Risk assessment of potentially toxic elements in agricultural soils and maize tissues from selected districts in Tanzania.


A field survey was conducted to investigate the contamination of potentially toxic elements (PTEs) arsenic (As), lead (Pb), chromium (Cr), and nickel (Ni) in Tanzanian agricultural soils and to evaluate their uptake and translocation in maize as proxy to the safety of maize used for human and animal consumption. Soils and maize tissues were sampled from 40… (More)
DOI: 10.1016/j.scitotenv.2011.11.089


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