Summary of the rotated factor pattern in principal component analysis
| PC 1 | PC 2 | |
|---|---|---|
| PFOA | 0.831 |
0.277 |
| PFOS | 0.776 |
0.481 |
| PFHxS | 0.834 |
0.157 |
| Me-PFOSA-AcOH | 0.569 |
−0.117 |
| PFNA | 0.521 |
0.723 |
| PFDeA | 0.199 | 0.910 |
| PFUA | −0.076 | 0.919 |
*High loading of ≥0.4.
Me-PFOSA-AcOH: 2-(N-methyl-perfluorooctane sulfonamido) acetic acid, PC: principal component, PFDeA: perfluorodecanoate, PFHxS: perfluorohexane sulfonate, PFNA: perfluorononanoate, PFOA: perfluorooctanoate, PFOS: perfluorooctane sulfonate, PFUA: perfluoroundecanoate