IIARD International Institute of Academic Research and Development

INTERNATIONAL JOURNAL OF CHEMISTRY AND CHEMICAL PROCESSES (IJCCP )

E-I SSN 2545-5265
P- ISSN 2695-1916
VOL. 10 NO. 6 2024
DOI: 10.56201/ijccp.v10.no6.2024.pg1.16

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Assessment of Heavy Metal Concentrations in Soils at Selected Waste Dump Sites in Abuja Municipal Area Council (Amac), Federal Capital Territory, Nigeria

Igwilo, S.C. , Bello, I.E. , & Magaji J.I

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Abstract

The geographical variations in waste dissemination implies a negative consequences on the adjourning neighbourhood. Heavy metals in solid waste disposed at dumpsites can be detrimental to soil safety and its concentration may vary in season. In this study, the mean concentrations of heavy metals in soils at dumpsites were assessed in both dry and wet seasons. Seventy-two (72) soil samples were collected from three (3) waste disposal sites (Nyanya, Dutse and Karishi) and the control sites. Sampling was done using systematic random sampling technique. In each season, three top and sub-soils samples were collected at 0m, 10m, 20m and 30m way from the dumpsites. Range, mean standard deviation and coefficient of variation were used to describe the concentrations of soil physio-chemical properties in both seasons. Student‘t’ test was use to test for seasonal variation. Result shows that the mean concentrations of soil properties in rain and dry seasons respectively differ, thus; pH (7.01 and 5.98), EC (932.20µS/Cm and 906.86µS/Cm), OM (4.60% and 4.58%), Fe (1.24 mg/Kg and 2.78 mg/Kg), Zn (0.72 mg/Kg and 0.81 mg/Kg), Pb(0.65 mg/Kg and 0.04 mg/Kg). Though, concentrations of soil properties differ between rain and dry seasons, none vary significantly at 95% confidence level. Construction of future dumpsites in the area should follow the design of a modern sanitary landfill system that guarantee protection to the soil.

keywords:

Waste, Dumpsite, Soil, Properties, Seasonal variation

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