Rice finding 830

Source evidence and comparison details for the Rice profile.

Zafarzadeh et al. 2025

Rice grain from rice mills (milling form not stated) · Cadmium (Cd) · 48 rice samples (~100 g each).

Selected finding and reference

<10 µg/kgNot detected.

48 rice samples (~100 g each). Basis: dry weight per Table 1 caption; Results text states the DL as 0.01 mg/kg wet weight.

All samples below DL 0.01 mg/kg; authors substituted DL/sqrt(2)=0.0071 mg/kg for statistics and risk; not imputed here

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

2022

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

Geographic scope

Brand B

Rice variety or type within one study.

Sampling, analysis and reporting limits

Grain washed with deionized water, oven-dried 80 °C 1 h; HNO3/H2O2 open digestion at 120 °C; Metrohm 797 VA Computrace polarographic (voltammetric) trace analyzer.

All samples below DL 0.01 mg/kg; authors substituted DL/sqrt(2)=0.0071 mg/kg for statistics and risk; not imputed here

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
not_detected<0.01 (ND)*mg/kg x 1000 (LOD)

Table 1 (Concentrations of heavy metals, mg/kg dry weight), Results p.4-5; Results text p.5.

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