Rice finding 815
Source evidence and comparison details for the Rice profile.
Polished white rice (uncooked, as purchased) · Cadmium (Cd) · Sample count unreported.
Selected finding and reference
Sample count unreported. Basis: dry weight.
All values quantified as reported; source does not state LOD/LOQ or non-detect handling.
Low / Moderate / High rating
Direct comparison only: the reported summaries or non-overlapping reporting bounds establish the displayed descriptive direction, but do not supply an eligible reference distribution for Low / Moderate / High. A reporting bound remains a bound; equal rounded summaries do not establish equivalence.
Selected comparison
Lower6.5 versus 17.4 µg/kgWhite Rice (US): 6.5 µg/kg (median); brown rice (Brown Rice): 17.4 µg/kg (median). Table 1 (p.4); µg/kg (Dry Weight); reference Table 1 (p.4); µg/kg (Dry Weight).Same source, analyte, statistic, basis and analytical method. Subgroups can share samples with the study total. A descriptive difference, not a significance test, treatment effect or safety judgment.Collection period
Collection date unreported
No year-by-year sample register is reconstructed from this summary.
Geographic scope
White Rice (US)
Reported growing area.
Sampling, analysis and reporting limits
~0.1 g powdered sample, HNO3/HCl/H2O2 hotplate wet digestion (modified Akinyele and Shokunbi), Agilent 7900 ICP-MS; total As only (no speciation).
All values quantified as reported; source does not state LOD/LOQ or non-detect handling.
Source inconsistency noted (does not affect this value): Table 1 white-rice statistics may include the 9 rinse-washed results (28 white = 9 washed + 19 unwashed per Table 2; weighted Cd check (19x13 + 9x7.0)/28 = 11.1 µg/kg matches Table 1 white Cd means 11-12), so white-rice values may understate as-sold rice.
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 |
|---|---|---|
| median | 50th 6.5 | none (µg/kg) |
Table 1 (p.4); µg/kg (Dry Weight).
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.