Largest investigation reveals variability in chemical exposure measurements, suggesting better time point analysis is needed.
Our manuscript is the largest investigation of intra- and inter- variability in silicone wristband concentrations, containing over 23,000 chemical data points across two different personal chemical exposure studies. Certain chemicals were consistent within people across different days. For a subset of chemicals, results did not agree well between the two wristband studies. Our findings highlight the importance of measuring chemical data at different time points across studies to better understand the exposome. Environmental variables included in this study were not sufficient for explaining the data variability for most chemicals.
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Bramer et al. (2025) studied this question.
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