Dinesh Kumar et al. 2025 - Heavy metals in commercially important fish
Dinesh Kumar and colleagues compared heavy-metal concentrations across organs and species in three commercially important fish. The study is routeable for seafood occurrence context because it reports metal concentrations in fish tissues and discusses suitability for human consumption. The paper emphasizes organ-specific variation, so edible-muscle values should be separated from organ values during extraction.
Key numbers
- Metals were quantified by inductively coupled plasma mass spectrometry and expressed in ppm.
- The overall mean concentration ranking reported in the extracted text was Fe 525.23 ppm, Al 275.57 ppm, Zn 29.12 ppm, Mn 5.87 ppm, Cu 3.92 ppm, Cr 1.49 ppm, Ni 0.99 ppm, and Co 0.25 ppm.
- The authors state that Cd and Pb were present at very low concentrations and were often below the limit of quantification.
- The study reports organ-specific and interspecies variability, with supplementary tables carrying detailed fish-tissue values.
Methods (brief)
Fish tissues were dissected, digested, and analyzed by ICP-MS. Results are total element concentrations in ppm. The source does not report methylmercury and does not support mercury speciation.
Implications
Certification: Supports seafood metals context, but any benchmark extraction must isolate edible tissue from non-edible organs.
Courses: Useful for explaining why whole-organism or organ values cannot be silently pooled with fillet values.
App: Can inform seafood context if species and edible portion are retained.
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Verification notes
The paper reports ppm total-element values. Because organ-specific tables are central, downstream extraction should preserve tissue type and should not treat organ means as fillet means.
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.
| Commit | Date | Description |
|---|---|---|
| 6eea0b9 | 2026-05-29 | ingest auto-fetched 2026-05-29 0000 batch 1: 9 source pages |