Comparative analysis of water salinity of Lenkoranchay and Vilyashchay rivers

Abstract

The article discusses the changes in the content of the composition of salts and ions in the rivers of Lenkoranchay and Vilyashchay, which belong to the southern region of Azerbaijan. To study changes in water quality composition comparative analyzes were performed in 2003-2018 years. Comparison shows that over the past 15 years, the salt composition of the Lenkoranchay and Vilyashchay rivers has changed depending on the year and season. It was found out that in 2018 the salinity (according to the dry residue) in the waters of Vilyashchay almost doubled compared to 2003. And in the composition of Lenkoranchay water in the same years, this indicator increased from 0.522 to 0.680 g / l. In the composition of the waters under study, the amount of salt ions, pH and silt content were also studied. It was revealed that there have been significant changes in the content of these indicators depending on the rivers.