Rice finding 1750
Source evidence and comparison details for the Rice profile.
Rice grain unspecified (packed retail rice) · Nickel (Ni) · 15 rice samples (~250 g), five per brand/type, 10 types; Section 2.1 also says 210 packed rice samples (15-20 kg) were selected from markets.
Selected finding and reference
15 rice samples (~250 g), five per brand/type, 10 types; Section 2.1 also says 210 packed rice samples (15-20 kg) were selected from markets. Basis: dry weight.
no non-detects reported
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
2013
No year-by-year sample register is reconstructed from this summary.
Geographic scope
Domestic cultivated rice (3 types)
Reported growing area.
Sampling, analysis and reporting limits
AOAC 999.11 dry ashing at 450 °C after drying at 105 °C 48 h, 6M HCl, residue in 0.1 M HNO3; flame and graphite furnace AAS (Shimadzu AA-680); triplicate digestion, three readings each.
no non-detects reported
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 | Nickel levels in domestic rice samples analyzed in the present study varied from 0.72 to 0.79 mg·kg–1. | mg/kg x 1000 |
Section 3.1.
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.