Summary
Descriptive statistics from citizen-submitted egg testing reports. The study models censored values before statistical analyses.
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 |
|---|---|---|---|---|---|
| PFOS | 2.872 | μg/kg wet weight | Backyard chicken eggs; Mean | PDF p.9 Table 2; censoring p.5 | Laboratory LOQs vary: 0.10, 0.01 or 0.05 µg/kg in retained laboratories. Values below LOQ modeled by authors; statistics are not individual uncensored measurements. |
| PFOS | 0.1819 | μg/kg wet weight | Backyard chicken eggs; SE | PDF p.9 Table 2; censoring p.5 | Laboratory LOQs vary: 0.10, 0.01 or 0.05 µg/kg in retained laboratories. Values below LOQ modeled by authors; statistics are not individual uncensored measurements. |
| PFOS | 1.600 | μg/kg wet weight | Backyard chicken eggs; Median | PDF p.9 Table 2; censoring p.5 | Laboratory LOQs vary: 0.10, 0.01 or 0.05 µg/kg in retained laboratories. Values below LOQ modeled by authors; statistics are not individual uncensored measurements. |
| PFOA | 0.224 | μg/kg wet weight | Backyard chicken eggs; Mean | PDF p.9 Table 2; censoring p.5 | Laboratory LOQs vary: 0.10, 0.01 or 0.05 µg/kg in retained laboratories. Values below LOQ modeled by authors; statistics are not individual uncensored measurements. |
| PFOA | 0.0165 | μg/kg wet weight | Backyard chicken eggs; SE | PDF p.9 Table 2; censoring p.5 | Laboratory LOQs vary: 0.10, 0.01 or 0.05 µg/kg in retained laboratories. Values below LOQ modeled by authors; statistics are not individual uncensored measurements. |
| PFOA | 0.110 | μg/kg wet weight | Backyard chicken eggs; Median | PDF p.9 Table 2; censoring p.5 | Laboratory LOQs vary: 0.10, 0.01 or 0.05 µg/kg in retained laboratories. Values below LOQ modeled by authors; statistics are not individual uncensored measurements. |
| PFOA | 7.80 | μg/kg wet weight | Backyard chicken eggs; Maximum | PDF p.9 Table 2; censoring p.5 | Laboratory LOQs vary: 0.10, 0.01 or 0.05 µg/kg in retained laboratories. Values below LOQ modeled by authors; statistics are not individual uncensored measurements. |
| PFNA | 0.161 | μg/kg wet weight | Backyard chicken eggs; Mean | PDF p.9 Table 2; censoring p.5 | Laboratory LOQs vary: 0.10, 0.01 or 0.05 µg/kg in retained laboratories. Values below LOQ modeled by authors; statistics are not individual uncensored measurements. |
| PFNA | 0.0122 | μg/kg wet weight | Backyard chicken eggs; SE | PDF p.9 Table 2; censoring p.5 | Laboratory LOQs vary: 0.10, 0.01 or 0.05 µg/kg in retained laboratories. Values below LOQ modeled by authors; statistics are not individual uncensored measurements. |
| PFNA | 0.070 | μg/kg wet weight | Backyard chicken eggs; Median | PDF p.9 Table 2; censoring p.5 | Laboratory LOQs vary: 0.10, 0.01 or 0.05 µg/kg in retained laboratories. Values below LOQ modeled by authors; statistics are not individual uncensored measurements. |
| PFNA | 7.90 | μg/kg wet weight | Backyard chicken eggs; Maximum | PDF p.9 Table 2; censoring p.5 | Laboratory LOQs vary: 0.10, 0.01 or 0.05 µg/kg in retained laboratories. Values below LOQ modeled by authors; statistics are not individual uncensored measurements. |
| PFHxS | 0.054 | μg/kg wet weight | Backyard chicken eggs; Mean | PDF p.9 Table 2; censoring p.5 | Laboratory LOQs vary: 0.10, 0.01 or 0.05 µg/kg in retained laboratories. Values below LOQ modeled by authors; statistics are not individual uncensored measurements. |
| PFHxS | 0.0157 | μg/kg wet weight | Backyard chicken eggs; SE | PDF p.9 Table 2; censoring p.5 | Laboratory LOQs vary: 0.10, 0.01 or 0.05 µg/kg in retained laboratories. Values below LOQ modeled by authors; statistics are not individual uncensored measurements. |
| PFHxS | 0.000 | μg/kg wet weight | Backyard chicken eggs; Median | PDF p.9 Table 2; censoring p.5 | Laboratory LOQs vary: 0.10, 0.01 or 0.05 µg/kg in retained laboratories. Values below LOQ modeled by authors; statistics are not individual uncensored measurements. |
| PFHxS | 11.90 | μg/kg wet weight | Backyard chicken eggs; Maximum | PDF p.9 Table 2; censoring p.5 | Laboratory LOQs vary: 0.10, 0.01 or 0.05 µg/kg in retained laboratories. Values below LOQ modeled by authors; statistics are not individual uncensored measurements. |
1 further transcribed values remain under review and are not shown.
Evidence Fitness
Methods (brief)
Citizen-submitted accredited laboratory reports; full extraction and instrument protocols unavailable for all laboratories (PDF pp.3 to 5). No LC-MS/MS method is inferred.
Targets as printed or genericized: PFOS; PFOA; PFNA; PFHxS (PDF p.4 Table 1).
Limitations
Voluntary submissions and repeat sites limit independence. A maximum-value conflict is retained, not resolved. Laboratory and testing-site names are replaced by generic descriptors. 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.