Rice finding 118
Source evidence and comparison details for the Rice profile.
Polished white rice (uncooked, as purchased) · Total arsenic (tAs) · Sample count unreported.
Selected finding and reference
Sample count unreported. Basis: dry weight.
All values quantified as reported; source does not state LOD/LOQ or non-detect handling.
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
Collection date unreported
No year-by-year sample register is reconstructed from this summary.
Geographic scope
White Rice (US)
Reported growing area.
Sampling, analysis and reporting limits
~0.1 g powdered sample, HNO3/HCl/H2O2 hotplate wet digestion (modified Akinyele and Shokunbi), Agilent 7900 ICP-MS; total As only (no speciation).
All values quantified as reported; source does not state LOD/LOQ or non-detect handling.
Source inconsistency noted (does not affect this value): Table 1 white-rice statistics may include the 9 rinse-washed results (28 white = 9 washed + 19 unwashed per Table 2; weighted Cd check (19x13 + 9x7.0)/28 = 11.1 µg/kg matches Table 1 white Cd means 11-12), so white-rice values may understate as-sold rice.
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 |
|---|---|---|
| 75th percentile | 75th 157 | none (µg/kg) |
Table 1 (p.4); µg/kg (Dry Weight).
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.