What does this research mean for the field?

Different wearable passive sampler designs systematically capture distinct chemical profiles, with silicone wristbands favoring less volatile, higher molecular weight compounds and Fresh Air wristbands favoring more volatile, lower molecular weight compounds. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To compare the chemical capture profiles and analytical variability of silicone and Fresh Air wristbands used as personal passive exposure samplers.

September 14, 2026Environmental Science & TechnologyOpen Access

Comparative Assessment of Personal Exposures to Environmental Contaminants Using Silicone Wristbands and Fresh Air Wristbands

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Authors

ELElizabeth Z. LinFaculty of Public Health NHNicholas J. HerkertUniversity of Iowa DHDuncan HayDuke University

Discussion

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Implication

Comparative study demonstrates distinct chemical selectivity between silicone and Fresh Air wristbands in adults, highlighting the need for method harmonization in exposure science.

Key Points

To compare the chemical capture profiles and analytical variability of silicone and Fresh Air wristbands used as personal passive exposure samplers.
Assessed 30 adults in Durham County, North Carolina, USA who wore silicone and Fresh Air wristbands simultaneously for 5 days alongside paired urine collection.
Analyzed wristbands across a broad chemical mass range (m/z 53.4–1050) using gas chromatography high-resolution mass spectrometry across five analytical workflows, targeted quantitation of 15 chemicals, and suspect screening.
Silicone wristbands showed 33- to 189-fold higher levels of less volatile compounds, whereas Fresh Air wristbands captured 9- to 80-fold higher levels of more volatile compounds, with differences scaling positively with log KOA.
Suspect screening annotated 1,330 compounds on silicone wristbands (80% distributed at 100–300 MW) versus 2,261 on Fresh Air wristbands (93% distributed at 50–200 MW).
Wristband measurements of the flame-retardant TCPP from both designs correlated with its corresponding urinary metabolite.

Cite This Study

Lin et al. (2026) studied this question.

synapsesocial.com/papers/6aa7b3d00926e14a848b2fdc https://doi.org/10.1021/acs.est.6c09387

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Implication

Comparative study demonstrates distinct chemical selectivity between silicone and Fresh Air wristbands in adults, highlighting the need for method harmonization in exposure science.

Comparative Assessment of Personal Exposures to Environmental Contaminants Using Silicone Wristbands and Fresh Air Wristbands

Discussion

Member takes

Implication

Key Points

Cite This Study

Comparative Assessment of Personal Exposures to Environmental Contaminants Using Silicone Wristbands and Fresh Air Wristbands

Discussion

Member takes

Implication

Key Points

Cite This Study

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