Rice finding 1736

Source evidence and comparison details for the Rice profile.

Desalew et al. 2023

Rice grain unspecified (washed, dried, powdered) · Nickel (Ni) · 3 area composites (3 per region), each of 3 x 0.5 kg farmer samples (27 farmer samples).

Selected finding and reference

<3,000 µg/kgBelow detection limit.

3 area composites (3 per region), each of 3 x 0.5 kg farmer samples (27 farmer samples). Basis: dry weight.

detected but below method LOQ 10.0 mg/kg (10000 µg/kg), i.e. between LOD 3.0 and LOQ 10.0 mg/kg; not quantified, not imputed

Low / Moderate / High rating

No relative rating: reporting limits leave the target median bounded. Overlapping bounds do not establish equal levels or a direction of difference.

Selected comparison

Limits overlapNo compatible same-study subgroup with the same statistic, basis and analyte.Within-study comparisons use the same source, analyte, statistic and analytical method.

Collection period

Collection date unreported

No year-by-year sample register is reconstructed from this summary.

Geographic scope

Metema

Reported growing area.

Sampling, analysis and reporting limits

Hot-plate digestion HNO3:HClO4:H2O2 (4:2:1, 7 mL, 160 °C, 1 h); flame AAS (Buck Scientific 210VGP) with deuterium background correction.

detected but below method LOQ 10.0 mg/kg (10000 µg/kg), i.e. between LOD 3.0 and LOQ 10.0 mg/kg; not quantified, not imputed

Source inconsistency noted (does not affect this value): FAAS rice LOD 3.0 mg/kg / LOQ 10.0 mg/kg (3000/10000 µg/kg) is far above typical rice Ni concentrations; the censored result is uninformative.

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 statisticOriginal resultDisplayed unit conversion
below_LOD<LOQnone (censored); limits mg/kg x 1000

Table 5, row Ni, Rice column Metema; Table 4 (rice LOD/LOQ).

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.

Open the primary publication · HMI source record