Rice finding 1734
Source evidence and comparison details for the Rice profile.
Rice grain (form not stated; dried and powdered); sela (parboiled) rice · Nickel (Ni) · 24 rice samples (24 per type); each digest analysed in triplicate.
Selected finding and reference
24 rice samples (24 per type); each digest analysed in triplicate. Basis: dry weight (oven-dried 65 °C; Table 2 does not state basis explicitly).
no non-detects reported; no LOD/LOQ 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
2016–2017
No year-by-year sample register is reconstructed from this summary.
Geographic scope
Rice2 (n = 24), rice sela
Rice variety or type within one study.
Sampling, analysis and reporting limits
0.5 g dried sample digested in HNO3 then HClO4 at 90 °C; ICP-MS (Agilent 7500 CX) at Institute of Urban Environment, CAS Xiamen.
no non-detects reported; no LOD/LOQ reported
Source inconsistency noted (does not affect this value): mean Ni of ~14 mg/kg in rice grain is one to two orders of magnitude above typical published rice Ni and is near-identical to the paper's fruit and vegetable Ni means (10–17 mg/kg), suggesting a systematic analytical or reporting problem; Table 4 rice Ni HRI (1.02e-2 adults) is also inconsistent wit
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 | 8.99–15.43 | mg/kg x 1000 |
Table 2, Cereal crops, Rice2 (n = 24) row, column Ni; p.4.
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.