FDA 2011 - Apple Juice Arsenic Speciation
FDA’s 2011 ORA apple-juice sampling assignment reports 94 single-strength apple-juice samples with total arsenic, inorganic arsenic, DMA, and MMA results in ppb. The Index routes the inorganic-arsenic rows to fruit-juices-apple-containing as direct species-specific apple-juice evidence and to fruit-juice-not-canned as apple-only subcategory context.
Structured Extract
data/evidence/category5_apple_juice_arsenic_speciation_samples.csv: sample-level extract with FDA sample IDs, total arsenic, inorganic arsenic, DMA, MMA, original reported values, lower-bound ppb values, and censoring notes.data/evidence/category5_apple_juice_arsenic_speciation_summary.csv: deterministic lower-bound iAs summary rows for apple-containing juice and broader not-canned juice context.
Key Numbers
| Scope | N | Lower-bound p50 | Lower-bound p90 | Lower-bound p95 | Max |
|---|---|---|---|---|---|
| Inorganic arsenic in single-strength apple juice | 94 | 4.9 ppb | 7.7 ppb | 8.2 ppb | 9.8 ppb |
FDA reports Trace (TR) when species results are above the limit of detection and below the limit of quantitation. The generated lower-bound summary treats those TR cells as 0 ppb, preserves quantified cells as reported, and records the calculation rule in the evidence register. No total-arsenic value is substituted for inorganic arsenic.
Evidence Fitness
This is EF-2 reconstructable evidence: the source table provides sample-level values and the lower-bound percentiles are deterministic nearest-rank calculations from the checked sample extract. It is stronger than a narrative or mean-only source, but it remains one historical FDA dataset and should not be published as an HMTc row-standard aggregate by itself.
Limitations
- The dataset is apple juice only; it does not resolve non-apple fruit juices or full not-canned fruit-juice aggregation.
- The table does not make current-market claims or brand rankings.
TRhandling creates a documented lower-bound summary, not a source-reported percentile.- Total arsenic remains separate from inorganic arsenic, and DMA/MMA are not combined into the iAs value.