Time series concentration data for nitrate in diffusion cell compartments. This dataset is not publicly accessible because: Data were not generated by EPA. The data are managed by University of Arkansas. It can be accessed through the following means: Data can be accessed by contacting the corresponding author of the manuscript, Julian L. Fairey, University of Arkansas, 4190 BELL, Fayetteville, AR 72701, USA, Email: julianf@uark.edu, Phone: +1 479 575 4023. Format: N/A.

This dataset is associated with the following publication: Hodges, S., D. Wahman, L. Haupert, H. Pham, M. Bozarth, M. Howland, and J. Fairey. Non-Steady State Fickian Diffusion Model Decreases Uncertainty in Gel Layer Diffusion Coefficients for Diffusive Gradients in Thin-Films Passive Samplers. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, USA, 57: 9793-9801, (2023).