MyExposome Research: Determining chemical air equivalency using silicone personal monitors
The goals of this study are:
(1) to expand upon measurements of atmospheric uptake using Silicone Wristbands for both VOC and SVOC compounds,
(2) to build, test, and compare models of uptake parameters using inputs from established and convenient sources, and
(3) to provide an example of calculating air equivalent concentrations using the best available models.
The successful result was that log Ksa and log ke estimates calculated from uptake data were used to build predictive models from boiling point (BP) and other parameters (all models: R2 = 0.70–0.94). The log Ksa models were combined with published data and refined to create comprehensive and effective predictive models (R2 : 0.95–0.97). Final estimates of air equivalency using novel BP models correlated well over an example dataset (Spearman r = 0.984) across 5-orders of magnitude (<0.05 to >5000 ng/L)