Summary
Raw and retail milk concentration summaries from Xinjiang are retained separately.
Key numbers
Source-reported values checked against the cited page of the filed PDF. Values are reported as printed, without conversion. These are selected records, not an exhaustive transcription.
| analyte | value | unit | basis | source location | limits and qualifiers |
|---|---|---|---|---|---|
| PFOA | <5.0-151.8 | ng/L | Retail milk; range | PDF p.6 Table 2; limits p.4 Table 1 | PFOA LOD 5, LOQ 15; PFOS LOD 10, LOQ 30 ng/L. Below-LOD concentrations treated as zero by authors (p.5); measured concentrations recovery-corrected (p.4). |
| PFOA | 16.2 | ng/L | Retail milk; mean | PDF p.6 Table 2; limits p.4 Table 1 | PFOA LOD 5, LOQ 15; PFOS LOD 10, LOQ 30 ng/L. Below-LOD concentrations treated as zero by authors (p.5); measured concentrations recovery-corrected (p.4). |
| PFOA | 33.0 | % | Retail milk; frequency above LOD | PDF p.6 Table 2; limits p.4 Table 1 | PFOA LOD 5, LOQ 15; PFOS LOD 10, LOQ 30 ng/L. Below-LOD concentrations treated as zero by authors (p.5); measured concentrations recovery-corrected (p.4). |
| PFOS | <10.0-172.9 | ng/L | Retail milk; range | PDF p.6 Table 2; limits p.4 Table 1 | PFOA LOD 5, LOQ 15; PFOS LOD 10, LOQ 30 ng/L. Below-LOD concentrations treated as zero by authors (p.5); measured concentrations recovery-corrected (p.4). |
| PFOS | 24.5 | ng/L | Retail milk; mean | PDF p.6 Table 2; limits p.4 Table 1 | PFOA LOD 5, LOQ 15; PFOS LOD 10, LOQ 30 ng/L. Below-LOD concentrations treated as zero by authors (p.5); measured concentrations recovery-corrected (p.4). |
| PFOS | 39.6 | % | Retail milk; frequency above LOD | PDF p.6 Table 2; limits p.4 Table 1 | PFOA LOD 5, LOQ 15; PFOS LOD 10, LOQ 30 ng/L. Below-LOD concentrations treated as zero by authors (p.5); measured concentrations recovery-corrected (p.4). |
| PFOS | <10.0-25.1 | ng/L | Raw milk; range | PDF p.6 Table 2; limits p.4 Table 1 | PFOS LOD 10; LOQ 30 ng/L. Below-LOD concentrations treated as zero by authors; recovery-corrected results. |
| PFOS | 2.2 | ng/L | Raw milk; mean | PDF p.6 Table 2; limits p.4 Table 1 | PFOS LOD 10; LOQ 30 ng/L. Below-LOD concentrations treated as zero by authors; recovery-corrected results. |
| PFOS | 12.5 | % | Raw milk; frequency above LOD | PDF p.6 Table 2; limits p.4 Table 1 | PFOS LOD 10; LOQ 30 ng/L. Below-LOD concentrations treated as zero by authors; recovery-corrected results. |
Evidence Fitness
Methods (brief)
Ultrasonic methanol extraction and SPE; HPLC-MS/MS with negative ESI triple-quadrupole MRM (PDF pp.3 to 4).
Targets as printed or genericized: PFOA; PFOS (PDF p.4 Table 1).
Limitations
PFOA raw-milk cells are blank in Table 2 and are not populated by inference. Some detectable PFOS values lie below LOQ; detectable is not synonymous with quantifiable. Yogurt and exposure modeling are not routed. No conversions, risk thresholds, representativeness claims, or safety conclusions are added.
Provenance notes
Local staged PDF copied unchanged. DOI checked in deposited PDF against MANIFEST; no external resolution attempted. Title and citation metadata checked against the PDF first page.
See the cell MISMATCHES.csv for unresolved discrepancies. The legacy MANIFEST analyte field is discovery metadata, not an audited target list.