and reduction conditions in aquifers also have an effect. An increase in Sr due to brackish water upwelling is not confirmed. In the second cluster sample, low Sr concentrations are related to oxidation conditions in aquifers. No correlation is observed between Sr and the total mineralization due to low and discrete concentrations of gypsum and celestite in carbonates. The dedolomitization effect is absent. A brackish water upwelling, on the contrary, can have a significant effect on the increase in Sr.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X23601098