Rice finding 286
Source evidence and comparison details for the Rice profile.
Rice (Oryza sativa) grain, form not stated, collected from the field · Total arsenic (tAs) · Sample count unreported.
Selected finding and reference
Sample count unreported. Basis: unspecified (soil reported as dry weight; rice basis not stated).
no non-detects 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
Collection date unreported
No year-by-year sample register is reconstructed from this summary.
Geographic scope
Joypurhat
Reported growing area.
Sampling, analysis and reporting limits
HNO3/H2O2 microwave digestion; flame AAS at 197 nm.
no non-detects reported
Source inconsistency noted (does not affect this value): methods state only 5 rice samples were collected in total (implying one per upazila), yet Table 1 prints a range for each upazila; arsenic determined by flame AAS at 197 nm without hydride generation, which is unusually insensitive for sub-mg/kg grain As; no LOD, CRM or recovery reported.
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 | 0.16-0.71 | mg/kg x 1000 |
Table 1, Rice row, Joypurhat, 'Range of Arsenic content (mgkg-1)', p. 32.
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.