An investigation of the 2013 emergence of an ephemeral pool-like surface water body in the Nachi area of southeastern Nigeria

Aghamelu, O. P.; Amah, Joseph Idu; Nwatalari, Nwaneto Alexander

doi:10.1007/s12517-021-09125-5

Cited by 1 publication

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“…Despite the fact that residents of developing countries rely heavily on natural water sources due to a lack of adequate or better alternatives provided by local authorities, research has revealed that only about 4.9% (Annapooorna and Janardhana 2015) of surface water worldwide is fresh and suitable for human consumption and other purposes (Nweke et al 2013;Itumoh et al 2015;Aghamelu et al 2022). Researched and published works abound on the quality and impacts of heavy metals (which usually migrate through infiltration and runoff into the hydrological cycle) on natural water sources by dumpsite leachates and the possible health risks they pose in different parts of the world (for example Beaven and Walker 1997;Hoffman et al 1991;Esakku et al 2003;Khan et al 2013;Pawaj and Gawande 2015) and in parts of Nigeria (for example; Afolayan et al 2012;Coker et al 2016;Onyekwelu and Aghamelu 2019).…”

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confidence: 99%

Multivariate and health risks analysis of heavy metals in natural water sources around Enugu dumpsite, southeastern Nigeria

Ozoko

Onyekwelu

Aghamelu³

2022

Appl Water Sci

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The concentrations of heavy metals and health risks associated with the consumption of domestic water sources around a dumpsite in Enugu (southeastern Nigeria) were assessed by atomic absorption spectrophotometry and multivariate analysis. The results showed the dumpsite leachate mean pH value of 4.1, Mn+ of 11.4 µg/l, Fe3+ 4.1 µg/l, Cd+ 0.3, As+ 6.03 µg/l, Pb+ 2.47 µg/l, Ni+ 14.13 µg/l, and Cr3+ 1.48. The groundwater and surface water samples had mean heavy metal values as follows: Mn+ 5.23 and 0.75 µg/l, Fe3+ 1.49 and 0.15 µg/l, Cd+ 0.08 and 0.10 µg/l, As+ 1.90 and 0.15 µg/l, Pb+ 1.01 and 0.35 µg/l, Ni+ 0.37 and 0.05 µg/l, and Cr3+ 0.03 and 0.05 µg/l, respectively. Comparison with maximum permissible limits indicated that the mean heavy metal concentrations of the tested samples were lower than the limits for drinking water, except for Mn+, As+, and Pb + , which were marginal above recommended limits. Principal component analysis results showed two principal components with the first principal component having high loadings of Mn+, Fe3+, As+, Pb+, Ni+, and Cr3+, which are statistically correlated. Probable sources of these contaminants include automobile parts and tools, batteries and electrical appliances and electronics heaped at the dumpsite. Analysis of variance results indicates a significant difference in datasets between and within each and both water sources. Human health risk assessment indices indicated that the water sources are moderate to highly polluted and could pose both non-carcinogenic and carcinogenic threats when consumed untreated, with children being more exposed than adults.

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