Rice finding 1594
Source evidence and comparison details for the Rice profile.
Rice grain from rice mills (milling form not stated) · Lead (Pb) · 48 rice samples (~100 g each).
Selected finding and reference
48 rice samples (~100 g each). Basis: dry weight.
no Pb non-detects reported
HMI baseline position
Limited data: The source reports a range, percentile or extreme value; only a mean, median or sample result can be positioned against a reference. Missing evidence never means low contamination.
The source reports a range, percentile or extreme value; only a mean, median or sample result can be positioned against a reference.
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
2022
No year-by-year sample register is reconstructed from this summary.
Geographic scope
Brand H
Rice variety or type within one study.
Sampling, analysis and reporting limits
Grain washed with deionized water, oven-dried 80 °C 1 h; HNO3/H2O2 open digestion at 120 °C; Metrohm 797 VA Computrace polarographic (voltammetric) trace analyzer.
no Pb non-detects reported
Source inconsistency noted (does not affect this value): Pb means of 2-3 mg/kg (all 144 samples >0.2 mg/kg, max 9.88 mg/kg) are roughly an order of magnitude above typical rice-grain Pb surveys; measured by polarographic/voltammetric trace analysis with spike recovery only (no CRM reported) and no Pb detection limit given. Values are as printed; analytica
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 | Minimum 0.4; Maximum 8.12 | mg/kg x 1000 |
Table 1 (Concentrations of heavy metals, mg/kg dry weight), Results p.4-5.
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.