Table 3.
Correlations between serum concentrations of individual PFAS.
| Cape Fear | ||||||
|---|---|---|---|---|---|---|
| PFNA | PFDA | PFOS | PFHxS | GenX | Nafion BP2 | |
| PFNA | – | 0.229 | 0.191 | 0.707 b | 0.083 | 0.433 b |
| PFDA | – | – | 0.773 b | 0.014 | 0.504 a | 0.693 b |
| PFOS | – | – | – | 0.091 | 0.308 | 0.477 b |
| PFHxS | – | – | – | – | 0.046 | 0.324 a |
| GenX | – | – | – | – | – | 0.175 |
|
| ||||||
| PAFL | ||||||
| PFNA | PFDA | PFOS | PFBS | |||
| PFNA | – | 0.762 b | 0.739 b | 0.077 | ||
| PFDA | – | – | 0.974 b | 0.129 | ||
| PFOS | – | – | – | 0.116 | ||
Shown are correlation coefficients for PFAS with detection frequency > 30%; Cape Fear River n = 55, PAFL n = 29. Bold indicates significant correlations,
a:
P < .05,
b:
P < 0.01.