Rice finding 2624
Source evidence and comparison details for the Rice profile.
Market rice (type not separated) · Dimethylarsinic acid (DMA) · 6 market rice samples (788 white) in the database, excluding field survey samples; field survey n per Table 3.5; speciation n=45.
Selected finding and reference
6 market rice samples (788 white) in the database, excluding field survey samples; field survey n per Table 3.5; speciation n=45. Basis: unspecified (market rice as purchased; Aberdeen database tables state no dry/fresh basis).
No non-detects in this row.
HMI baseline position
Limited data: Held: average DMA 0.05 mg/kg is below the printed minimum 0.11 mg/kg, which is impossible; also DMA% average 18 with tAs 0.29 implies ~0.05, so the minimum/maximum columns may be misaligned. Missing evidence never means low contamination.
Held: average DMA 0.05 mg/kg is below the printed minimum 0.11 mg/kg, which is impossible; also DMA% average 18 with tAs 0.29 implies ~0.05, so the minimum/maximum columns may be misaligned.
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
purchased Japan, origin Japan
Purchase or reporting market; growing origin not identified.
Sampling, analysis and reporting limits
Total arsenic per Williams et al. procedures (not described in this report) with NIST 1568a rice flour CRM; speciation by HPLC-ICP-MS after TFA extraction (Figure 3.4 caption; inorganic = arsenate + arsenite).
No non-detects in this row.
Held: average DMA 0.05 mg/kg is below the printed minimum 0.11 mg/kg, which is impossible; also DMA% average 18 with tAs 0.29 implies ~0.05, so the minimum/maximum columns may be misaligned.
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 |
|---|---|---|
| mean | average 0.05 | mg/kg x 1000 |
Table 3.7, p.21.
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.