Overview
This paper measured Pb alongside Ca, Cu, Fe, and Zn in seven street-hawked foods from Akure Metropolis. The routeable heavy-metal finding is Pb in prepared foods and ready-to-eat street foods, ranging from 0.05 +/- 0.01 to 0.30 +/- 0.01 mg/100 g. The source also contains microbiology results, but those are context rather than HMTc occurrence evidence.
Key numbers
Table 1 reports mineral composition in mg/100 g:
| Code | Food matrix | Cu | Fe | Pb | Zn |
|---|---|---|---|---|---|
| A | Zobo drink | 1.12 +/- 0.01 | 0.26 +/- 0.01 | 0.05 +/- 0.01 | 2.33 +/- 0.01 |
| B | Cooked rice with stew | 1.09 +/- 0.01 | 0.28 +/- 0.01 | 0.07 +/- 0.01 | 1.64 +/- 0.01 |
| C | African star apple | 1.05 +/- 0.01 | 0.20 +/- 0.01 | 0.10 +/- 0.01 | 1.40 +/- 0.01 |
| D | Meat pie | 1.16 +/- 0.01 | 0.31 +/- 0.01 | 0.05 +/- 0.01 | 2.03 +/- 0.01 |
| E | Cucumber | 0.75 +/- 0.03 | 0.26 +/- 0.02 | 0.30 +/- 0.01 | 2.16 +/- 0.01 |
| F | White pap | 0.84 +/- 0.01 | 0.19 +/- 0.01 | 0.05 +/- 0.01 | 1.95 +/- 0.01 |
| G | Smoked fish | 1.03 +/- 0.01 | 0.21 +/- 0.01 | 0.07 +/- 0.01 | 1.75 +/- 0.02 |
The abstract summarizes overall ranges as Ca 24.50-32.00 mg/100 g, Cu 0.75-1.12 mg/100 g, Pb 0.05-0.30 mg/100 g, Fe 0.19-0.31 mg/100 g, and Zn 1.40-2.33 mg/100 g.
Methods (brief)
The study purchased selected street foods in Akure, prepared ash/digests for metal analysis, and measured metals by atomic absorption spectrophotometry. Microbial counts and isolation were conducted separately for food-safety context.
Implications
The paper supports Nigeria-market occurrence context for Pb in ready-to-eat street foods and mixed prepared foods. It is not a utensil-contact study despite the auto-fetch filename; route it to food matrices, not cookware.
Wiki pages this source may touch
- Mixed Meals, Rice-Containing
- Mixed Meals / Prepared Foods
- Fresh Fish
- Fresh Fruit
- Category 5: Beverages
- Lead
Verification notes
The methods text lists some additional candidate foods, but Table 1 and the abstract map seven sample codes to seven foods. The table is the routeable source of numeric concentration data.
Update history
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