Table 1 Lead, cadmium nickel and mercury levels (mg/kg) in commonly consumed food crops
Sample | Pb | Cd | Ni |
|---|---|---|---|
Cocoyam (Colocasia esculenta) | 0.22 | Nd | 0.58 |
Plantain (Musa paradisiaca) | Nd | 0.11 | 1.00 |
Cassava (Manihot spp) | 0.33 | 0.10 | 0.30 |
Yam (Diascoria rotundata) | Nd | 0.11 | 1.04 |
Breadfruit (Artocarpus altilis) | Nd | 0.24 | 1.04 |
Popcorn (Senna didymobotrya) | 0.22 | Nd | 0.31 |
Edible mushroom | 0.22 | 0.10 | 0.49 |
Groundnut (Arachis hypogea) | 0.23 | Nd | 0.99 |
Pentabacta microfila | Nd | Nd | 2.31 |
Irvingia wombolu | 0.80 | Nd | 3.13 |
Vigna subterranean | 1.01 | 0.13 | 2.64 |
Beans (Phaseolus vulgaris) | 0.22 | 0.22 | 2.65 |
Soybean (Glycine max) | 0.46 | 0.24 | 1.72 |
Potato (Ipomea batatas) | Nd | Nd | 1.16 |
(Tetracarpidium conophorum) | 8.52 | 0.14 | 1.92 |
Rice (Oryza sativa) | 61.17 | Nd | Nd |
Maize (Zea mays) | 1.01 | Nd | Nd |
(Brachystegia eurycoma) | 0.90 | Nd | 0.71 |
sorghum (Sorghum bicolor) | Nd | Nd | 0.53 |
Mucuna | Nd | Nd | 0.48 |
Melon (Cucumia melo) | Nd | 0.13 | 0.49 |
Wheat (Triticum spp) | Nd | Nd | 0.39 |
Millet (Penicum Milliaceum) | 3.54 | Nd | 0.44 |
(Detarium microcarpum | 0.22 | 0.13 | 1.21 |