Rice finding 1469
Source evidence and comparison details for the Rice profile.
Rice grain unspecified (retail) · Lead (Pb) · 18 rice samples (3 digestion replicates each).
Selected finding and reference
18 rice samples (3 digestion replicates each). Basis: unspecified.
mean reported; non-detect handling not stated
HMI baseline position
Limited data: Held: reported mean 0.023 mg/kg is below the stated Pb method LOQ of 0.040 mg/kg; censoring treatment is not described, and the SD (0.002) is implausibly small for an 18-sample retail set (Table 3 SDs are uniformly ~10% of the mean, suggesting analytical rather than between-sample SD). 0% of samples above the EU Pb 0.20 mg/kg ML. Missing evidence never means low contamination.
Held: reported mean 0.023 mg/kg is below the stated Pb method LOQ of 0.040 mg/kg; censoring treatment is not described, and the SD (0.002) is implausibly small for an 18-sample retail set (Table 3 SDs are uniformly ~10% of the mean, suggesting analytical rather than between-sample SD). 0% of samples above the EU Pb 0.20 mg/kg ML.
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
Collection date unreported
No year-by-year sample register is reconstructed from this summary.
Geographic scope
Rice, Madeira market
Purchase or reporting market; growing origin not identified.
Sampling, analysis and reporting limits
Microwave HNO3/H2O2 digestion; GF-AAS for Cd and Pb, CV-AAS (FIMS-400) for Hg.
mean reported; non-detect handling not stated
Held: reported mean 0.023 mg/kg is below the stated Pb method LOQ of 0.040 mg/kg; censoring treatment is not described, and the SD (0.002) is implausibly small for an 18-sample retail set (Table 3 SDs are uniformly ~10% of the mean, suggesting analytical rather than between-sample SD). 0% of samples above the EU Pb 0.20 mg/kg ML.
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 |
|---|---|---|
| mean | Rice | 18 | ... | 0.023 ± 0.002 | No | 0 | mg/kg x 1000 |
Original SD: 0.002 mg/kg.
Table 3, Rice row, p.5.
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.