Table 2.
Volatile PFASs detected in the air above the industrial WWTP influent
| Detected analyte | Volatile PFASs concentration in each sampling day (ng/m3 air) | Method detection limit (ng/m3) | Method quantification limit (ng/m3) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |||
| 6:2-FTO | n.d. | n.d. | 115 | 9.5 | 6.7 | 14.6 | 6.1 | 2.7 | 1 | 3 |
| 8:2-FTO | n.d. | n.d. | 7.4 | 2.9 | <LOQ | 6.6 | 6.5 | <LOQ | 1 | 3 |
| 10:2-FTO | n.d. | 215 | 31.6 | 6.4 | 12.3 | 56.7 | 37.8 | 10.7 | 1 | 3 |
| 6:2-FTAC | <LOQ | n.d. | n.d. | n.d. | <LOQ | <LOQ | <LOQ | <LOQ | 40 | 120 |
| 8:2-FTAC | n.d. | n.d. | n.d. | n.d. | 645 | 1603 | 329 | 163 | 40 | 120 |
| 6:2-FTMAC | 1370 | 33,100 | 2340 | 369 | 471 | 1870 | 1200 | 854 | 1 | 3 |
| 8:2-FTMAC | n.d. | 22.3 | n.d. | n.d. | n.d. | 7.2 | n.d. | n.d. | 1 | 3 |
n.d. not detected