Overview
Makanjuola and Osinfade measured lead, cadmium, manganese, copper, mercury and zinc by flame AAS in five pepper-type samples sold beside the Papa-Abeokuta highway. Results are one mean ± SD per sample in mg/100g, in a single table.
Key numbers
- Bell pepper: lead 0.05±0.00 mg/100g, cadmium 0.01±0.01 mg/100g, mercury 0.00±0.00 mg/100g (results table, p. 2).
- Lead across the five samples ranged from 0.02 to 0.07 mg/100g (abstract and table).
Methods (brief)
Samples were washed, oven-dried at 60 C and ground, wet-digested with hydrogen peroxide, sulfuric, nitric and perchloric acids, and read on a flame AAS. Only reagent blanks and calibration standards are reported.
Evidence Fitness
Five samples, replicates and detection limits not stated, no reference material. The text and table disagree on which sample has the highest lead, and the abstract cadmium range does not match the table. Bell pepper colour is not stated, so this is not linked to the green bell pepper page; basis (likely dry) is not labeled.