Table 5.
Daily intake rate (g person-¹day-¹) of heavy metals DIR through consumption of contaminated food crops
| Food crops | Pb | Cd | Ni |
|---|---|---|---|
| Cocoyam (Colocasia esculenta) |
0.0014 |
Nil |
0.0036 |
| Plantain (Musa paradisiaca) |
Nil |
0.0007 |
0.0062 |
| Cassava (Manihot spp) |
0.002 |
0.0006 |
0.0019 |
| Yam (Diascoria rotundata) |
Nil |
0.0007 |
0.0064 |
| Breadfruit (Artocarpus altilis) |
Nil |
0.0015 |
0.0064 |
| Popcorn (Senna didymobotrya) |
0.0014 |
Nil |
0.0019 |
| Edible mushroom |
O.0014 |
0.0006 |
0.0030 |
| Groundnut (Arachis hypogea) |
0.0014 |
Nil |
0.0061 |
| Oil bean (Pentabacta microfila) |
Nil |
Nil |
0.0142 |
|
Irvingia wombolu |
0.0049 |
Nil |
0.0193 |
|
Vigna subterranean |
0.0062 |
0.0008 |
0.0163 |
| Beans (Phaseolus vulgaris) |
0.0014 |
0.0014 |
0.0163 |
| Soybean (Glycine max) |
0.0028 |
0.0015 |
0.0106 |
| Potato (Ipomea batatas) |
Nil |
Nil |
0.0072 |
| Rice (Oryza sativa) |
0.3775 |
Nil |
Nil |
| Maize (Zea mays) |
0.0062 |
Nil |
Nil |
|
Brachystegia eurycoma |
0.0056 |
Nil |
0.0044 |
| Sorghum (Sorghum bicolor) |
Nil |
Nil |
0.0033 |
| Mucuna |
Nil |
Nil |
0.0030 |
| Melon (Cucumia melo) |
Nil |
0.0008 |
0.0030 |
| Wheat (Triticum spp) |
Nil |
Nil |
0.0024 |
| Millet (Penicum Milliaceum) |
0.0218 |
Nil |
0.0027 |
| Detarium microcarpum | 0.0014 | 0.0008 | 0.0075 |
Nil = 0.