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Heavy Metal Pollution of Chari River Water during the Crossing of N’Djamena (Chad)

机译:恩贾梅纳(乍得)穿越期间Chari河水的重金属污染

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摘要

This study was carried out to identify and assess the water quality of the Chari River. The Chari, 1200 km long, is Chad’s major water source. Municipal sewage, industrial wastewater discharge, and seasonal run-off from agriculture are regularly fed into the river. Several trace metals such as Cu, Zn, Fe, Ni, Cr, Mn, and Cd, were measured in different sampling stations located along the Chari River at N’Djamena in different campaigns from 2008 to 2010. Overall, manganese, zinc, chromium, and copper concentration levels were mainly in the range of the permissible limits prescribed by WHO guidelines (WHO 2011). Nickel, iron, and cadmium concentrations were still high. This preliminary study allowed us to identify the magnitude of toxic pollutants, which are responsible for Chari River water contamination in the study area. This study revealed that urgent measures must be taken to protect the local people from health problems resulting from high concentrations of heavy metals.
机译:进行这项研究以鉴定和评估Chari河的水质。查里(Chari)长1200公里,是乍得的主要水源。定期将城市污水,工业废水排放和农业季节性径流引入河中。在2008年至2010年的不同活动中,在N'Djamena的Chari河沿线的不同采样站中测量了几种微量金属,如Cu,Zn,Fe,Ni,Cr,Mn和Cd。总体而言,锰,锌,铬,并且铜浓度水平主要在WHO准则规定的允许限值范围内(WHO 2011)。镍,铁和镉的浓度仍然很高。这项初步研究使我们能够确定有毒污染物的数量,这些污染物是研究区域Chari河水污染的原因。这项研究表明,必须采取紧急措施,以保护当地人免受高浓度重金属引起的健康问题。

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