Rice finding 2049
Source evidence and comparison details for the Rice profile.
Polished (white) rice, market · Inorganic arsenic (iAs) · 21 rice samples (63 speciated).
Selected finding and reference
21 rice samples (63 speciated). Basis: dry weight.
not reported; no non-detect handling described
HMI baseline position
Limited data: Held: iAs subset mean 0.16 mg/kg exceeds the China total-As mean 0.14 mg/kg of the full n=124; possible only because the speciated subset (n=21) was a higher-As subset; not a within-sample conflict but should not be read as iAs > tAs. Missing evidence never means low contamination.
Held: iAs subset mean 0.16 mg/kg exceeds the China total-As mean 0.14 mg/kg of the full n=124; possible only because the speciated subset (n=21) was a higher-As subset; not a within-sample conflict but should not be read as iAs > tAs.
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
China
Reported growing area.
Sampling, analysis and reporting limits
Total As by ICP-MS; speciation by HPLC-ICP-MS (methods of Williams et al.).
not reported; no non-detect handling described
Held: iAs subset mean 0.16 mg/kg exceeds the China total-As mean 0.14 mg/kg of the full n=124; possible only because the speciated subset (n=21) was a higher-As subset; not a within-sample conflict but should not be read as iAs > tAs.
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 | N 21; mean 0.16; median 0.12; min 0.07; max 0.38 | mg/kg x 1000 |
Table 1, row 'China', inorganic As columns; p. 1613.
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.