Summary
Treated drinking water is kept separate from raw water and historical comparator studies. Only current-study treated-water medians are transcribed.
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 | 9.94 | ng/L | median in treated water; source uses zero for ND in statistical analysis | PDF p5, section 3.1 | Values below MDL assigned zero for statistical analysis (PDF p5). MDLs defined from replicate low-level spikes (p4); numeric analyte limits in unstaged supplementary tables. |
| PFHxA | 9.52 | ng/L | median in treated water; source uses zero for ND in statistical analysis | PDF p5, section 3.1 | Values below MDL assigned zero for statistical analysis (PDF p5). MDLs defined from replicate low-level spikes (p4); numeric analyte limits in unstaged supplementary tables. |
| PFHxS | 8.69 | ng/L | median in treated water; source uses zero for ND in statistical analysis | PDF p5, section 3.1 | Values below MDL assigned zero for statistical analysis (PDF p5). MDLs defined from replicate low-level spikes (p4); numeric analyte limits in unstaged supplementary tables. |
Evidence Fitness
Source classification: primary_measurement. MANIFEST tier: PRIMARY. This is a selected, bounded transcription, not an exhaustive extraction of every result in the paper. Each selected number has its own PDF page or table locator. Values for different matrices, isomers, statistics and aggregate assays are not interchangeable.
Methods (brief)
Targeted HPLC coupled to electrospray triple-quadrupole mass spectrometry; PFAS panel in Table S2, method in PDF p3, QA in p4.
Detection limits and censoring: Values below MDL assigned zero for statistical analysis (PDF p5). MDLs defined from replicate low-level spikes (p4); numeric analyte limits in unstaged supplementary tables.
Limitations
Provenance notes
Citation metadata verified against PDF p1, title, author byline, journal citation or masthead, and DOI.. Article DOI appears in the supplied PDF and matches the MANIFEST case-insensitively. Original file: 2021_Sim_organophosphate-flame-retardants-and-perfluoroalkyl-substances.pdf. SHA-256: 9c71e1c67d1c88d677ee50cbfb089d89da6e3c06891df394f0f4d389bb4013a0. Original MANIFEST remains in the copied packet; discrepancies are listed without modifying it. Commercial analyte synonyms, instrument brands and manufacturer names are generalized in authored index prose.