Heavy metal burdens of public primary school children related to playground soils and classroom dusts in Ibadan North-West local government area,Nigeria |
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| Institution: | 1. Department of Chemistry, Federal University of Agriculture, Abeokuta, Nigeria;2. Department of Biochemistry, Federal University of Agriculture, Abeokuta, Nigeria;3. Department of Statistics, Federal University of Agriculture, Abeokuta, Nigeria;1. Department of Health Toxicology, School of Public Health, Central South University, Changsha 410078, PR China;2. Hunan Provincial Centers for Disease Control and Prevention, Changsha 410005, PR China;1. College of Geography and Environment, Shandong Normal University, Ji’nan, PR China;2. State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, PR China;3. School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, PR China;1. School of the Environment, Henan University of Technology, Zhengzhou, Henan, 450001, China;2. Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO, 80523-1170, USA;3. U. S. Environmental Protection Agency, National Risk Management Research Laboratory, Cincinnati, OH, 45268, USA;1. Institute of Geophysics, Polish Academy of Sciences, Ks. Janusza 64, 01-452 Warsaw, Poland;2. Faculty of Geology, University of Warsaw, ?wirki i Wigury 93, 02-089 Warsaw, Poland;3. Faculty of Geography and Regional Studies, University of Warsaw, Krakowskie Przedmie?cie 30, 00-927 Warsaw, Poland;1. Department of Psychiatry, Hospital Universitario de Getafe, Carretera de Toledo km.12.5 28905, Getafe, Madrid, Spain;2. Department of Laboratory Medicine, IML, IdiSSC, Hospital Clínico San Carlos, Calle Prof. Martín Lagos s/n, 28040, Madrid, Spain;3. Department of Neurology, Hospital de la Zarzuela, Calle de Pléyades 25, 28023, Madrid, Spain;4. Department of Epidemiology, IdiSSC, Hospital Clínico San Carlos, Calle Prof. Martín Lagos s/n, 28040, Madrid, Spain;5. Department of Public Health, University Francisco de Vitoria, Carretera Pozuelo a Majadahonda, Km 1.800, 28223 Pozuelo de Alarcón, Madrid, Spain;6. Department of Internal Medicine, Department of Medicine, Faculty of Medicine, Universidad Complutense de Madrid, IdiSSC, Hospital Clínico San Carlos, Calle Prof. Martín Lagos s/n, 28040, Madrid, Spain;7. Department of Pediatrics, Department of Public Health, Gynecology and Pediatrics, Faculty of Medicine, Universidad Complutense de Madrid, IdiSSC, Hospital Clínico San Carlos, Calle Prof. Martín Lagos s/n, 28040, Madrid, Spain |
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| Abstract: | 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 ± 8.78 μg/dl vs. female, 40.64 ± 5.46 μg/dl) were twice as high as those in semi-rural area (male, 19.71 ± 3.73 μg/dl vs. female, 20.65 ± 2.26 μg/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. |
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| Keywords: | Heavy metal burden Children Playground soil Classroom dust Nigeria |
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