Rice finding 800
Source evidence and comparison details for the Rice profile.
Polished white rice (commercial) · Cadmium (Cd) · 113 rice samples (field composites per site; commercial packs).
Selected finding and reference
113 rice samples (field composites per site; commercial packs). Basis: dry weight.
Values below LOD assigned 1/2 LOD by the source for statistics (Section 2.5); medians/min reported as printed
HMI baseline position
Limited data: Held: Cd values of 0.003-0.004 mg/kg are below the stated Cd LOD of 0.009 mg/kg (Section 3.2) and do not equal 1/2 LOD (0.0045); the authors state Cd was close to the LOD and most samples were below LOD, so these medians/minima are censored-substitution artefacts, not quantified concentrations. Missing evidence never means low contamination.
Held: Cd values of 0.003-0.004 mg/kg are below the stated Cd LOD of 0.009 mg/kg (Section 3.2) and do not equal 1/2 LOD (0.0045); the authors state Cd was close to the LOD and most samples were below LOD, so these medians/minima are censored-substitution artefacts, not quantified concentrations.
Reference version and interpretation
Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.
No admitted reference
The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.
Collection period
2014
No year-by-year sample register is reconstructed from this summary.
Geographic scope
Portugal & Spain Polished
Rice variety or type within one study.
Sampling, analysis and reporting limits
Freeze-dried, ball-milled; 1% HNO3 microwave extraction with H2O2 oxidation, IC-ICP-MS (Thermo AS7 column, iCAP Q) for As species; HNO3/H2O2 microwave digestion and ICP-MS for Cd.
Values below LOD assigned 1/2 LOD by the source for statistics (Section 2.5); medians/min reported as printed
Held: Cd values of 0.003-0.004 mg/kg are below the stated Cd LOD of 0.009 mg/kg (Section 3.2) and do not equal 1/2 LOD (0.0045); the authors state Cd was close to the LOD and most samples were below LOD, so these medians/minima are censored-substitution artefacts, not quantified concentrations.
Shared samples and study overlap
Subgroup rows, statistics of the same subgroup and the study total share samples; they are not independent results.
Each table row describes a food/analyte result. Repeated rows do not add independent samples or datasets. No cross-study trend is calculated in this comparison mode.
Reported values, conversion and source locator
| Source statistic | Original result | Displayed unit conversion |
|---|---|---|
| range | 0.003b (0.003–0.049) | mg/kg x 1000 |
Table 1, p.360, Portugal & Spain, Polished row.
No moisture, cooking-yield or species conversion is applied to the original finding above. Any basis conversion used for its HMI comparison is stated separately with the numerical target.