Table 1.
Concentration (μg/mL) | Concentration (μg/g) | ||||||||
---|---|---|---|---|---|---|---|---|---|
|
|
||||||||
Spray A | Spray B | Spray C | Spray D | Cloth A | Cloth B | Cloth C | Cloth D | Cloth E | |
6:2FTOH | 10,600 | 25.8 | 3.46 | 3.43 | 1.29 | 3.95 | 38.4 | 7.94 | 9.62 |
8:2FTOH | - | - | - | - | 127 | - | - | - | - |
10:2FTOH | - | - | - | - | 15.5 | - | - | - | - |
6:2FTEO1b | N.Q. | N.Q. | N.Q. | N.Q. | N.Q. | N.Q. | N.Q. | N.Q. | N.Q. |
6:2FTEO2 | 35.2 | 1.08 | 0.193 | 0.194 | 1.29 | 53.3 | 126 | 208 | 244 |
6:2FTEO3 | 129 | 2.55 | 0.8 | 0.804 | 3.64 | 260 | 566 | 746 | 726 |
6:2FTEO4 | 1010 | 16.2 | 8.84 | 8.89 | 28.9 | 2770 | 6140 | 7340 | 5780 |
6:2FTEO5 | 2670 | 42.8 | 33 | 32.1 | 99 | 9420 | 22,100 | 23,400 | 17,200 |
6:2FTEO6 | 2790 | 50.1 | 52.9 | 51.4 | 134 | 12,200 | 29,200 | 33,200 | 21,300 |
6:2FTEO7 | 2200 | 46.8 | 64.6 | 63 | 125 | 12,200 | 29,300 | 30,400 | 20,800 |
6:2FTEO8 | 1720 | 44.3 | 73.4 | 75.9 | 104 | 10,600 | 26,300 | 28,400 | 18,900 |
6:2FTEO9 | 1280 | 35.4 | 76 | 78.3 | 77.9 | 7540 | 21,900 | 21,500 | 15,800 |
6:2FTEO10 | 964 | 28 | 77.6 | 79.7 | 57.2 | 5380 | 16,500 | 17,000 | 11,800 |
6:2FTEO11 | 616 | 17.2 | 67.3 | 66 | 35.7 | 3280 | 11,100 | 10,900 | 7830 |
6:2FTEO12 | 429 | 9.53 | 39.8 | 49.2 | 25 | 1720 | 6800 | 6230 | 4450 |
6:2FTEO13 | 517 | 7.19 | 31.1 | 57.1 | 7.34 | 1680 | 6090 | 5930 | 3120 |
Σionic PFASc | 1.37 | 0.062 | 0.019 | 0.037 | 2.09 | 0.156 | 1.51 | 2.68 | 0.825 |
ΣPFAS | 25,000 | 327 | 529 | 566 | 702 | 67,100 | 176,000 | 185,000 | 128,000 |
TOF measurement | 20,700 (508) |
221 (3) | 202 (2) | 190 (1) | 46,800 (5200) |
44,200 (2200) |
131,500 (2200) |
92,000 (2700) |
73,900 (2900) |
% TOF explained by FTEOs and FTOHs | 60% | 57% | 88% | 99% | 1% | 55% | 48% | 72% | 62% |
TOF measurements are reported as the average of triplicate analysis, with standard deviations in parenthesis.
6:2FTEO1 was unable to be quantified via HPLC–HRMS methods as the other FTEOs were and is denoted as N.Q.
See Table S3 for the list of ionic PFAS quantified.