Tweij 2018 - Lead and cadmium in carrots and cabbage

This market study measured lead and cadmium in carrots and cabbage available locally, with origin labels for Iraqi and Iranian products. It is routeable for carrot and cabbage occurrence context, especially for lead.

Key numbers

  • The highest lead concentrations were reported in Iranian green cabbage at 1.478 ppm and Iraqi green cabbage at 1.344 ppm.
  • The lowest lead concentration noted in the abstract was Iraqi orange carrots at 0.201 ppm.
  • The highest cadmium concentrations were Iranian cabbage at 0.047 ppm and Iranian green cabbage at 0.046 ppm.
  • The lowest cadmium concentrations were Iraqi violet carrots at 0.035 ppm and Iraqi yellow carrots at 0.040 ppm.

Methods

The paper reports Pb and Cd concentrations for carrot and cabbage market samples. The extracted PDF text preserves the abstract’s numerical summary more cleanly than the full table layout.

Implications

The source supports root-vegetable and non-root-vegetable occurrence context for Iraq-market samples and imported produce identified by the authors. Because the clearest extracted values are summary extremes, route the source cautiously for quantitative pooling unless the original tables are rechecked.

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Verification notes

The source provides ppm values and distinguishes carrot color/origin categories. No consumer brand names were transcribed.

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
ce3e07c2026-05-28activation | Vercel DATACITE env slots set, curators.md filled with founder entry + six scoped reviewer invitations, peer-review onboarding playbook drafted
51400b92026-05-28audit-queue: gasparik2017-wild-boar-slovakia-metals audited-revised