Spatiality, seasonality and ecological risks of heavy metals in the vicinity of a degenerate municipal central dumpsite in Enugu, Nigeria

Journal of Environmental Health Science & Engineering
Kanayochukwu C AjahChidozie C Nnaji

Abstract

Improper waste disposal is responsible for the contamination of both surface and ground water resources. Heavy metals leached from improperly disposed solid waste constitute grave environmental and health hazards because of their toxic and persistent nature. There are thousands of open dumps in Nigeria one of which is the Enugu State Waste Management Authority dumpsite. Forty sampling nodes were systematically established around the Enugu State waste Management Authority central dumpsite located at Ugwuaji, Enugu State, Nigeria. Ten heavy metals (arsenic, cadmium, cobalt, copper, chromium, iron, lead, manganese, nickel and zinc) were sampled at different depths of each node in both rainy and dry seasons. Iron and lead were the predominant metals in the vicinity of the waste dump with average values of 132.10 mg/kg and 117.52 mg/kg respectively. The order of abundance of the ten heavy metals monitored is Pb > Fe > As > Zn > Cu > Co > Ni > Cd > Cr > Mn. Generally, there was significant correlation (0.25 to 0.74) among all the metals except between cobalt and manganese in the rainy season. In the dry season, all the metals were significantly correlated (0.29 to 0.813) except for copper and lead, copper and arsenic, zinc and arseni...Continue Reading

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Citations

Mar 7, 2018·Environmental Science and Pollution Research International·Danfeng YuJinben Wang
Feb 27, 2019·Environmental Monitoring and Assessment·Silvia Viridiana Vargas-SolanoM P Jonathan
Aug 13, 2015·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Corrado AmodeoDonatella Caniani
Sep 12, 2021·Environmental Monitoring and Assessment·Huijuan HuTangqi Xu

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Software Mentioned

Statistical Package for Social Sciences ( SPSS
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