4.7 Article

High density polyethylene (HDPE) and thermoplastic polyurethane (TPU) wristbands as personal passive samplers monitoring per- and polyfluoroalkyl substances (PFASs) exposure to postgraduate students

Journal

JOURNAL OF HAZARDOUS MATERIALS
Volume 446, Issue -, Pages -

Publisher

ELSEVIER
DOI: 10.1016/j.jhazmat.2022.130652

Keywords

Per-and polyfluoroalkyl substances (PFASs); High density polyethylene (HDPE) wristband; Thermoplastic polyurethane (TPU) wristband; Passive samplers; PFASs exposure

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This study created two wristbands to monitor personal exposure to PFASs. The results showed that HFPO-DA was the predominant PFASs in the wristbands, with higher concentrations found in the TPU wristbands. The gender and grade of students had moderate effects on PFASs distribution in the wristbands. The study suggests that HDPE and TPU wristbands can be effective tools for monitoring personal PFAS exposure.
Per-and polyfluoroalkyl substances (PFASs) present adverse effects for human health, which result in strong needs for reliable tools monitoring personal exposure to PFASs. This study manufactured two wristbands of high density polyethylene (HDPE) and thermoplastic polyurethane (TPU), and used the wristbands to monitor PFASs personal exposure. The analytical method was developed to measure 32 PFASs in the paired HDPE and TPU wristbands worn by 60 postgraduates. Twenty-nine of 32 PFASs were detected and hexafluoropropylene oxide dimer acid (HFPO-DA) was predominant individual PFASs with median concentrations of 337 and 554 pg/g for HDPE and TPU wristbands respectively. The gender and grade of students had moderate effects on PFASs distribution in the wristbands. Higher PFASs levels were determined in the two wristbands worn by the male students compared to the females, and the greatest PFASs concentration was observed in the wristbands worn by the first-year postgraduates, follow by second -and third-year postgraduates. Additionally, significant correlations between paired HDPE and TPU wristbands were observed for perfluorobutanoic acid (PFBA), perfluorohexane sulfonic acid (PFHxS), perfluoroheptane sulfonic acid (PFHpS), perfluorooctane sulfonic acid (PFOS), and HFPO-DA. These results suggest that HDPE and TPU wristbands can be used as effective tools for monitoring personal PFAS exposure.

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