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Belew et al. 2024 - metals in peanuts and date palms from Jigjiga markets

Belew and coauthors measured metals in peanut and date palm samples from Jigjiga City markets in Ethiopia. The source is directly routeable to peanuts and provides explicit mean concentrations for Fe, Zn, Cu, As, Pb, and Cr. Date-palm findings are retained as context because no date ingredient/product slug is currently declared here.

Key numbers

  • n=12 total samples: six peanut samples and six date palm samples purchased in February 2024.
  • Peanuts: Fe 12.6 +/- 0.54 mg/kg, Zn 5.3 +/- 0.1 mg/kg, Cu 3.53 +/- 0.33 mg/kg, As 0.001 +/- 0.0 mg/kg, Pb 0.01 +/- 0.0 mg/kg, and Cr 0.02 +/- 0.0 mg/kg.
  • Date palms: Fe 40.23 +/- 2.5 mg/kg, Zn 48.31 +/- 0.8 mg/kg, Cu 10.65 +/- 0.05 mg/kg, As 0.05 +/- 0.002 mg/kg; the abstract continues with additional date-palm values.
  • Hazard index for peanuts was within safe limits; hazard index for date palms exceeded 1.

Methods (brief)

Samples were wet-acid digested and analyzed by flame atomic absorption spectroscopy. The study calculated EDI, THQ, HI, and ILCR for adult males and females.

Implications

Certification: peanut occurrence evidence for As, Pb, and Cr in Ethiopia. Courses: example of low peanut values but different risk profile in date palms. App: supports Ethiopia/Jigjiga market context.

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Verification notes

Peanut means and sample counts were taken from the PDF abstract. Date-palm values are only partially transcribed here and should not be used until full-table extraction.

Page history

The five most recent substantive edits to this page. The full version history lives in git; when DOI minting comes online (see schema docs), each entry below will also link to a version-pinned DataCite DOI.

CommitDateDescription
9658f6b2026-05-30codex sprint 2026-05-30 1055: post-ingest generated checks
7a4c45a2026-05-30ingest auto-fetched 2026-05-30 0950 batch 1: 10 source pages