Rice finding 1558
Source evidence and comparison details for the Rice profile.
Rice grain (Oryza sativa), edible part, form not stated · Lead (Pb) · Sample count unreported.
Selected finding and reference
Sample count unreported. Basis: dry weight (oven-dried 70–80 °C).
Detected value; non-detects reported as Nd
HMI baseline position
Limited data: Held: 61.17 mg/kg lead is about 60 times the next-highest crop in the same table and roughly 300 times typical rice lead; no reference material or recovery result is reported, the reported intake (DIR 0.3775) and the stated limit comparisons cannot be reconciled with plausible rice concentrations, so the value is implausible. Missing evidence never means low contamination.
Held: 61.17 mg/kg lead is about 60 times the next-highest crop in the same table and roughly 300 times typical rice lead; no reference material or recovery result is reported, the reported intake (DIR 0.3775) and the stated limit comparisons cannot be reconciled with plausible rice concentrations, so the value is implausible.
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
Ohaji
All samples in the study.
Sampling, analysis and reporting limits
Perchloric/nitric acid digestion of ash; flame AAS (Unicam 929).
Detected value; non-detects reported as Nd
Held: 61.17 mg/kg lead is about 60 times the next-highest crop in the same table and roughly 300 times typical rice lead; no reference material or recovery result is reported, the reported intake (DIR 0.3775) and the stated limit comparisons cannot be reconciled with plausible rice concentrations, so the value is implausible.
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 |
|---|---|---|
| sample_value | 61.17 | mg/kg x 1000 |
Table 1, row "Rice (Oryza sativa)", p.3.
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.