Rice finding 493
Source evidence and comparison details for the Rice profile.
Raw rice (sun-dried rough/paddy grain with husk) · Total arsenic (tAs) · 3 field sampling points (3 per variety, each 2 m2; text says three points in each of two locations, reported n=3).
Selected finding and reference
3 field sampling points (3 per variety, each 2 m2; text says three points in each of two locations, reported n=3). Basis: dry weight.
none; all samples above instrumental LOD (stated)
HMI baseline position
Limited data: No compatible reference units exist for this analyte, material and basis after the complete rice ledger. Missing evidence never means low contamination.
No compatible reference units exist for this analyte, material and basis after the complete rice ledger.
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
BRRI dhan28
Rice variety or type within one study.
Sampling, analysis and reporting limits
HNO3 + HClO4 heating-block digestion (0.5 g); total As by flow-injection HG-AAS (Perkin-Elmer AAnalyst 100, FIAS 100) with matrix-matched standards.
none; all samples above instrumental LOD (stated)
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 | In BRRI dhan28, mean arsenic concentrations (mg kg-1 dry weight) were 46.3±1.4 in root, 1.7±0.1 in straw and 0.6±0.0 in raw rice. | mg/kg x 1000 |
Original SD: 0 mg kg-1 dry weight.
Results 'Arsenic content in tissues of rice plant', manuscript lines 197-200 (Table 3 cited but not printed in text copy).
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.