Health risk of some metals in maize grains cultivated close to Gosa and Gwagwalada solid waste dumpsites

Autor: Gideon Ogu, Beatrice O. Ojiego, Zainab Bello, Madu Josephine, Kalen E. Audu, Shauibu A. Abdullah, Ibrahim M. K. Gadzama, Paul Bolorunduro
Rok vydání: 2022
Zdroj: Andalasian International Journal of Applied Science, Engineering and Technology. 2:159-171
ISSN: 2797-0442
Popis: Maize is a vital nutritional cereal for the infants, young children and adults. The environment which they are cultivated in Africa could expose to metal accumulations from soils, thereby posing health risks to the consumers. The objectives of this study were determine metal accumulations in maize grains (Zea mays L.) cultivated close to Gosa and Gwagwalada solid waste dumpsites and their health risks via consumption. A total of 36 soil samples (12 each from dumpsite soil, farmland soil and maize grains) were collected and analyzed for some metals [cadmium (Cd), lead (Pb), zinc (Zn), cobalt (Co), copper (Cu), chromium (Cr), nickel (Ni) and mercury (Hg)] using standard atomic adsorption spectrophotometer. The transfer factors and metal health risks in adults (60 kg; 22-48.9 years), young children (35 kg; 6-15 years) and infants (15 kg; 1-6 years) were evaluated using mathematical models. The ranges of metal (mg/kg) detected were 10114.00 to 0.52, 10.45 to 0.001 and 13.62 to 0.001 for dumpsite, farmland and maize grains, respectively. Though, within FAO/WHO and EU safe limits, Zn was significantly (p
Databáze: OpenAIRE