Ahaneku ISIGUZO, Igbojionu OKWUDIRI, Christopher OBİNECHE

Assessment of Physicochemical Properties of Soil at Old Nekede Dumpsite Owerri, Imo State, Nigeria

Developing countries, such as Nigeria with inadequate waste disposal system unit or regulatory process is at risk of metal land. The study was conducted near a dumpsite located along the old Nekede road in Owerri West L.G.A of Imo State. After the removal of the overlying waste, samples were collected from five (5) different control points of open waste dumpsites (deposit point, North point, south point, east point and west point), 100m away from each other and at a depth of three different dimension (0-15cm, 15-30cm and 30-45m) on an open waste dumpsite using a Dutch soil auger. The data analysis was done using, Excel and analysis of variance (ANOVA) at 5% level of probability using SPSS version 2008 software packages. The Iron (Fe) concentrations in deposit point of depth 0-15cm, 15-30cm, 30-45cm, ranged from 202.85mg/kg, 164.47mg/kg, and 131.33mg/kg respectively. This indicates that successive extractions of metal in the deposit point have high level of iron in waste soil which is potentially toxic to plants if not regulated, this shows that other control point of waste soils in dumpsite area have minimum concentration of Iron (Fe) content which is suitable or permissible for plant growth. Zinc (Zn) concentrations in deposit point of depth 0-15cm, 15-30cm, 30-45cm ranged from 147.5mg/kg, 67.22mg/kg, 26.13mg/kg, this indicates that results of the successive extractions of zinc in the samples have it contents within the permissible limits of 300mg/kg for practice of agriculture. Therefore, waste soils in the dumpsites locations points have low content of Zinc (Zn).

Keywords:

Dumpsite Soils, Heavy-metals, Physicochemical Status,

PDF

___

Adelekan B.A and Abegunde K.D (2011).Heavy metals contamination of soil and groundwater at automobile mechanic villages in Ibadan, Nigeria Intl. journal physical science 6(5):1045-1058.
Adelekan B.A and Alawode A.O (2011).Contributions of refuse dumps to heavy metal concentrations in soil profile and groundwater in ibadan, Nigeria. Journal of Applied Biosci. 40: 7227-2737
Anikwe MAN and Nwobodo KCA(2001).Long term effect of municipal waste disposal on soil properties and productivity of sites used for urban agriculture in Abakaliki, Nigeria. Biores. Technology 83(3): 241-250.
APHA(1995).American Public Health association. Standard Methods for the Examination of Water and Wastewater,19th edn APHA-AWWA-WPCF,Washington, DC.pp.525-987
Awomeso J.A, Taimo A.M.,Gbadebo A.M and Arimoro A.O(2010). Waste disposal and Pollution management in urban areas. A workable remedy for the environment in developing countries. American Journal of Environmental Sciences, 6(1):26-32
Bacud L.,Sioco F., and majam J.(1994). A descriptive study of the water quality of drinking wells around payatas dumpsite, unpublished Bsc Thesis, University of Philippines College of Public Health 12-24
Brady N C (1996). The nature and properties of soils, 11th ed.; McMillan: New York. P 621.
FAO(1976). A framework for land Evaluation. FAO Bulletin 32, FAO/UNESCO, France.
Helmore K, and Ratta A (1995). The surprising yields of urban agriculture, choices. The human Development magazines of UNDP 4(1)
Obineche C.I.,Emekachris C.C., Igbojionu D.O and Obani O.(2016) Quality Assessment of Direct Harvested Rainwater Near Nekede Dumpsite in Owerri West L.G.A. Imo State, Nigeria.Umudike journal of Engineering and Technology (UJET) (Under Review)
Siasu (2008). Assessing the effect of a dumpsite to groundwater quality in payatas Philippines American Journal of Environmental sciences 4(4), 276.
USEPA (1996). Test Methods for Evaluating Soild Waste. Physical/ Chemical Methods 3rd Edn, method 3050B, Acid Disgestion of Sediment, Sludges and Soils, USEPA, Washington,DC,SW-846.
WHO (1993). Standard maxima for metals in agricultural soils