Liu et al. 2025 - heavy metals in Nanyang Basin soil-crop system
Liu and coauthors measured As, Cd, Cr, Hg, and Pb in soils and crops from the Nanyang Basin, including 114 peanut samples. The source is routeable to peanuts because crop-tissue concentrations are part of the measured soil-crop system, although the paper is primarily a regional pollution-risk assessment. It should be used as China/Nanyang context rather than silently pooled with other markets.
Key numbers
- Sampling included 5778 surface soil samples, 185 wheat samples, 75 corn samples, 114 peanut samples, and 374 corresponding root-zone soil samples.
- Analytes were As, Cd, Cr, Hg, and Pb.
- The abstract reports that wheat, corn, and peanuts were generally at safe levels, with crop pollution index less than 1.
- The study used pollution index, potential ecological risk, bioconcentration factor, and soil-crop comprehensive quality index methods.
Methods (brief)
The paper measured heavy metals in crop and soil samples and assessed transfer dynamics using BCF and pollution-index methods.
Implications
Certification: China/Nanyang peanut context for multi-metal monitoring. Courses: useful example of soil-crop transfer and jurisdiction-aware evidence. App: supports peanut context only after crop-specific tables are extracted.
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Verification notes
The abstract supplies counts and analytes. Crop pollution index language is not a substitute for concentration tables; exact peanut values require table extraction.
Page history
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