Groundwater vulnerability and trace element dispersion in the Quaternary aquifers along middle Upper Egypt.
Environ Monit Assess
; 192(3): 174, 2020 Feb 12.
Article
en En
| MEDLINE
| ID: mdl-32052191
ABSTRACT
Association of trace metal concentrations in water is problematic; however, its information is scarce and sometimes contradicted. This work presents variations in dissolved major constituents and trace element concentrations along the quaternary aquifers located in middle Upper Egypt (Minia and Assiut governorates). A total of 205 groundwater samples from these aquifers were collected. Auxiliary parameters (pH, alkalinity, and conductivity), major cations (Ca2+, Mg2+, Na+, and K+), dominant anions (HCO3-, SO42-, Cl-, and NO3-), and trace element (B, Fe, Cu, Mn, Ni, Pb, Cd, and Cr) concentrations were measured in all samples. Univariate (correlation coefficient and scatter matrix) analysis was employed combined with multivariate (principal coordinates analysis) analysis to identify the chemical characteristics of groundwater that are responsible for generating most of the variability within the dataset. Also, hierarchical cluster analysis was applied to classify the geochemical origin of the groundwater constituents. The results indicate that the groundwater pollution is mainly due to water-rock interactions, including aquifer matrix dissolution, redox reaction of trace metals, input from wastewater, and agricultural fertilizers.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Oligoelementos
/
Contaminantes Químicos del Agua
/
Agua Subterránea
Tipo de estudio:
Prognostic_studies
País/Región como asunto:
Africa
Idioma:
En
Revista:
Environ Monit Assess
Asunto de la revista:
SAUDE AMBIENTAL
Año:
2020
Tipo del documento:
Article
País de afiliación:
Egipto