Rice finding 1639
Source evidence and comparison details for the Rice profile.
Rice grain, husk removed by mortar and pestle (dehusked/brown grain), IRRI variety unspecified · Total mercury (tHg) · Sample count unreported.
Selected finding and reference
Sample count unreported. Basis: unspecified (dry-weight basis stated only for soil).
no non-detects reported for grain metals
HMI baseline position
Limited data: Held: Table 5 ADD for Hg Field-I (3.97e-3 mg/kg/day) implies about 126 µg/kg using the ADD/concentration ratio that reproduces every other cell (about 0.0315 kg/kg bw/day, e.g. Pb 3.16 mg/kg -> 9.94e-2); Table 3 prints 1.26×10^-1 µg/kg, a 1000-fold discrepancy. Table 6 also gives identical Hg HQ (2.87) for Fields I and II despite different concentrations. Mean of repeat measurements per field (statistic inferred from 'calc Missing evidence never means low contamination.
Held: Table 5 ADD for Hg Field-I (3.97e-3 mg/kg/day) implies about 126 µg/kg using the ADD/concentration ratio that reproduces every other cell (about 0.0315 kg/kg bw/day, e.g. Pb 3.16 mg/kg -> 9.94e-2); Table 3 prints 1.26×10^-1 µg/kg, a 1000-fold discrepancy. Table 6 also gives identical Hg HQ (2.87) for Fields I and II despite different concentrations. Mean of repeat measurements per field (statistic inferred from 'calc
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
2023
No year-by-year sample register is reconstructed from this summary.
Geographic scope
Field-I rice grain
Sampling site within one study.
Sampling, analysis and reporting limits
HNO3/HClO4 digestion of ~0.5 g, ICP-MS PerkinElmer NexION 2000 in He collision mode.
no non-detects reported for grain metals
Held: Table 5 ADD for Hg Field-I (3.97e-3 mg/kg/day) implies about 126 µg/kg using the ADD/concentration ratio that reproduces every other cell (about 0.0315 kg/kg bw/day, e.g. Pb 3.16 mg/kg -> 9.94e-2); Table 3 prints 1.26×10^-1 µg/kg, a 1000-fold discrepancy. Table 6 also gives identical Hg HQ (2.87) for Fields I and II despite different concentrations. Mean of repeat measurements per field (statistic inferred from 'calc
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 | Field-I Rice grain Hg 1.26×10^-1 | none |
Table 3 (rotated), Rice grain row, page 8 of 16.
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.