Rice finding 50
Source evidence and comparison details for the Rice profile.
Unpolished rice · Total arsenic (tAs) · 9 rice samples (each analysed in triplicate).
Selected finding and reference
9 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
Pka Am Pun rice (Surin province)
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 Pka Am Pun rice ... in the range(s) of 0.077-0.283 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.