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Keyword = speciation
Journal = Industrial and Domestic Waste Management
Evaluation of Bioavailable Contents of Arsenic, Copper and Zinc in Some Poultry Farms Soils in Osun State, Nigeria
Ind. Domest. Waste Manag.
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Abstract This work evaluated the mobility and bioavailability of arsenic, copper and zinc
in chosen poultry farmlands situated within Osun State, Nigeria in respect to the soil physicochemical
characteristics. The site was split into 12 zones of about equal sites. Soil samples
were collected over a period of four months from each zone for analysis of soil physicochemical
characteristics and As, Cu and Zn contents in sequential fraction of the soil sample.
Sequential fractionation of soil samples were conducted utilizing reworked Tessier technique,
utilizing Flame Atomic Absorption Spectrophotometer. Mean of total content (mg/kg) and
percentage bioavailability were: As 470.48±48 (31.16%), Cu 62.95±10.61 (29.02%) and Zn
125.58±20.74 (26.67%), respectively. Analysis of variance and correlation analyzes indicated
that soil pH, % clay, % organic carbon, cation exchange capacity, and metal speciation in soil
control metal mobility and bioavailability in the poultry farm soil. The mean contents of As,
Cu and Zn in soil in the sampling area were usually more than those of the control site,
indicating some degrees of contamination of the poultry farm soil by these metals. Also, the
mean contents of As in some zones were considerably greater (p[...] Read more. Full text