Rice finding 2616
Source evidence and comparison details for the Rice profile.
Rice composites, all grain types (cooked, dried) · Dimethylarsinic acid (DMA) · 54 rice composites (40 domestic production-weighted + 14 import).
Selected finding and reference
54 rice composites (40 domestic production-weighted + 14 import). Basis: dry weight of cooked composite (50-g rice composites cooked in 18-MOhm water with no residual water, then oven dried and ground before DNAS extraction).
As reported by the source
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
2009
No year-by-year sample register is reconstructed from this summary.
Geographic scope
All 54 composites
All samples in the study.
Sampling, analysis and reporting limits
Microwave total digestion with ICP-MS (total As); dilute nitric acid extraction and speciation (DNAS) and in vitro gastrointestinal extraction, both with IC-ICP-MS (Hamilton PRP-X100, Agilent 7700); iAs = AsIII + AsV.
As reported by the source
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 |
|---|---|---|
| max | concentrations above 180 ng/g, the highest observed concentration in our study | none (ng/g = ug/kg) |
Results, p.057005-6 (DMA concentrations, Figure S3).
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.