Heavy metal burdens of public primary school children related to playground soils and classroom dusts in Ibadan North-West local government area, Nigeria.

Autor: Akinwunmi F; Department of Chemistry, Federal University of Agriculture, Abeokuta, Nigeria. Electronic address: akinwunmifatai2@gmail.com., Akinhanmi TF; Department of Chemistry, Federal University of Agriculture, Abeokuta, Nigeria. Electronic address: tfakins1@yahoo.com., Atobatele ZA; Department of Biochemistry, Federal University of Agriculture, Abeokuta, Nigeria. Electronic address: atobatelezainab@gmail.com., Adewole O; Department of Biochemistry, Federal University of Agriculture, Abeokuta, Nigeria. Electronic address: ayinke03@yahoo.com., Odekunle K; Department of Biochemistry, Federal University of Agriculture, Abeokuta, Nigeria. Electronic address: khendytoyin@yahoo.com., Arogundade LA; Department of Chemistry, Federal University of Agriculture, Abeokuta, Nigeria. Electronic address: aroglaw@yahoo.com., Odukoya OO; Department of Chemistry, Federal University of Agriculture, Abeokuta, Nigeria. Electronic address: ooodukoya@yahoo.com., Olayiwola OM; Department of Statistics, Federal University of Agriculture, Abeokuta, Nigeria. Electronic address: laniyimathew@yahoo.com., Ademuyiwa O; Department of Biochemistry, Federal University of Agriculture, Abeokuta, Nigeria. Electronic address: adelad2@yahoo.com.
Jazyk: angličtina
Zdroj: Environmental toxicology and pharmacology [Environ Toxicol Pharmacol] 2017 Jan; Vol. 49, pp. 21-26. Date of Electronic Publication: 2016 Nov 19.
DOI: 10.1016/j.etap.2016.11.006
Abstrakt: Information about heavy metal burden of children in Nigeria related to playground soils and classroom dusts is lacking. Playground soil, classroom dust, blood and spot urine samples (n=253) were collected from 6 urban and 2 semi-rural public schools in Ibadan North-West, Nigeria. Samples were analysed for Pb, Cu, Zn, Fe and Mn. Mean blood Pb levels in urban area (male, 41.66±8.78μg/dl vs. female, 40.64±5.46μg/dl) were twice as high as those in semi-rural area (male, 19.71±3.73μg/dl vs. female, 20.65±2.26μg/dl). Concentrations of Pb, Cu, Zn, and Fe in soil and dust samples in the urban schools were between 2- to 4-fold greater than that of semi-rural schools. No correlation was observed between blood and dust metals. A positive correlation (r=0.168, p=0.008) was observed between blood Pb and playground soil Pb. Pb burden in the children might be from their schools' playgrounds and other yet unidentified sources.
(Copyright © 2016 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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