Comparative Study of the Major Ion Composition in Eurasian Salt Lakes: Lake Urmia, Lake Issyk-Kul, Aral Sea, and Dead Sea
- Year of publication
- 2023
- Journal
- Handbook of Environmental Chemistry
- Involved from NIVA
-
Evgeny Yakushev
- Contributors
- Natalia Y. Andrulionis, Evgeniy Yakushev, Mahnaz Jafari, Petr O. Zavialov, Hamid A.K. Lahijani, Peygham Ghaffari
Summary
A comparative study of the major ion composition on the base of the same chemical methods was made for the hypersaline lakes: the Lake Urmia, the Aral Sea, the Dead Sea, and the brackish Lake Issyk-Kul. The samples from the investigated lakes with salinity changing from 5 to 328 g kg−1 were collected in 2013–2019. Concentrations of anions: chlorides, sulfates, carbonates, and cations: calcium and magnesium were determined with potentiometric titration and potassium with gravimetric method. The density was analyzed with a high-precision method using the density meter Anton Paar DMA 5000M and salinity was also expressed as a total sum of ions. Comparison of the salt compositions of the lakes revealed significant differences in the ratios of their components and their temporal variability due to a changing climate and anthropogenic impact.