Rice finding 1447
Source evidence and comparison details for the Rice profile.
Rice ears/grain from harvest (form not stated) · Lead (Pb) · 88 rice/root-soil paired samples (composites of 5 points).
Selected finding and reference
88 rice/root-soil paired samples (composites of 5 points). Basis: unspecified (samples described as 500 g dry composites; analysis basis not stated).
Not stated; detection limits in Table 2 exceed several reported means
HMI baseline position
Limited data: Held: Table 2 crop detection limit for Pb is 0.1 mg/kg, above the reported mean 0.057 mg/kg; how values below the detection limit were handled is not stated, so the mean may include substituted or sub-LOD values. Missing evidence never means low contamination.
Held: Table 2 crop detection limit for Pb is 0.1 mg/kg, above the reported mean 0.057 mg/kg; how values below the detection limit were handled is not stated, so the mean may include substituted or sub-LOD values.
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
Collection date unreported
No year-by-year sample register is reconstructed from this summary.
Geographic scope
Rice (Yuyao City)
Sampling site within one study.
Sampling, analysis and reporting limits
Cr, Cu, Pb, Cd by ICP-MS after HNO3 digestion; As and Hg by AFS after HNO3-HClO4 digestion.
Not stated; detection limits in Table 2 exceed several reported means
Held: Table 2 crop detection limit for Pb is 0.1 mg/kg, above the reported mean 0.057 mg/kg; how values below the detection limit were handled is not stated, so the mean may include substituted or sub-LOD values.
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 |
|---|---|---|
| mean | Rice Pb 0.057 (56.89) | mg/kg x 1000 |
Table 3, Rice row, p.3708.
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.