Rice finding 1252

Source evidence and comparison details for the Rice profile.

Wheat et al. 2024

Rice (form not specified; ground before analysis) · Total chromium (Cr) · 82 rice samples (>=500 g each).

Selected finding and reference

53 µg/kg (mean)Mean.

82 rice samples (>=500 g each). Basis: unspecified.

Values <LOD treated as not detected and replaced by 1/2 LOD when calculating means (Section 2.6); ranges appear to be of detected values

HMI baseline position

Limited data: Held: mean 0.053 mg/kg is below the reported range minimum 0.065 mg/kg; consistent with 1/2-LOD substitution for 73% non-detects in the mean while the range covers detects only. Missing evidence never means low contamination.

Held: mean 0.053 mg/kg is below the reported range minimum 0.065 mg/kg; consistent with 1/2-LOD substitution for 73% non-detects in the mean while the range covers detects only.

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

2021–2022

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

Geographic scope

Rice (n = 82)

Purchase or reporting market; growing origin not identified.

Sampling, analysis and reporting limits

microwave digestion HNO3/H2O2; ICP-MS (Thermo iCAP RQ); total As (no speciation).

Values <LOD treated as not detected and replaced by 1/2 LOD when calculating means (Section 2.6); ranges appear to be of detected values

Held: mean 0.053 mg/kg is below the reported range minimum 0.065 mg/kg; consistent with 1/2-LOD substitution for 73% non-detects in the mean while the range covers detects only.

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
mean0.053 bmg/kg x 1000

Table 1, Rice column (Heavy metals, mg/kg); text p.14-15.

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