Rice finding 48
Source evidence and comparison details for the Rice profile.
Polished rice · Total arsenic (tAs) · 26 rice samples (each analysed in triplicate).
Selected finding and reference
26 rice samples (each analysed in triplicate). Basis: dry weight (sun-dried, oven-dried 60 °C 2 days; paper refers to mg/kg dry weight).
No non-detects reported; analyte-specific LOD/LOQ only in Table S2 (not in text copy); overall LOD 0.09-35.75 µg/kg, LOQ 0.023-42 µg/kg
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
Leb Nok rice
Rice variety or type within one study.
Sampling, analysis and reporting limits
Microwave digestion (HNO3/H2O2, 160 °C) and ICP-MS (Agilent 7900); total As only.
No non-detects reported; analyte-specific LOD/LOQ only in Table S2 (not in text copy); overall LOD 0.09-35.75 µg/kg, LOQ 0.023-42 µg/kg
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 | As concentrations in Leb Nok rice ... in the range(s) of 0.166-0.402 mg kg-1 | mg/kg x 1000 |
Section 3.1 'Heavy metals in rice', pp. 11-16 (manuscript).
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.