Rice finding 131
Source evidence and comparison details for the Rice profile.
Brown (natural) rice · Total arsenic (tAs) · 9 retail packages (400 g, 4 x 100 g), each analysed in triplicate.
Selected finding and reference
9 retail packages (400 g, 4 x 100 g), each analysed in triplicate. Basis: dry weight (text: 'ng g−1 (d.w.)').
all samples quantified
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
Brown rice sold in Poland (B1-B9)
Purchase or reporting market; growing origin not identified.
Sampling, analysis and reporting limits
tAs: HG-ICP OES after microwave-assisted closed-vessel HNO3 digestion; iAs: species-selective HG-ICP OES (KI-ascorbic acid pre-reduction, 10 M HCl) after ultrasound-assisted aqua regia extraction.
all samples quantified
Source inconsistency noted (does not affect this value): the Conclusions state 'the i-As concentration within 172–233 ng g−1', which is the tAs range, not the iAs range (68–221).
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 | t-As determined in analyzed brown rice samples varied between 172 and 233 ng g−1 (Table 4: 172.2 ± 7.9 to 233.0 ± 6.4) | ng/g x 1 (none) |
Table 4 (p. 592, Food Anal Methods 2019 12:592-593); Application section.
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.