Health Risk Assessment of Heavy Metals in the Water of the LoutétéRiver, Mfouati District, Southeast Congo

作     者：Ifo Grace Mazel Diamouangana Mpissi Zita Flora Bibila Mafoumba Jean Claude Matini Laurent Ifo Grace Mazel;Diamouangana Mpissi Zita Flora;Bibila Mafoumba Jean Claude;Matini Laurent

作者机构：Laboratoire de Chimie Minérale et Appliquée Faculté des Sciences et Techniques Université Marien N’GOUABI Brazzaville Republic of the Congo Parcours chimie Faculté des Sciences et Techniques Université Marien N’GOUABI Brazzaville Republic of the Congo Département des Sciences Exactes Ecole Normale Supérieure Université Marien N’GOUABI Brazzaville Republic of the Congo Faculté des Sciences Appliquées Université DENIS SASSOU N’GUESSO Brazzaville Republic of the Congo 

出 版 物：《Journal of Geoscience and Environment Protection》 (地球科学和环境保护期刊（英文）)

年 卷 期：2022年第10卷第12期

页      面：77-86页

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：Hazard Quotient Non-Carcinogenic Risk Heavy Metals 

摘      要：The overall objective of this study was to assess the health risk of water in the Loutété River contaminated with heavy metals. Six surface water samples were collected during the dry season (October 2014). The physico-chemical parameters (pH, electrical conductivity, total dissolved salts) were measured using a HANNA brand device. The values of these physico-chemical parameters are below the WHO standards. The concentrations of heavy metals Cr, Cu, Fe, Pb, Zn and Mn were determined by ICP-OES. These obtained in (μg/L) are in the range: Cr (0.08 - 5.8);Cu (0.6 - 14.5);Fe (0.2 - 386.05);Pb (1.02 - 370.09);Zn (8.02 - 248.7) and Mn (37.1 - 328.08). These concentrations are below the WHO drinking water guideline value in all samples for Cr, Cu, Mn and Zn, 50, 2000, 400 and 3000 μg/L respectively. Concentrations of As, Fe and Pb exceeded the WHO guideline value for drinking water at the following stations: S1 for arsenic, S4 for iron, and for Pb at all stations except S5. The health risk assessment for adults due to ingestion exposure gave HQing. values 1 for lead. In the case of ingestion, HQing. 1 for the heavy metals Cr, Cu, Zn, Mn, with the exception of the following metals Arsenic, Lead and Iron.