Table 1.
Spearman correlation coefficients (two-tailed) for individual PFAS concentrations in groundwater of APPHR (n = 62). PFBA: perfluorobutanoic acid, PFPeA; perfluoropentanoic acid, PFHxA: perfluorohexanoic acid, PFHpA: perfluoroheptanoic acid, PFOA: perfluorooctanoic acid, PFNA: perfluorononanoic acid, PFDA: perfluorodecanoic acid, PFBS: perfluorobutane sulfonate, PFHxS: perfluorohexane sulfonate, PFOS: perfluorooctane sulfonate.
| PFBA | PFPeA | PFHxA | PFHpA | PFOA | PFNA | PFDA | PFBS | PFHxS | PFOS | |
|---|---|---|---|---|---|---|---|---|---|---|
| PFBA | 1 | |||||||||
| PFPeA | 0.028 | 1 | ||||||||
| PFHxA | 0.145 | 0.603 ** | 1 | |||||||
| PFHpA | −0.051 | 0.291 * | 0.414 ** | 1 | ||||||
| PFOA | 0.106 | 0.475 ** | 0.525 ** | 0.354 * | 1 | |||||
| PFNA | 0.267 * | 0.162 | 0.491 ** | 0.382 ** | 0.512 ** | 1 | ||||
| PFDA | −0.023 | 0.215 | 0.510 ** | 0.275 * | 0.189 | 0.669 ** | 1 | |||
| PFBS | 0.051 | 0.024 | 0.100 | 0.002 | 0.007 | 0.070 | 0.126 | 1 | ||
| PFHxS | 0.204 | 0.178 | 0.371 | 0.223 | 0.161 | 0.362 | 0.130 | 0.418 | 1 | |
| PFOS | −0.021 | 0.163 | 0.441 | 0.523 | 0.095 | 0.613 | 0.818 | 0.075 | 0.382 | 1 |
Notes:
**
Correlation is significant at the 0.01 level (2-tailed).
*
Correlation is significant at the 0.05 level (2-tailed).