Rice finding 197
Source evidence and comparison details for the Rice profile.
Rice grain, field collected (form not stated) · Total arsenic (tAs) · 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 (field-collected grain; basis not stated).
No non-detects in this row; source reports summary values only.
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
field USA Arkansas
Sampling site within one study.
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; source reports summary values only.
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 | rice USA Arkansas grain 0.08-0.43 0.2 0.18 6 | mg/kg x 1000 |
Table 3.6, p.19.
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.