Multivariate Analysis and Geostatistics of the Physicochemical Quality Waters Study from the Complex Lake Togo-Lagoon of Aneho (Southern Togo)
Source abstract
Abstract
The hydrosystem composed of Lake Togo, Lagoon of Togoville, and Lagoon of Aného is located in the coastal zone of Togo and receives important and different kinds of mining waste that cause its degradation. This study aims to evaluate the physicochemical and metallic quality of these waters and determine the possible sources of these contaminants using geostatistical, multivariate, and special analysis methods. These waters were very mineralized according to the average conductivity (15.51 mS/cm). Average contents (μg/L) in trace elements varied from 2.46 μg/L for As to 141.63 μg/L for Pb. Average levels of Cd, Pb, Cr, and Ni were significantly higher than the WHO standards. Trace elements and physicochemical parameters showed strong spatial variations with the highest values recorded downstream of the hydrosystem. The main possible source of trace element pollution was the intrusion of seawater loaded with phosphate effluent, followed by atmospheric deposition and soil leaching. This hydrosystem, therefore, deserves special attention for better planning its management.
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Research context
OpenAlex topics: Water Quality and Pollution Assessment · Aquatic Ecosystems and Phytoplankton Dynamics · Historical and Environmental Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Laboratoire de Gestion, Traitement et Valorisation des Déchets, Faculté des Sciences, Université de Lomé, Lomé BP 1515, Togo
Faculty of Engineering, “Vasile Alecsandri” University of Bacau, Calea Marasesti 156, 600115 Bacau, Romania
Laboratoire de Biochimie Appliquée à la Nutrition, Faculté des Sciences, Université de Lomé, Lomé BP 1515, Togo
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