Chemistry Journal of Moldova

ASSESSING THE CHEMICAL COMPOSITION OF NATURAL WATER USING ANALYTICAL CHEMISTRY TECHNIQUES. A CASE STUDY IN THE ORHEI DISTRICT, REPUBLIC OF MOLDOVA

Author(s):

Victor Ciornea, Silvia Eftodi, Corneliu Cojocaru, Elena Zubcov


Field: Ecological chemistry
Type: Research paper
Pages:
Keywords:

chemical composition of water, physico-chemical investigation, ICP-OES, heavy metal.


 
https://doi.org/10.19261/cjm.2024.1237

Graphycal Abstract: This study assessed water quality in Cișmea, Orhei district (coordinates 47°24’56.0"N 28°45’05.9"E). Surface and underground water were analyzed for pH, conductivity, hardness, chloride, sulfate, and chemical elements. The concentration values of the 36 elements determined by the ICP-OES method are presented. Conductivity and sulfate deviations indicated high dissolved solids. Results revealed significant deviations from permissible levels: As (1.7-1.9x), Cd (3.4-3.5x), Pb (1.2-2.3x), Na (1.2-4.0x), and B (1.6-3.3x). Notably, Ba, Tl, and Bi concentrations were also detected.