Abstract Longitudinal transformation of several hydrochemical parameters in the Moskva River was reviewed based on data extensive monitoring studies conducted 2019-2020. Changes chemical composition and their seasonal variation were quantified relation to only remaining natural part river above Mozhaysk Reservoir. We found that overall variability element concentrations not affected by anthropo...

The paper assesses the ecological state of Udy and Oskil rivers investigates changes in climatic indicators Kharkiv region by building predictive models using Holt-Winters method based on data collected before start russia's full-scale aggression against Ukraine. On basis multifactorial correlation-regression analysis, factors that have greatest influence been determined. Determination correlat...

Abstract Porous and fractured aquifers exist in the area of Hurghada, Eastern Desert Egypt, whose recharge processes through common flash floods are not identified. Hydrochemical parameters, stable isotopes 18 O, 2 H tritium floodwater groundwater were applied subject to study. Additionally, He investigated deep wells faulted zone at Abu Shaar Plateau. 3 activity all sampled points lies below d...

Temporal and seasonal variability of hydrochemical properties in a deep, highly eutrophic lake was presented. It was shown that the feedback between the biocenosis and abiotic properties was of key importance for the lake environment, especially for features shaped by oxygen content. During vegetation season in a shallow trophogenic zone supersaturated with oxygen, quick depletion of some nutri...

Hydrochemical assessment of the freshwater lakes provides important insights into sources dissolved ions, geochemical processes, and anthropogenic activities taking place in environment. This study focuses on hydrochemistry water quality Kupinde Lake, Karnali Province, Nepal. Surface samples were collected from 24 different locations lake October 2021 analyzed for 18 physico-chemical parameters...